Safety,
Safety,
maintenance and
maintenance and troubleshooti
troubleshooting
ng
of
of
pressure, flow and temperature
pressure, flow and temperature
electronic
electronic
downhole memory gauges
downhole memory gauges
includes
includes
safety, maintenance and troubleshooting instructions for:
safety, maintenance and troubleshooting instructions for:
AMEtrolog
AMEtrolog
TAMEtrolog
TAMEtrolog
Flolog
Flolog
Multilog
Multilog
Memory
Memory gauges gauges are are pressure pressure tools. tools. If If careful careful procedures procedures are are not not followed, followed, pressurepressure could be trapped inside the tool and the dismantling operation could become could be trapped inside the tool and the dismantling operation could become dangerous.
dangerous.
Memory gauges are designed for and can be run in a sour gas environment. Usual Memory gauges are designed for and can be run in a sour gas environment. Usual maintenance and safety practices for sour service equipment must be followed in maintenance and safety practices for sour service equipment must be followed in order to protect personnel using the tool and to ensure the longest possible tool order to protect personnel using the tool and to ensure the longest possible tool service life.
service life.
Memory gauges use lithium battery packs, which
Memory gauges use lithium battery packs, which have special handling and disposalhave special handling and disposal procedures.
procedures.
If the following recommendations are not clear or in case of doubt, please contact If the following recommendations are not clear or in case of doubt, please contact Metrolog at: Metrolog at: Tel: + 33 5 61348074 Tel: + 33 5 61348074 Fax: + 33 5 61348066 Fax: + 33 5 61348066 Email: [email protected] Email: [email protected]
It is assumed that all relevant safety aspects, precautions and recommendations It is assumed that all relevant safety aspects, precautions and recommendations are known by the operators using Metr
are known by the operators using Metr olog gauges.olog gauges.
As any downhole tool, a memory gauge can trap pressure. While every precaution As any downhole tool, a memory gauge can trap pressure. While every precaution must be taken to insure that pressure cannot enter in t
must be taken to insure that pressure cannot enter in t he gauge by:he gauge by: -
- regularly regularly changing changing the the O-rings,O-rings, -
- always always cleaning cleaning the the O-ring O-ring grooves grooves before before installing installing new new O-rings,O-rings, -
- using using the the right right O-ring O-ring type type for for a a given given environment,environment, -
- maintaining maintaining the the HPC HPC contact’s contact’s O-rings,O-rings, -
- from tfrom time ime to timto time, e, tightening ttightening the qhe quartz cuartz crystal rystal sensor sensor on on its its holder with holder with aa dynamometric range,
dynamometric range,
(see the following sections for more details), it is always possible to face the rare (see the following sections for more details), it is always possible to face the rare event that pressure entered in the tool but did not get out. It is particularly true in event that pressure entered in the tool but did not get out. It is particularly true in gas wells when the gauge has been left for a long time in the well: pressure could gas wells when the gauge has been left for a long time in the well: pressure could enter slowly by migrating through the O-rings but does not have time to bleed-off enter slowly by migrating through the O-rings but does not have time to bleed-off when the gauge is retrieved.
when the gauge is retrieved.
Most of Metrolog memory gauges are built for this problem not to happen: either Most of Metrolog memory gauges are built for this problem not to happen: either the pressure or the temperature probe of the AMEtrolog, TAMEtrolog, Flolog and the pressure or the temperature probe of the AMEtrolog, TAMEtrolog, Flolog and Multilog will be pushed out of their seat if pressure inside the tool becomes higher Multilog will be pushed out of their seat if pressure inside the tool becomes higher that the outside pressure. CGMs, by their design, cannot incorporate such a safety that the outside pressure. CGMs, by their design, cannot incorporate such a safety feature.
feature.
Metrolog proposes, for CGMs, a special electronics housing with a built-in relief Metrolog proposes, for CGMs, a special electronics housing with a built-in relief valve. This relief valve must be m
valve. This relief valve must be maintained in perfect condition to be aintained in perfect condition to be efficient.efficient. When gauges must be exposed to gas for a long period of time, it is advisable to When gauges must be exposed to gas for a long period of time, it is advisable to run them inside gauge carriers full of high temperature oil (i.e. silicone oil) in order run them inside gauge carriers full of high temperature oil (i.e. silicone oil) in order to avoid or limit the gas migration through the O-rings. Metrolog proposes these to avoid or limit the gas migration through the O-rings. Metrolog proposes these carriers for its different gauges.
carriers for its different gauges.
Safety
Safety
Pressure
Pressure
Memory
Memory gauges gauges are are pressure pressure tools. tools. If If careful careful procedures procedures are are not not followed, followed, pressurepressure could be trapped inside the tool and the dismantling operation could become could be trapped inside the tool and the dismantling operation could become dangerous.
dangerous.
Memory gauges are designed for and can be run in a sour gas environment. Usual Memory gauges are designed for and can be run in a sour gas environment. Usual maintenance and safety practices for sour service equipment must be followed in maintenance and safety practices for sour service equipment must be followed in order to protect personnel using the tool and to ensure the longest possible tool order to protect personnel using the tool and to ensure the longest possible tool service life.
service life.
Memory gauges use lithium battery packs, which
Memory gauges use lithium battery packs, which have special handling and disposalhave special handling and disposal procedures.
procedures.
If the following recommendations are not clear or in case of doubt, please contact If the following recommendations are not clear or in case of doubt, please contact Metrolog at: Metrolog at: Tel: + 33 5 61348074 Tel: + 33 5 61348074 Fax: + 33 5 61348066 Fax: + 33 5 61348066 Email: [email protected] Email: [email protected]
It is assumed that all relevant safety aspects, precautions and recommendations It is assumed that all relevant safety aspects, precautions and recommendations are known by the operators using Metr
are known by the operators using Metr olog gauges.olog gauges.
As any downhole tool, a memory gauge can trap pressure. While every precaution As any downhole tool, a memory gauge can trap pressure. While every precaution must be taken to insure that pressure cannot enter in t
must be taken to insure that pressure cannot enter in t he gauge by:he gauge by: -
- regularly regularly changing changing the the O-rings,O-rings, -
- always always cleaning cleaning the the O-ring O-ring grooves grooves before before installing installing new new O-rings,O-rings, -
- using using the the right right O-ring O-ring type type for for a a given given environment,environment, -
- maintaining maintaining the the HPC HPC contact’s contact’s O-rings,O-rings, -
- from tfrom time ime to timto time, e, tightening ttightening the qhe quartz cuartz crystal rystal sensor sensor on on its its holder with holder with aa dynamometric range,
dynamometric range,
(see the following sections for more details), it is always possible to face the rare (see the following sections for more details), it is always possible to face the rare event that pressure entered in the tool but did not get out. It is particularly true in event that pressure entered in the tool but did not get out. It is particularly true in gas wells when the gauge has been left for a long time in the well: pressure could gas wells when the gauge has been left for a long time in the well: pressure could enter slowly by migrating through the O-rings but does not have time to bleed-off enter slowly by migrating through the O-rings but does not have time to bleed-off when the gauge is retrieved.
when the gauge is retrieved.
Most of Metrolog memory gauges are built for this problem not to happen: either Most of Metrolog memory gauges are built for this problem not to happen: either the pressure or the temperature probe of the AMEtrolog, TAMEtrolog, Flolog and the pressure or the temperature probe of the AMEtrolog, TAMEtrolog, Flolog and Multilog will be pushed out of their seat if pressure inside the tool becomes higher Multilog will be pushed out of their seat if pressure inside the tool becomes higher that the outside pressure. CGMs, by their design, cannot incorporate such a safety that the outside pressure. CGMs, by their design, cannot incorporate such a safety feature.
feature.
Metrolog proposes, for CGMs, a special electronics housing with a built-in relief Metrolog proposes, for CGMs, a special electronics housing with a built-in relief valve. This relief valve must be m
valve. This relief valve must be maintained in perfect condition to be aintained in perfect condition to be efficient.efficient. When gauges must be exposed to gas for a long period of time, it is advisable to When gauges must be exposed to gas for a long period of time, it is advisable to run them inside gauge carriers full of high temperature oil (i.e. silicone oil) in order run them inside gauge carriers full of high temperature oil (i.e. silicone oil) in order to avoid or limit the gas migration through the O-rings. Metrolog proposes these to avoid or limit the gas migration through the O-rings. Metrolog proposes these carriers for its different gauges.
carriers for its different gauges.
Safety
Safety
Pressure
Pressure
In extreme cases, for very long duration operation in gas wells, Metrolog proposes In extreme cases, for very long duration operation in gas wells, Metrolog proposes Fully-Welded CGM gauges. These CGMs do not have any O-ring and thus are the Fully-Welded CGM gauges. These CGMs do not have any O-ring and thus are the only solution for very long exposure to gas.
only solution for very long exposure to gas.
However, and except when Fully-Welded CGMs have been used, all the above However, and except when Fully-Welded CGMs have been used, all the above precautions may not be sufficient to prevent pressure to enter the gauge. Strict precautions may not be sufficient to prevent pressure to enter the gauge. Strict procedures must thus be followed.
procedures must thus be followed.
When pressure is trapped in a memory gauge, two possible symptoms must alert When pressure is trapped in a memory gauge, two possible symptoms must alert the user:
the user:
- the HPC sleeve is extremely hard to
- the HPC sleeve is extremely hard to move and even stuck andmove and even stuck and
- the electronics housing is very hard to move and its locking screws are hard to - the electronics housing is very hard to move and its locking screws are hard to remove.
remove.
Caution!! These symptoms are not exhaustive and pressure could be t
Caution!! These symptoms are not exhaustive and pressure could be t rapped in therapped in the gauge without any evidence of such a p
gauge without any evidence of such a p roblem.roblem.
A highly possible danger comes from the HPC contacts that could be expelled with A highly possible danger comes from the HPC contacts that could be expelled with a great force when the HPC sleeve is moved. The HPC contacts are glued in place a great force when the HPC sleeve is moved. The HPC contacts are glued in place but just to keep them in their seat not t
but just to keep them in their seat not t o resist to high internal pressure.o resist to high internal pressure.
taken to avoid the housing to be ejected violently (for the same trapped pressure, taken to avoid the housing to be ejected violently (for the same trapped pressure, the force pushing on the housing is 10 times higher that the force pushing on the the force pushing on the housing is 10 times higher that the force pushing on the HPC contact.
HPC contact.
All Metrolog's memory gauges have been designed to be run in sour service All Metrolog's memory gauges have been designed to be run in sour service environment but, in this case, O-rings must be changed between every run and the environment but, in this case, O-rings must be changed between every run and the bottom nose filled-in with high temperature g
bottom nose filled-in with high temperature g rease.rease. The
The fluid. fluid.
Complete buffer tube adapters or special bottom noses with a built-in buffer tube Complete buffer tube adapters or special bottom noses with a built-in buffer tube are available on request for sensor protection.
are available on request for sensor protection.
W h e n m W h e n mo v i n g o v i n g t h e H P C s l e e v e t h e H P C s l e e v e d o n o t s t a n d id o n o t s t a n d in f r o n t n f r o n t o f t h e o f t h e H P CH P C c o n t a c t s . c o n t a c t s . C h e c k t h e i r p o s i t i o n b e f o r e m o v i n g t h e H P C s l e e v e :C h e c k t h e i r p o s i t i o n b e f o r e m o v i n g t h e H P C s l e e v e : t h e y a r e o n t h e s a m e a x i s t h a t t h e s e r i a l n u m b e r v i s i b l e o n a t h e y a r e o n t h e s a m e a x i s t h a t t h e s e r i a l n u m b e r v i s i b l e o n a f l a t s u r f f l a t s u r fa c e wa c e wh e n t h e Hh e n t h e HP C s l e e v e i s i n i t s u p P C s l e e v e i s i n i t s u p p o s i t i o n .p o s i t i o n .
WARNING
WARNING
Try to open the electronics housing first. In this case, all precautions must beTry to open the electronics housing first. In this case, all precautions must beW h e n r e m o v i n g t h e e l W h e n r e m o v i n g t h e e le c t r o n i c s h o u s ie c t r o n i c s h o u s in g n g d o n o t s td o n o t s ta n d i n t h ea n d i n t h e a l i a l ig n m e n t g n m e n t o f t h e t o o l .o f t h e t o o l .
Sour service
Sour service
CG
Lithium batteries used by Metrolog memory gauges are Lithium based batteries Lithium batteries used by Metrolog memory gauges are Lithium based batteries that are a potential hazard in case of wrong usage or wrong operation. We thus that are a potential hazard in case of wrong usage or wrong operation. We thus advise the users to observe particular precautions when using Lithium batteries, advise the users to observe particular precautions when using Lithium batteries, such as:
such as:
In order to protect the users, these batteries are equipped with a double level of In order to protect the users, these batteries are equipped with a double level of fuse. One fuse is built in the cell itself, a second fuse has been added at Metrolog's fuse. One fuse is built in the cell itself, a second fuse has been added at Metrolog's request by the battery manufacturer. However, it is important to understand and request by the battery manufacturer. However, it is important to understand and respect the above rules and to treat these batteries with special care with a full respect the above rules and to treat these batteries with special care with a full understanding of their specificity; the protection by fuses is of no use in case of understanding of their specificity; the protection by fuses is of no use in case of deformation or crushing of
deformation or crushing of a battery by a mechanical action.a battery by a mechanical action. If you have any question or doubt, please contact Metrolog. If you have any question or doubt, please contact Metrolog.
1
1 xx (E15, E15E, H15, J15, F15, F15E, 2F15E, etc..) batteries are limited to (E15, E15E, H15, J15, F15, F15E, 2F15E, etc..) batteries are limited to 0 °C or 300 °F.
0 °C or 300 °F. 2
2 xx (E18, F18, etc..) batteries are limited (E18, F18, etc..) batteries are limited toto 0 °C or 350 0 °C or 350 °F.°F.
Battery safety
Battery safety
1. Do not use batteries above their temperature limit. 1. Do not use batteries above their temperature limit.
2. Do not open the batteries in order to prevent any risk of short 2. Do not open the batteries in order to prevent any risk of short circuit.
circuit.
3. Do not introduce a metallic or conductive object in the battery 3. Do not introduce a metallic or conductive object in the battery connector in order to prevent any risk of short
connector in order to prevent any risk of short circuit.circuit. 4. Do not throw them in fire.
4. Do not throw them in fire. 5. Do not open them.
5. Do not open them. 6. Do not try to recharge
6. Do not try to recharge them.them.
7. Do not put them under any pressure or stress that could deform 7. Do not put them under any pressure or stress that could deform them.
them.
8. Do not knock on the batteries in order to depassivate them. If 8. Do not knock on the batteries in order to depassivate them. If needed, use the depassiver supplied by M
needed, use the depassiver supplied by M etrolog.etrolog.
WARNING
WARNING
In In most most of of the the countries, countries, strict strict regulations regulations apply apply for for the the disposal disposal oror the destruction of Lithium batteries. Please contact specialized the destruction of Lithium batteries. Please contact specialized companies or Metrolog. companies or Metrolog.WARNING
WARNING
B e f o r e B e f o r e u s e u s e c a r e f u l lc a r e f u l ly c h e c k y c h e c k t h e m a x i m u m t e m p e r a t u r e o f t h e m a x i m u m t e m p e r a t u r e o f t h et h e s e l e c t e d b a t t e r y a n d c o m p a r e i t w i t h t h e e x p e c t e d d o w n h o l e s e l e c t e d b a t t e r y a n d c o m p a r e i t w i t h t h e e x p e c t e d d o w n h o l e t e m p e r a t u r e . t e m p e r a t u r e .The O-rings generally supplied by Metrolog are Viton O-rings 90 Duro. The O-rings generally supplied by Metrolog are Viton O-rings 90 Duro.
When replacing the O-rings, it is important to follow strict procedures in order to When replacing the O-rings, it is important to follow strict procedures in order to achieve the proper seals and their longevity:
achieve the proper seals and their longevity:
1. Apply the minimum possible stress. Pass the O-rings around the smaller 1. Apply the minimum possible stress. Pass the O-rings around the smaller diameter possible.
diameter possible.
2. Because of the inevitable stress applied when installing new O-rings, once 2. Because of the inevitable stress applied when installing new O-rings, once installed, wait 2 minutes before placing the housing that will cover them. This installed, wait 2 minutes before placing the housing that will cover them. This gives time for the O-rings
gives time for the O-rings to relax and to take back their origto relax and to take back their original shape.inal shape. 3. Metrolog recommends not to use back-up rings anymore.
3. Metrolog recommends not to use back-up rings anymore.
Wherever an O-ring and a back-up ring were used, install two O-rings of the same Wherever an O-ring and a back-up ring were used, install two O-rings of the same size in the same groove instead.
size in the same groove instead. ((Figure M1 - O-rings installationFigure M1 - O-rings installation))
For long or multiple exposures to gas, it may be needed to replace the standard For long or multiple exposures to gas, it may be needed to replace the standard Viton 709/90 O-rings by special O-rings made of other compounds or harder Viton Viton 709/90 O-rings by special O-rings made of other compounds or harder Viton like Viton 858/95
like Viton 858/95
These O-rings have been designed to resist to explosive decompression and are These O-rings have been designed to resist to explosive decompression and are used by major oil producing companies in gas fields for downhole and surface used by major oil producing companies in gas fields for downhole and surface applications.
applications.
Their main characteristic being to have a very low permeability to gas, they greatly Their main characteristic being to have a very low permeability to gas, they greatly reduce the gas entry (by diffusion) int
reduce the gas entry (by diffusion) int o the gauge.o the gauge.
Same replacement precautions apply than for standard Viton O
Same replacement precautions apply than for standard Viton O -rings.-rings.
In order to determine which compound is best adapted to each application, In order to determine which compound is best adapted to each application, contact Metrolog and supply the flui
contact Metrolog and supply the flui d characteristics and chemical content.d characteristics and chemical content.
Replacement of O-rings
Replacement of O-rings
WARNING
(
Figure M2 - 1.25" OD AMEtrolog parts description )The HPC sleeve O-rings are to be changed frequently since the HPC sleeve will be moved at each run and because they protect the H PC contacts.
On AMEtrologs, the HPC sleeve O-rings are changed without opening the gauge by removing the bottom adapter:
1 Put the gauge on a flat surface. Pull the HPC sleeve in the down position (uncovering the 2 HPC sleeve O-rings).
2 Remove the locking ring screw. Then remove the bottom nose, the bottom nose adapter and the locking ring by unsc rewing the bottom nose adapter. 3 Remove the locking O-ring, the HPC sleeve and the HPC sleeve O-rings.
4 Place new O-rings (n° 022) by sliding them around the sensor holder. Grease them with lubriplate grease.
5 Replace the HPC sleeve, slide it in the up position and replace the locking O-ring (n° 022) around the sensor holder.
6 Replace the locking ring and re-assemble the bottom nose and bottom nose adapter by screwing them to the sensor holder. Replace the locking ring screw and tighten it gently.
(
Figure M3 - 1.25" OD AMEtrolog CC parts description )On AMEtrolog CC gauges, a similar procedure must be followed. However, since AMEtrolog CC do not have locking ring and do not use n° 022 O-rings for the HPC sleeve, the procedure becomes:
1 Put the gauge on a flat surface. Pull the HPC sleeve in the down position (uncovering the 2 HPC sleeve O-rings).
2 Remove the locking screw. Then remove the bottom nose and the bottom nose adapter by unscrewing the bottom adapter.
3 Remove the locking O-ring, the HPC sleeve and the HPC sleeve O-rings.
4 Place new O-rings (n° 118) by sliding them around the sensor holder. Grease them with lubriplate grease.
5 Replace the HPC sleeve, slide it in the up position and replace the locking O-ring (n° 022) around the sensor holder.
6 Re-assemble the bottom nose and bottom nose adapter by screwing them to the sensor holder. Replace the locking screw and tighten it gently.
HPC sleeve O-rings on 1.25 OD AMEtrolog (8000 < serial number < 8300)
The electronics housing O-rings must be changed regularly above all if the gauge is used in gas environment or in corrosive fluids:
1 Put the gauge on a flat surface.
2 Remove the four electronics housing locking screws and remove the electronics housing with great care using the tip of a screw driver to start moving slowly the O-rings from their seal bore.
3 Disconnect the battery by pulling it while holding firmly the gauge top connector with the other hand, in order not to apply tension on the circuit boards. Remove the old electronics housing O-rings.
4 Place new housing O-rings (n° 118) by sliding them around the electronics and grease them.
5 Reconnect the battery and slide the electronics housing back in place with the same care than for removing it. Place and tighten the four electronics housing screws.
On AMEtrolog CC gauges, a similar procedure must be followed. However, since AMEtrolog CC use a truarc to hold the battery in place the procedure becomes: 1 Put the gauge on a flat surface.
2 Remove the four electronics housing locking screws and remove the electronics housing with great care using the tip of a screw driver to start moving slowly the O-rings from their seal bore.
3 Remove the battery locking truarc, disconnect the battery by pulling it while holding firmly the gauge top connector with the other hand. Remove the old electronics housing O-rings.
4 Place new housing O-rings (n° 118) b y sliding them around the electronics. 5 Reconnect the battery, taking great care to replace the battery locking truarc
and slide the electronics housing back in place with the same care than for removing it. Place and tighten the four electronics housing screws.
Electronics housing O-rings on 1.25 OD AMEtrolog (8000 < serial number < 8300)
(Figure M4 – 1.25" OD CGM parts description )
To change the HPC sleeve O-rings and the housing O-rings on a CGM:
1 Put the gauge on a flat surface. Pull the HPC sleeve in the down position (uncovering the 2 HPC sleeve O-rings).
2 Remove the four electronics housing locking screws and remove the electronics housing with great care using the tip of a screw driver to start moving slowly the O-rings from their seal bore.
3 Disconnect the battery by pulling it while holding firmly the gauge top connector with the other hand, in order not to apply tension on the circuit boards.
4 Remove the two halves of the CGM locking ring by removing the O-ring which holds them together. Remove the old electronics housing O-rings and the old HPC sleeve O-rings. Remove the HPC sleeve by sliding it around the electronics. Remove the lock O-ring.
5 Place new housing O-rings (n° 118) by sliding them around the electronics and grease them.
6 Place by sliding them around the electronics: -the lock O-ring (n° 022),
- the HPC sleeve and
- the new HPC sleeve O-rings (n° 022).
Replace the two halves of the CGM locking ring and replace their O-ring (n° 022).
7 Connect the battery and slide the electronics housing back in place with the same care than for removing it. Place and tighten the four electronics housing screws.
(Figure M5 – 1.25" OD CGM CC parts description )
On CGM CC gauges, a similar procedure must be followed. However, since CGM CC use a truarc to hold the battery in place and do not use n° 022 O-rings for the HPC sleeve, the procedure becomes:
1 Put the gauge on a flat surface. Pull the HPC sleeve in the down position (uncovering the 2 HPC sleeve O-rings).
2 Remove the four electronics housing locking screws and remove the electronics housing with great care using the tip of a screw driver to start moving slowly the O-rings from their seal bore.
3 Remove the battery locking truarc, disconnect the battery by pulling it while holding firmly the gauge top connector with the other hand.
4 Remove the two halves of the CGM locking ring by removing the O-ring which holds them together. Remove the old electronics housing O-rings and the old HPC sleeve O-rings. Remove the HPC sleeve by sliding it around the electronics. Remove the lock O-ring.
5 Place new housing O-rings (n° 118) by sliding them around the electronics and grease them.
6 Place by sliding them around the electronics: -the lock O-ring (n° 022),
- the HPC sleeve and
- the new HPC sleeve O-rings (n° 118).
Replace the two halves of the CGM locking ring and replace their O-ring (n° 022).
7 Reconnect the battery, taking great care to replace the battery locking truarc and slide the electronics housing back in place with the same care than for removing it. Place and tighten the four electronics housing screws.
(Figure M6- CGM quartz sensor holder detail)
To change the quartz sensor holder O-rings (this operation must been done with great care not to damage the sensor electric al connections):
1 Put the gauge on a flat surface.
2 Remove the bottom nose by unscrewing it. Remove the CGM bottom nose adapter locking screw and remove the CGM bottom nose adapter by unscrewing it. If too tight, remove one of the quartz sensor holder screws and use a C-spanner to unlock it.
3 Remove the four quartz sensor holder screws.
Slide with great care the quartz sensor holder to uncover its O-rings, using the tip of a screwdriver to start moving slowly the O-rings from their seal bore. 4 Remove the old O-rings.
5 Place new quartz sensor holder O-rings (n° 118) by sliding them gently around the upset and grease them.
6 Slide the quartz sensor holder back in place with the same care than for removing it. Place and tighten the fou r quartz sensor holder screws.
7 assemble the CGM bottom adapter and tighten its locking screw. Re-assemble the bottom nose.
Sensor housing O-rings on the CGM (any serial number)
WARNING
The CGM Quartz sensor does not need any maintenance. It is not possible to disassemble it nor to check the electrical connections without desoldering the sensor wires from the electronic boards. This operation can only be performed in an electronic lab by an experienced technician. The following procedure is only to replace the quartz sensor holder O-rings.WARNING
The sensor housing and the quartz sensor holder can only b e pulled apart for a few centimeters, just enough to uncover the O-rings. It is not possible to extract the sensor.Do not over-pull as it will damage or break the sensor electrical connections.
WARNING
Since the O-rings deformed to pass the upset, wait 2 minutes for the O-rings to recover their normal shape.(Figure M7 – 1.00" OD AMEtrolog parts description )
To change the HPC sleeve O-rings and the housing O-rings on a 1.00" OD AMEtrolog:
1 Put the gauge on a flat surface. Pull the HPC sleeve in the down position (uncovering the 2 HPC sleeve O-rings).
2 Remove the electronics housing by rotating its locking nut while firmly holding it and the gauge. Remove the electronics housing with great care.
3 Disconnect the battery by pulling it while holding firmly the gauge top connector with the other hand, in order not to apply tension on the circuit boards. For 1.00" OD gauges using J batteries, first remove the truarc before pulling the battery.
4 Remove the two halves of the locking nut. Remove the old electronics housing O-rings and the old HPC sleeve O-rings. Remove the HPC sleeve by sliding it around the electronics. Remove the lock O-ring.
5 Place new housing O-rings (n° 114) by sliding them around the electronics. 6 Place by sliding them around the electronics:
-the lock O-ring (n° 018), - the HPC sleeve and
- the new HPC sleeve O-rings (n° 018). Replace the two halves of the locking nut.
4 Connect the battery by pushing it gently in place while rotating it in order to find the proper position. For 1.00" OD gauges using J batteries, place the truarc to secure the battery in its location.
5 Slide the electronics housing back in place with the same care than for removing it. Re-assemble the electronics housing by screwing its locking nut while firmly holding it and the gauge.
All Multilog maintenance procedures apply to TAMEtrolog and Flolog.
(Figure M8 – Multilog parts description)
To change the HPC sleeve O-rings and the housing O-rings on a Multilog:
1 Put the gauge on a flat surface. Pull the HPC sleeve in the down position (uncovering the 2 HPC sleeve O-rings).
2 Remove the four electronics housing locking screws and remove the electronics housing with great care using the tip of a screw driver to start moving slowly the O-rings from their seal bore.
3 Remove the battery locking truarc, disconnect the battery by pulling it while holding firmly the gauge top connector with the other hand.
4 Remove the two halves of the locking ring by removing the O-ring which holds them together. Remove the old electronics housing O-rings and the old HPC sleeve O-rings. Remove the HPC sleeve by sliding it around the electronics. Remove the lock O-ring.
5 Place new housing O-rings (n° 118) by sliding them around the electronics. 6 Place by sliding them around the electronics:
-the lock O-ring (n° 022), - the HPC sleeve and
- the new HPC sleeve O-rings (n° 118).
Replace the two halves of the locking ring and replace their O-ring (n° 022). 7 Reconnect the battery, taking great care to replace the battery locking truarc
and slide the electronics housing back in place with the same care than for removing it. Place and tighten the four electronics housing screws.
In addition to the regular change of O-rings, the Multilog needs a special treatment before each job: the spinner holder needs to be filled with light fluid in order to insure lubrication and to prevent flui d entry that could stop the spinner rotation. To fill the spinner holder, just bef ore a job:
1 Remove the injection screw with a 7/64" Allen key from the Multilog body. 2 Place the Multilog upside down and fill the spinner holder with light, non greasy
fluid (kerosene or light fuel) using a syringe for example.
3 When the fluid flows from the spinner, the spinner holder is full. Replace the injection screw and tighten it.
HPC sleeve and electronics housing O-rings on Multilog
(Figure M9 – Spinner assembly detail )
To change the sensors holder O-rings on a 1 11/16" Multilog:
1 Put the gauge on a flat surface.
2 Remove the four body locking screws with a 9/64" Allen key. Pull apart the Multilog body and the sensors holder.
3 Remove the four sensors holder O-rings by cutting them (and if necessary the two pressure isolation O-rings).
4 Place by sliding them around the sensors holder: - the new sensors holder O-rings (n° 123) and
- eventually the new pressure isolation O-rings (n° 1 24).
5 Replace the Multilog body on the sensors. Place and tighten the four body locking screws.
(Figure M12 – 1.5" Flolog spinner assembly detail) To change the sensors holder O-rings on a 1.5" Multilog: 1 Put the gauge on a flat surface.
2 Remove the four body locking screws with a 9/64" Allen key. Pull apart the Multilog body and the sensors holder.
3 Remove the four sensors holder O-rings.
4 Place by sliding them around the sensors holder the new sensors holder O-rings (n° 120)
5 Replace the Multilog body on the sensors holder. Place and tighten the four body locking screws.
Sensors holder O-rings on 1
11/16Multilog
The following maintenance procedures are relatively rare and should only be performed in the lab.
(Figure M9 – Spinner assembly detail )
(Figure M12 – 1.5" Flolog spinner assembly detail) To change spinner assembly O-rings on a Multilog:
1 Remove the Multilog cage by unscrewing it with the necessary precautions to prevent deforming it.
2 Remove the two cage locking O-rings. Remove the spinner holder locking screw (or at least unscrew it enough to free the spinner holder) with a 1/16" Allen key and unscrew the spinner holder with a 126A.35 C spanner.
3 Remove the spinner holder O-ring and replace it by a new one (n° 015). 4 Replace the spinner holder and tighten it with the 126A.35 C spanner.
While tightening the spinner holder, check that the spinner is rotating freely. If it is blocked, unscrew the spinner holder of a 1/4 of turn to recover free rotation. Once the spinner holder is in the correct position, replace and tighten the spinner holder locking screw.
5 Replace the two cage locking O-rings, then the Multilog cage and tighten it with the necessary precautions to prevent deforming it.
(Figure M9 – Spinner assembly detail )
(Figure M12 – 1.5" Flolog spinner assembly detail) To change temperature sensor O-rings on a Multilog:
1 Pull on the temperature sensor in order to remove it from its location but with extreme precautions in order to prevent to break the connecting wires.
2 Remove the two temperature sensor O-rings.
3 Place the new temperature sensor O-rings (n° 007) by sliding them around the temperature sensor.
4 Push the temperature sensor back in place.
Please note that TAMEtrolog uses n° 011 O-rings instead of n° 007.
Spinner assembly O-rings on Multilog
(Figure M6- CGM quartz sensor holder detail)
To tighten the quartz sensor and its bellow on the quartz sensor holder (this operation must been done with great care not to damage the sensor electrical connections):
1 Put the gauge on a flat surface.
2 Remove the bottom nose by unscrewing it. Remove the CGM bottom nose adapter locking screw and remove the CGM bottom nose adapter by unscrewing it. If too tight, remove one of the quartz sensor holder screws and use a C-spanner to unlock it.
3 Remove the four quartz sensor holder screws.
4 Slide with great care the quartz sensor holder to uncover its O-rings, the sensor bellow and the quartz sensor nut, using the tip of a screw driver to start moving slowly the O-rings from their seal bore.
5 Remove the old O-rings and place new quartz sensor holder O-rings (n° 118) by sliding them gently around the upset.
6 Tighten the sensor bellow on the quartz sensor holder and the quartz sensor on its bellow with a dynamometric range at 25 lb s.ft or 3.46 m.daN.
7 Slide the quartz sensor holder back in place with the same care than for removing it. Place and tighten the fou r quartz sensor holder screws.
8 assemble the CGM bottom adapter and tighten its locking screw. Re-assemble the bottom nose.
Tightening the quartz sensor and its bellow on quartz sensor holder
WARNING
The CGM Quartz sensor does not need any maintenance. However, from time to time it may be needed to tighten the quartz sensor and its bellow on the quartz sensor holder since the connections could become loose due to vibrations. This operation can only be performed in an electronic lab by an experienced technician. The following procedure is then to be followed.WARNING
The sensor housing and the quartz sensor holder can only b e pulled apart for a few centimeters, just enough to uncover the O-rings and the sensor bellow nut.It is not possible to extract the sensor.
Do not over-pull as it will damage or break the sensor electrical connections.
WARNING
Since the O-rings deformed to pass the upset, wait 2 minutes for the O-rings to recover their normal shape.The HPC contacts must be kept clean at all times. Do not clean them with a sharp object nor with a metallic tool but with cloth or cleaning paper.
There is no other routine maintenance on the HPC contacts than cleaning. However, HPC O-rings must be changed before l ong term jobs.
Refer to "Special O-rings for operations in gas wells" higher in this section. (Figure M10 - HPC contacts detail)
1 Strip the gauge as much as possible, following one or more of the procedures described above, in order to work on the part holding the HPC contacts only. 2 Heat the HPC contacts with a hot air blower for example, up to a temperature
of 150°C (300 °F).
3 When the part holding the HPC contacts and the HPC contacts are hot, insert the tip of two small screwdrivers in the HPC contact groove and pull firmly to remove it. Do not pull by more than a few centimeters not to break the electrical connections.
4 Clean the bottom of the HPC contact seat. Remove first all traces of glue with a metallic tool without damaging the seal bore. Clean it then with an industrial cleaner, for example: Loctite 7063
5 Replace the 2 HPC contact O-rings on each contact carefully, to avoid cutting the connection wire on the sharp edges o f the HPC holes.
6 Glue the HPC contacts back in place using high temperature metal-metal glue, for example:
Activator Loctite 7649 Glue Loctite 648
Press firmly each HPC contact in its seat during a few seconds, checking that each contact has reached the bottom of its seat in order for the HPC sleeve to travel freely above it.
7 Replace all O-rings and all other mechanical parts and re-assemble the gauge.
Maintenance of HPC contacts
WARNING
HPC contacts also have 2 O-rings (n° 011) which are replaced during major repairs only. Since the HPC contacts are glued in place for safety reasons, the procedure below is usually performed at Metrolog's. We give it for reference and for emergency action.The following procedure must never be performed in the field but only in an electronic lab by an experienced technician.
When a special CGM housing with relief valve is used, the status of the relief valve must be checked after each run. The relief valve rod must be flush with the bottom of the relief valve nut. If the relief valve rod has popped out, it means that the gauge internal pressure was greater than the outside pressure and that the relief valve has completed its task.
(Figure M11 – CGM housing relief valve detail )
To redress the CGM housing relief valve:
1 Make sure the rod is pushed back in order to introduce a 5/16" Allen key inside the relief valve nut. Unscrew th e relief valve nut.
2 Pull the relief valve rod and spring out. 8 Place two new O-rings (n° 011).
9 Replace the relief valve rod and push it down in its seat, replace the relief valve spring and nut. Tighten the relie f valve nut with the 5/16" Allen key. 10 Check that the relief valve rod is flush with the bottom of the relief valve nut.
Maintenance of special CGM housing relief valve
WARNING
It is extremely important to redress the relief valve as frequently as possible and in any case each time the relief valve rod has been found out of its seat.(Figure M9 – Spinner assembly detail )
(Figure M12 – 1.5" Multilog spinner assembly detail) To replace or change the spinner of a Multilog:
1 Remove the Multilog cage by unscrewing it with the necessary precautions to prevent deforming it.
2 Unscrew the spinner locking screw with a 5/64" Allen key. Holding the spinner firmly but without deforming it, unscrew the spinner locking nut.
3 Remove the spinner by pulling it out from its seat. If necessary, remove and replace the spinner locking pin.
4 Place a new spinner, taking care to align the spinner groove with the spinner locking pin.
5 Replace the spinner locking nut and tighten it only gently. Replace the spinner locking screw and, holding the spinner locking nut with a flat key, tighten it firmly.
6 Replace the cage corresponding to the spinner you just installed.
(Figure M9 – Spinner assembly detail )
(Figure M12 – 1.5" Multilog spinner assembly detail) (Figure M13 – Spinner parts detail)
To redress the spinner of a Multilog:
1 Remove the Multilog cage by unscrewing it with the necessary precautions to prevent deforming it.
2 Unscrew the spinner locking screw with a 5/64" Allen key. Holding the spinner firmly but without deforming it, unscrew the spinner locking nut.
3 While holding the spinner firmly but without deforming nor bending the axis, unscrew the magnet holder.
4 Remove the spinner by pulling it out from its seat. Remove the spinner locking pin.
5 Remove the spacer retainer and unscrew the spinner holder cone. Remove it and remove the spacer. Remove the axis.
6 Replace the ball bearings with high quality, non-flanged, stainless steel ball bearings (D.35.P.BAB for a set of 2)
7 Re-assemble everything in the reverse order. Do not forget to flush the complete spinner with light oil and to fill the magnet holder chamber with it through the injection screw.
To replace the E battery on 1.25" OD gauges: 1 Put the gauge on a flat surface.
2 Remove the four electronics housing locking screws and remove the electronics housing with great care using the tip of a screwdriver to move slowly the O-rings from their seal bore.
3 Disconnect the battery by pulling it while holding firmly the gauge top connector with the other hand, in order not to apply tension on the circuit boards.
4 Connect the battery by pushing it gently in place while rotating it in order to find the proper position.
5 Slide the electronics housing back in place with the same care than for removing it. Place and tighten the four electronics housing screws.
To replace the H battery on 1" gauges: 1 Put the gauge on a flat surface.
2 Remove the electronics housing by rotating its locking nut while firmly holding it and the gauge. Remove the electronics housing with great care.
3 Disconnect the battery by pulling it while holding firmly the gauge top connector with the other hand, in order not to apply tension on the circuit boards.
4 Connect the battery by pushing it gently in place while rotating it in order to find the proper position.
5 Slide the electronics housing back in place with the same care than for removing it. Re-assemble the electronics housing by screwing its locking nut while firmly holding it and the gauge.
To replace the F battery on 1.25" g auges: 1 Put the gauge on a flat surface.
2 Remove the four electronics housing locking screws and remove the electronics housing with great care using the tip of a screwdriver to move slowly the O-rings from their seal bore.
3 Remove the battery locking truarc, disconnect the battery by pulling it while holding firmly the gauge top connector with the other hand.
4 Reconnect the battery, taking great care to replace the battery locking truarc. 5 Slide the electronics housing back in place with the same care than for
removing it. Place and tighten the four electronics housing screws.
To replace the J battery on 1" g auges: 1 Put the gauge on a flat surface.
2 Remove the electronics housing by rotating its locking nut while firmly holding it and the gauge. Remove the electronics housing with great care.
3 Remove the battery locking truarc, disconnect the battery by pulling it while holding firmly the gauge top connector with the other hand.
4 Reconnect the battery, taking great care to replace the battery locking truarc. 5 Slide the electronics housing back in place with the same care than for
removing it. Re-assemble the electronics housing by screwing its locking nut while firmly holding it and the gauge.
The spare parts needed for regular maintenance include O-rings and screws. See the relevant figures for O-rings and screws location and number.
Red references on figures are for parts to be changed regularly.
Orange references on figures are for parts to be changed from time to time and before long term jobs.
O-ring part numbers are given for a set of 10 pieces of Viton 709/90 O-ring.
For part number of Viton 858/95 O-rings, replace S by F: for example, the part number of a pack of 10 n° 118 V858/95 O-rings is D.30.P.F118.
Screw part numbers are given for a set of 10 screws.
Tool Use O-ring N° of Part number
for size 0-rings for 10 pieces
per gauge of Viton 709/90
118 4 D.30.P.S118
1.25" OD HPC sleeve 022 3 D.30.P.S022
(SN < 8300) Bottom adapter & nose 113 2 D.30.P.S113
118 4 D.30.P.S118
HPC sleeve 118 2 D.30.P.S118
1.25" OD HPC sleeve lock 022 1 D.30.P.S022
(SN > 8300) Bottom adapter & nose 113 2 D.30.P.S113
Electronics housing 118 4 D.30.P.S118
1.25" OD HPC sleeve 022 4 D.30.P.S022
(SN < 7300) Sensor housing 118 4 D.30.P.S118
Bottom adapter & nose 113 2 D.30.P.S113
Electronics housing 118 4 D.30.P.S118
HPC sleeve 118 2 D.30.P.S118
1.25" OD HPC sleeve lock + ring 022 2 D.30.P.S022
(SN > 7300) Sensor housing 118 4 D.30.P.S118
Bottom adapter & nose 113 2 D.30.P.S113
114 4 D.31.P.S114
HPC sleeve 018 3 D.31.P.S018
1" OD Bottom nose adapter 113 1 D.30.P.S113
Bottom nose 109 1 D.31.P.S109
Tool Use Screw Allen key Part number
for size size (for screws)
Lock ring and CHC 6.32 7/64" D.30.P.SSCR
1.25" OD electronics housing l= 4 mm
Lock ring, electronics CHC 6.32 7/64 " D.30.P.SSCR
1.25" OD and sensor housing l= 4 mm
Lock screw CHC 4.40 3/32" D.31.P.SSCR
1" OD l= 1/8 "
Spare parts list for AMEtrolog and CGM
AMEtrolog Electronics housing
AMEtrolog Electronics housing
CC
CG
CG
CC
AMEtrolog Electronics housing
AMEtrolog
CG
The spare parts needed for regular maintenance include O-rings and screws. O-rings have got a life duration of 10 years. Keep them away from UV.
See the relevant figures for O-rings and screws location and number. Red references on figures are for parts to be changed regularly.
Orange references on figures are for parts to be changed from time to time.
Blue references on figures are parts of a complete redress kit and these parts are to be changed at the lab only.
O-ring part numbers are given for a set of 10 pieces of Viton 709/90 O-ring.
For part number of Viton 858/95 O-rings, replace S by F: for example, the part number of a pack of 10 n° 118 V858/95 O-rings is D.30.P.F118.
Screw part numbers are given for a set of 10 screws.
Tool Use O-ring N° of Part number
for size 0-rings for 10 pieces
per gauge of Viton 709
118 4 D.30.P.S118
any OD HPC sleeve 118 2 D.30.P.S118
HPC sleeve lock + ring 022 2 D.30.P.S022
Temperature probe 007 2 D.30.P.S007 Body 120 4 D.30.P.S120 1.5" Cage lock 120 2 D.30.P.S120 Body 123 4 D.30.P.S123 1 11/16" Pressure isolation* 124 2 D.30.P.S124 Cage lock 125 2 D.30.P.S125
* only used during pressure calibration
Tool Use Screw Allen key Part number
for size size (for screws)
Electronics housing CHC 6.32 7/64" D.30.P.SSCR
any OD Multilog body CHC 8.32 9/64" D.32.P.SSCR
Spinner holder assembly redress kit definition for all type of Multilog
Description Quantity Part number
Injection screw (uses 7/64" key) 1 D.30.P.BOS
Spinner holder locking screw (uses 1/16" key) 2 D.30.P.SBS
Spinner locking screw (uses 5/64" key) 2 D.30.P.SLS
Spinner locking pin 2 D.30.P.MSP
n° 015 O-ring for spinner holder 2 A.00.P.S015
Multilog ball bearings 2 D.35.P.BAB
n° 007 O-ring for temperature sensor 2 A.00.P.S007
Complete redress kit with all the above 1 D.30.P.FKIT
Spare parts list for Multilog
Multilog Electronics housing
Multilog Multilog
Multilog gauges can be used with various cages and spinners according to the minimum ID of the completion in which they will be run and to the maximum flow velocity expected.
Four sizes of Multilog cages are proposed: 1.5" cage for 1.5" OD Multilog, 111/16", 2 1/8" and 2 7/8" cages for 1 11/16" OD Multilog. This size is the outside diameter of the cage and must be selected according to the Multilog size and the minimum ID of the completion.
Please note that a 1.5" OD Multilog can only measure flow and fast response temperature or pressure and fast response temperature.
Two spinner pitches are proposed: 2" and 5". The pitch represents the fluid movement when the spinner makes one complete revolution. According to the expected fluid velocity, the spinner must be chosen with the following limits:
- minimum measurable velocity: 1 Hz = 1 revolution per second and - maximum measurable velocity: 100 Hz = 100 revolutions per second. The following table gives the part number for each part or each kit.
Description Part number
1.5" OD cage D.30.A.CAG0
2" pitch spinner for 1.5" OD cage D.30.A.SP20
Kit with 1.5" OD cage and 2" pitch spinner D.30.A.FK20
111/16" OD cage D.30.A.CAG1
2" pitch spinner for 1 11/16" OD cage D.30.A.SP21
5" pitch spinner for 1 11/16" OD cage D.30.A.SP51
Kit with 1 11/16" OD cage and 2" pitch spinner D.30.A.FK21 Kit with 1 11/16" OD cage and 5" pitch spinner D.30.A.FK51
21/8" OD cage D.30.A.CAG2
2" pitch spinner for 2 1/8" OD cage D.30.A.SP22
5" pitch spinner for 2 1/8" OD cage D.30.A.SP52
Kit with 2 1/8" OD cage and 2" pitch spinner D.30.A.FK22 Kit with 2 1/8" OD cage and 5" pitch spinner D.30.A.FK52
27/8" OD cage D.30.A.CAG3
2" pitch spinner for 2 7/8" OD cage D.30.A.SP23
5" pitch spinner for 2 7/8" OD cage D.30.A.SP53
Kit with 2 7/8" OD cage and 2" pitch spinner D.30.A.FK23 Kit with 2 7/8" OD cage and 5" pitch spinner D.30.A.FK53
Spinner and cage definition for Multilog
For 1.5 OD Multilog only
A "E" after a battery name or its part number stands for Electrochem cells.
Use Battery Maximum Part number
for type Temperature
°C (°F)
E15 or E15E 150 (300) D.30.B.E15(E)
1.25" OD (SN < 8300)
F15 or F15E 150 (300) D.30.B.F15(E)
1.25" OD 2F15E 150 (300) D.30.B.2F15E
(SN > 8300)
E15 or E15E 150 (300) D.30.B.E15(E)
(SN < 7300) E18 160 (320) D.30.B.E18 F15 or F15E 150 (300) D.30.B.F15(E) (SN > 7300) 2F15E 150 (300) D.30.B.2F15E F18 160 (320) D.30.B.F18 F15 or F15E 150 (300) D.30.B.F15(E) 1" OD gauges H15 150 (300) D.31.B.H15 (SN < 8300) 1" OD gauges J15 150 (300) D.31.B.J15 (SN > 8300)
Battery type list
AMEtrolog
AMEtrolog CC
CG
CG
The symptoms are not presented by order of importance but chronologically as they may happen during the use of the gauge. Some may me obvious, some more complex.
It is assumed that the operator is following the standard procedure to access the gauge (for programming or reading) with the PC.
After clicking the 'Stop & Test' icon or the 'Read Data' icon, the message "Gauge Communication Failure, Gauge not Communicating" is displayed on the screen.
There is no communication between the PC and the gauge for one or more of the following reasons:
The communication port is erroneous.
Check the port to which the HPC cable is connected it must be a serial 9 pin RS-232 port. Check that it is the port indicated in the Configuration|System menu.
The HPC cable is not properly connected to the computer or the gauge.
Check the connections by disconnecting the connectors and re-connecting them. In particular, on gauge side, check that the contacts are clean and in good condition, that the guiding pin of the HPC connector is in place and so that it was not possible to connect it upside down. Check also that the HPC sleeve is well pulled down and that the HPC connector does not rest on its edge but rests flat on the gauge body itself.
The HPC battery is flat.
Replace the battery by a new 9V battery. The HPC cable has failed.
Use another HPC cable to determine for sure the reason of the failure.
The gauge battery is highly passivated. Its voltage does not reach the minimum voltage to start the gauge.
See later in this section for the depassivation of a highly passivated battery.
The gauge battery is flat or missing.
Replace it by a new battery if it is to run a job. To read the gauge data, disconnect the HPC extension from the HPC cable and connect the HPC cable directly to the gauge battery connector in place of the battery. The HPC cable now supplies current directly to the gauge.
The gauge communication system has failed.
Try to access the gauge with a GTI+PM (see below). See below "Electronics troubleshooting". DO NOT TRY TO REPROGRAM IT IF THERE IS DATA STORED INSIDE.
Troubleshooting with PC
The gauge cannot be neither stopped and tested nor read
Symptom: Reasons: #1 Solution: #2 Solution: #3 Solution: #4 Solution: #5 Solution: #6 Solution: #7 Solution:
After clicking the 'Read Data' icon, the PC starts reading the gauge, but after a while the message "Gauge Communication Failure, Gauge not Communicating" is displayed on the screen.
The HPC battery or the gauge battery is nearly flat.
Replace the HPC battery by a new 9 V battery. If the symptom still exists, replace the gauge battery.
If no new gauge battery is available (at well site for example), remove the gauge battery, disconnect the HPC extension from the HPC cable and connect the HPC cable directly to the gauge battery connector in place of the battery. The HPC cable now supplies current directly to the gauge.
After programming the gauge, the message "Gauge Communication Failure, Gauge not Communicating" is displayed on the screen.
The gauge battery is highly passivated. Its voltage does not reach the minimum voltage to start the gauge.
See later in this section for the depassivation of a highly passivated battery.
After programming the gauge, the message "Testing Battery" is displayed on the screen.
The gauge battery is passivated. Its voltage is too low to start data acquisition
Try again to program the gauge. If unsuccessful, see later in this section for the depassivation of a highly p assivated battery.
Communication stops during data reading
Symptom: Reason: Solution:
The gauge does not start after programming
Symptom: Reason: Solution: Symptom: Reason: Solution:
The symptoms here are not presented by order of importance but chronologically as they may happen during the use of the gauge. Some may me obvious, some more complex. It is assumed that the user follows the standard procedure to access the gauge (for programming or reading) with the GTI+PM.
After pressing the "Listen to Gauge" or the "Stop & test gauge" key, the GTI+PM LED's do not lig ht On or only flash.
The GTI+PM batteries are flat or missing.
Place or replace the GTI+PM batteries with four new 1.5 V AA batteries.
The finger pressure on the key is not long enough.
Press at least 1 second on the key for the GTI+PM to start.
After pressing the "Stop & test gauge" key, the message "Unauthorized function" is emitted.
The gauge has been programmed 'Not accessible by GTI'. The gauge can only been stopped and tested by a PC.
After pressing the "Stop & test gauge" key, the message "GTI is not accessing the gauge" is emitted.
There is no communication between the GTI and the gauge for one or more of the following reasons:
The HPC connector is not properly connected to the gauge.
Check the connection by disconnecting the connector and re-connecting it. In particular, check that the gauge HPC contacts are clean and in good condition, that the guiding pin of the HPC connector is in place and so that it was not possible to connect it upside down. Check also that the HPC sleeve is well pulled down and that the HPC connector does not rest on its edge but rests flat on the gauge body itself.
The gauge battery is highly passivated. Its voltage does not reach the minimum voltage to start the gauge.
See later in this section for the depassivation of a highly passivated battery.
The gauge battery is flat or missing. Replace it by a new battery.
The gauge communication system has failed or the GTI+PM has failed.
Try to access the gauge with a PC (see above). See below "Electronics troubleshooting". DO NOT TRY TO REPROGRAM IT IF THERE IS DATA STORED INSIDE.
Troubleshooting with GTI+PM
GTI+PM does not switch On
Symptom: Reason: Solution:
r:
Solution:
GTI+PM does not 'Stop & Test' the gauge
Symptom: Reason: Solution: Symptom: Reasons: #1 Solution: #2 Solution: #3 Solution: #4 Solution:
After pressing the "Start Gauge" key, the gauge does not start (and the vocal message "The gauge is On" is not emitted ).
The GTI+PM is unable to start the gauge for one or more of the following reasons:
The memory is full.
Read the gauge first or make sure the gauge has been read. Then re-program the gauge.
The gauge battery is low or passivated.
See later in this section for the depassivation of a highly passivated battery.
After pressing the "Programme Validation" key twice (according to the normal procedure), the gauge does not start (and the vocal message "The gauge is On" is not emitted ).
The gauge battery is low or passivated.
See later in this section for the depassivation of a highly passivated battery.
After pressing the "Listen to Gauge" key, the message "GTI is not accessing the gauge" is emitted.
There is no communication between the GTI and the gauge for one or more of the following reasons:
The HPC connector is not properly connected to the gauge.
Check the connection by disconnecting the connector and re-connecting it. In particular, check that the gauge HPC contacts are clean and in good condition, that the guiding pin of the HPC connector is in place and so that it was not possible to connect it upside down. Check also that the HPC sleeve is well pulled down and that the HPC connector does not rest on its edge but rests flat on the gauge body itself.
The gauge is not On.
Press the "Stop & test gauge" key instead. The gauge battery is low or passivated.
See later in this section for the depassivation of a highly passivated battery.
The gauge battery is flat or missing. Replace it by a new battery.
The gauge communication system has failed or the GTI+PM has failed.
Try to access the gauge with a PC (see above). See below "Electronics troubleshooting". DO NOT TRY TO REPROGRAM IT IF THERE IS DATA STORED INSIDE.
GTI+PM does not start the gauge
Symptom: Reasons: #1 Solution: #2 Solution: Symptom: Reason: Solution:
GTI+PM does not 'Listen to gauge'
Symptom: Reasons: #1 Solution: #2 Solution: #3 Solution: #4 Solution: #5 Solution:
The battery is not able to start a gauge.
It is extremely difficult to make a difference between a flat battery and a highly passivated battery. Both give the same low voltage when loaded. A battery that will not improve after the depassivation procedure must be considered as flat.
The battery has been stored for a long time or it has not been used quickly after the last operation or it has been disconnected from the gauge (or the gauge has been stopped) before the battery had cooled down.
Use the depassivation tool supplied by Metrolog . Connect the depassiver corresponding to the battery for a few minutes.
For 10.5 V batteries (E or H), the battery indicator should reach the green zone after a few minutes.
For 7 V batteries (F or J), the battery green LED should be On after a few minutes.
If a battery does not depassivate after a few minutes, there is no need to persist and the battery must be dis posed.
See also the procedure described in the MetroWin help file.
Depassivation of a highly passivated battery
Symptom: Note:
Reason:
Solution:
WARNING
There is no need to and you should not depassivate battery based on Electrochem c ells.Battery with Electrochem cells can be recognized by the E after their name: F15E for example.
A few checks can be performed in the field if communication with a gauge is impossible. The procedure below shows how to detect a broken wire or a broken clock quartz. If all these checks do not locate the source of the problem, please contact Metrolog.
(Figure T1 – AMEtrolog wiring) (Figure T2 – CGM wiring)
(Figure T3 – 1" OD AMEtrolog wiring) (Figure T4 – Multilog wiring)
(Figure T5 – HPC contacts wiring) (Figure T6 – Gauge connector wiring)
For all the below checks, the gauge must be open and the MetroWin software must be running on a PC.
There is no communication with the gauge with the HPC interface cable. The gauge communicates with the GTI+PM. All other possible reasons have been eliminated by going through the 'Troubleshooting with PC' procedure as described above.
The HPC cable has failed or an HPC interface cable wire is broken. Connect the HPC interface cable to the PC. Do not connect it to the gauge since this check is performed on the cable alone. Connect the two probes of a voltmeter to the two pins of its HPC plug.
Check that a 12 V pulse appears during at least 1 s when clicking the 'Stop & Test' icon.
If it does not appear, check all wire connections between the RS232 plug and the HPC interface box and between the HPC interface box and the HPC plug.
There is no communication with the gauge through the HPC contacts. The gauge communicates through the battery connector. A wire connecting an HPC contact to the circuit board is broken. Check the integrity of the HPC connection wires by checking them with an ohmmeter between the HPC contacts and the ci rcuit board.
Electronics t roubleshootin
Symptom: Reason: Action: Symptom: Reason: Action:There is no communication with the gauge. All other possible reasons have been eliminated by going through the 'Troubleshooting with PC' procedure as described above.
A wire connecting the battery to the circuit board is broken.
Disconnect the battery from the gauge. Check the integrity of the gauge connector wires by checking them with an ohmmeter between the gauge connector and the circuit board.
Re-soldering the wire or replacing it would generally solve the problem.
The clock quartz is broken (generally after a very strong shock). Connect the gauge, connected to its battery (depassivated), to the PC via the HPC interface cable. If no battery is available, connect the interface cable in place of the battery by removing the HPC extension (see the MetroWin help file for detail).
Use an oscilloscope with a 10:1 ratio probe (or a frequency meter). Connect the oscilloscope ground to the circuit board ground (JP7) and touch one of the leg of the clock quartz with the oscilloscope probe. Click the "Stop&Test" icon: a 1.843 MHz frequency should be measured.
If the frequency does not appear, replace the clock quartz (D.00.M.QZ1).
The new clock quartz must be placed on a thin layer of silicone foam (for shock absorption) and held in place mechanically. Its legs must be protected with Teflon isolation tubing and must be bent in a way to prevent any contact (short circuit) with the electronics housing. Symptom:
Reason #1: Action:
Reason #2: Action:
8 0 0 0 Electronics housing (D.30.P.HOU) CHC 6.32 screw (4) n° 113 O-ring (2) n° 022 O-ring (2) n° 022 O-ring CHC 6.32 screw Bottom nose (D.30.P.NOSE) Bottom nose adapter (D.30.P.BNA) Locking ring (D.30.P.LOCK) HPC sleeve (D.30.P.SLEE) HPC contact (2) (D.30.P.HPCC)
8 3 0 0 Electronics housing (D.32.P.HOU) CHC 6.32 screw (4) n° 113 O-ring (2) n° 118 O-ring (2) n° 022 O-ring CHC 6.32 screw Bottom nose (D.30.P.NOSE) Bottom nose adapter (D.32.P.BNA)
HPC sleeve (D.30.P.SLEE) HPC contact (2) (D.30.P.HPCC)
7 0 0 0 Electronics housing (D.30.P.HOU)
(D.30.P.HOUQ with relief valve)
n° 118 O-ring (4) CHC 6.32 screw (4) n° 022 O-ring (2) n° 022 O-ring (2) Bottom nose (D.30.P.NOSE) Bottom nose adapter (D.30.P.BNAQ) HPC sleeve (D.30.P.SLEE) HPC contact (2) (D.30.P.HPCC)
Quartz sensor holder (D.30.P.QSH ) CGM locking ring (D.30.P.LOCQ)
7 3 0 0 Electronics housing (D.32.P.HOU)
(D.32.P.HOUQ with relief valve)
n° 118 O-ring (4) CHC 6.32 screw (4) n° 118 O-ring (2) n° 022 O-ring (2) Bottom nose (D.30.P.NOSE) Bottom nose adapter (D.32.P.BNAQ) HPC sleeve (D.30.P.SLEE) HPC contact (2) (D.30.P.HPCC)
Quartz sensor holder (D.32.P.QSH ) CGM locking ring (D.30.P.LOCQ)
n° 118 O-ring (4) CHC 6.32 screw (5) n° 113 O-ring (2)
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Bottom nose (D.30.P.NOSE) Bottom nose adapter (D.32.P.BNAQ) Quartz sensor holder (D.32.P.QSH )Electronics housing (D.31.P.HOU) 8 0 0 0 CHC 4.40 screw Bottom nose (D.31.P.NOSE) Bottom nose adapter (D.31.P.BNA) Locking nut (D.31.P.LOCK) HPC sleeve (D.31.P.SLEE) HPC contact (2) (D.30.P.HPCC) n° 114 O-ring (4) n° 113 O-ring n° 018 O-ring (2) n° 109 O-ring n° 018 O-ring
