What can you expect?
This is the “oil level sensors” section of the overall “Hella sensors and actuators” catalogue. The sensors can be used for a wide range of applications from the acquisition of the minimum oil level to the continual measurement of the oil level. You know yourself how broad and varied the range of applications for these parts is – both for specific areas and products. With this summary we would like to give you the opportunity to discover how you can use Hella quality in your area of responsibility. This can certainly be worth your while, because the overall quality of a product always depends on the quality of its individual part.
About the contents
This brochure contains the key technical data required to evaluate a sensor, its application use and integration in an overall system. The summary at the bottom of this page and on the right show you examples of areas where Hella oil level sensors and actuators can be used. These are only suggestions, of course.
About Hella oil level sensors and actuators
They are manufactured in large-scale production in high Original Equipment Manufacturer quality for the automotive industry. The range of uses covers passenger cars, trucks and special vehicles such as tractors, construction machinery, fork lift trucks, mobile homes and buses. Their universality makes them suitable for a wide range of industrial applications as well, of course – e.g. in automation, mechanical engineering, environmental engineering and the field of heating/ sanitary equipment.
Subject to technical and factual modifications. Hella does not accept any liability for the function of your overall system, only for the components described and their product features.
Overview of variants
Level sensors Examples in vehicles Examples for possible applications in the industrial field Recording or measuring
levels.
Monitoring the level in windscreen washer fluid tanks (washer fluid supply switches). Monitoring or measurement of the level of motor oil in the engine (oil level switch or oil level sensors).
Monitoring or measurement of the level (water or oil) in supply tanks, oil tanks, wind power plants, block heat and power plants, stationary motors etc.
Use our customer support
Contact us by phone or e-mail and we can discuss all the detailed technical aspects with you. Naturally, we can support you in your choice of components and its electrical integration. We can send you sample sensors and actuators on request.
What we still have to tell you
We are sure you understand that Hella cannot accept liability for the function of the systems Hella sensors and actuators are used in. Our liability only covers the components described and their product characteristics.
Phone + 49 29 41 38-3 11 74 Fax + 49 29 41 38-4 73 11 74
www.hella.com/electric-electronics-components E-Mail: [email protected]
Application overview
Solutions for Special OE Engine Manufactures
NTC temperature sensors
Measurement of liquid and air temperature For universal use for measuring the temperature
of liquids
Suitable for media such as oils, coolants and fuels Measuring range -40 °C to +155 °C
New sensor variant for charge air temperature measurement with a reaction time of ≤ 15 sec
Universal pressure sensors
Pressure measurement for oil and fuel Pressure measurement
from 0 to 10 bar
Can be used with a broad range of diff erent liquids and gases Two thread sizes: M14 and M18
Ultrasonic oil level and temperature sensor
For continual oil level and temperature measurement Continual measurement of the level of motor
oil in the static and dynamic range.
Compact sensor architecture with a multi-chip module Integrated temperature sensor
Angle position sensor
Accelerator sensor angle measurement Individual or passive sensors
High precision thanks to internal 14 bit resolution
High thermal stability and linearity Insensitive to magnetic fi elds
Accelerator pedal
Upright and pendant
Contact-less measuring system Slim and sturdy design
Simple mechanical connection Passive output signal
High measuring accuracy and resistance to interference
Oil level sensor
Acquisition of oil level Compact sensor design Installed in the oil pan Simple electrical connection
Product features
Compact sensor Installed in the oil pan Simple electrical connection Principally used for motor oil Application in further media possible
Structure and function
The oil level switch is made up of a Reed contact and a float which is actuated by its buoyancy behaviour depending on the level of fluid. When the Reed switch is opened, this indicates that the level has fallen below the fixed switching point of the oil level switch. Since the oil level switch is closed above the minimum level, this can be used to diagnose a faulty function. The oil level switch signal is evaluated via a customer-specific evaluation algorithm which is stored in the vehicle control unit/controller. The minimum warning is triggered by a defined switch-off length of the signal within the evaluation algorithm.
This sensor variant can be installed on the bottom of the oil pan. The oil level switch is usually situated on a ledge in the oil pan or on an additional holder, so that the minimum level of the application can be adapted to that of the oil level switch.
Acquisition of fluid levels (static or dynamic)
Use
This level switch is used to monitor levels. Its main field of application is the monitoring of the level of motor oil and thus ensuring there is a minimum filling level in the static range (engine at a standstill) or dynamic range (engine in operation) in various vehicle motors including tractors, fork lift trucks, construction machinery, special vehicles etc.. In addition, the straightforward application allows the sensor to be used in industrial applications to guarantee minimum levels are never exceeded.
Tank (e. g. Oil pan) Connector
Switching point
Static or dynamic minimum level
Overview of variants
Installation Two-way connector Material Part number Technical data on page
Interior, with 190 mm cable (e.g. on bottom of oil pan)
Delphi ZFW2-141 or Bosch ZFW2-83
PA6, 6T Ultramid TKR 4350, black (housing)
6PR 232 000-001 6
Interior, with 275 mm cable (e.g. on bottom of oil pan)
Delphi ZFW2-141 or Bosch ZFW2-83
PA6, 6T Ultramid TKR 4350, black (housing)
6PR 232 000-011 8
Acquisition of fluid levels (static or dynamic)
Part number 6PR 232 000-001
Technical dataSwitchpoint 29 ± 1 mm
Max. slant of the
oil level switch ≤ 8°
Supply voltage 5 V ± 5 % or 14.5 V ± 5 %
Switching current min. 5 mA / typ. 12 mA / max. 20 mA
Pin 1 Signal
Pin 2 Ground
Voltage drop max. 2 mV
Insulation resistance > 1 MΩ at 500 V DC voltage for 60 sec. Dielectric strength
up to 500 Veff. With AC voltage (50 Hz) and 2 sec.
Permanent operating temperature -40 °C to +150 °C
Qualified oils Standard motor oils (e. g. Shell Helix Ultra 5W30)
Resistant to
Exhaust gases, dust, diesel fuels in accordance with DIN EN 590, rapeseed oil (E DIN 51606), lead-free fuels (DIN EN 339), brake fluid DOT4, hydraulic oil Pentosin CHF 11S
Service life 50,000 switching cycles
Storage temperature -40 °C to +70 °C
Operating pressure -5 kPa to 0 kPa
Protective rating of the connector seal
to the oil pan
IP 69K
Weight ≤ 60 g
Cable length 190 + 15 mm
Cable cross-section 2 x 0.8 mm
Cable insulation material Polyester Betax-HX FL 33 x 33 x 109
Individual wire tin-plated, oil-resistant
Connector housing material PA66 Zytel 70G35 HSLX black BK 357 Original connector material ACM or AEM, black, Shore hardness 70 ± 5 Oil level switch housing material PA6, 6T Ultramid TKR 4350, black Base plate material
oil level switch PA66 Zytel 70G35 HSLX, black, BK 357
Bushing material CuZn 39Pb3 R430 EN12164
Contact material Bd EN 1652 O. 6 CuNi10Fe1Mn
Float material PA6 Ultramid B3S, natural coloured
Reed contact Contact wire alloy 52 F52 %Ni48 %, Ri = 100 m Ω max. Magnet material Hard ferrite 24 / 23, M = 10.33 ± 0.9 x 10 -6 Vscm Air-tightness of connector up to 50 ± 5 kPa oil pressure
Connector Bosch compact connector 1928 497 999 E
Pin coating
galv. silver-coated 2701 according to Hella Norm 47102-6 (layer thickness according to DIN 50987 min 3 μm Ag) Two-way connector1) Delphi ZFW2-141 or Bosch ZFW2-83
Technical data
Vibration resistance (carried out in succession) Sinus-shaped (in accordance with IEC 60068-2-6) greatest offset at 100 Hz: 0.177 mm,
200 Hz: 280 m/s2, 220 Hz: 280 m/s2, 240 Hz: 160 m/s2,
320 Hz: 160 m/s2, 340 Hz: 125 m/s2, 440 Hz: 125 m/s2
Broadband noise (in accordance with IEC 60068-2-64) Eff. total acceleration = 170 m/s2
10 Hz: 10 (m/s2)2/Hz, 100 Hz: 10 (m/s2)2/Hz,
300 Hz: 0.51 (m/s2)2/Hz, 500 Hz: 45.6 (m/s2)2/Hz,
1500 Hz: 15.26 (m/s2)2/Hz
Magnetic properties must be checked for every application.
Ø7 6.5 50 True length 190+15 15 Ø24+ 0.05 1.7 ± 0.1 30º ± 0.3 12.1 ± 0.1 Ø50
Mounting Hole for Plughousing
Mounting point for switch
Area sets free for mounting of the plug
M6 7 100º 14 min. 15 50 ± 0.2
Mounting point for switch Ø34 40.6 Switchpoint 29 37 Ø 4.5 Technical drawing
Acquisition of fluid levels (static or dynamic)
Part number 6PR 232 000-011
Technical dataSwitchpoint 29 ± 1 mm
Max. slant of the
oil level switch ≤ 8°
Supply voltage 5 V ± 5 % or 14.5 V ± 5 %
Switching current min. 5 mA / typ. 12 mA / max. 20 mA
Pin 1 Signal
Pin 2 Ground
Voltage drop max. 2 mV
Insulation resistance > 1 MΩ at 500 V DC voltage for 60 sec. Dielectric strength
up to 500 Veff. With AC voltage (50 Hz) and 2 sec.
Permanent operating temperature -40 °C to +150 °C
Qualified oils Standard motor oils (e. g. Shell Helix Ultra 5W30)
Resistant to
Exhaust gases, dust, diesel fuels in accordance with DIN EN 590, rapeseed oil (E DIN 51606), lead-free fuels (DIN EN 339), brake fluid DOT4, hydraulic oil Pentosin CHF 11S
Service life 50,000 switching cycles
Storage temperature -40 °C to +70 °C
Operating pressure -5 kPa to 0 kPa
Protective rating of the connector seal
to the oil pan
IP 69K
Weight ≤ 60 g
Cable length 275 + 15 mm
Cable cross-section 2 x 0.8 mm
Cable insulation material Polyester Betax-HX FL 33 x 33 x 109
Individual wire tin-plated, oil-resistant
Connector housing material PA66 Zytel 70G35 HSLX black BK 357 Original connector material ACM or AEM, black, Shore hardness 70 ± 5 Oil level switch housing material PA6, 6T Ultramid TKR 4350, black Base plate material
oil level switch PA66 Zytel 70G35 HSLX, black, BK 357
Bushing material CuZn 39Pb3 R430 EN12164
Contact material Bd EN 1652 O. 6 CuNi10Fe1Mn
Float material PA6 Ultramid B3S, natural coloured
Reed contact Contact wire alloy 52 F52 %Ni48 %, Ri = 100 m Ω max. Magnet material Hard ferrite 24 / 23, M = 10.33 ± 0.9 x 10 -6 Vscm Air-tightness of connector up to 50 ± 5 kPa oil pressure
Plug Bosch compact connector 1928 497 999 E
Pin coating
galv. silver-coated 2701 according to Hella Norm 47102-6 (layer thickness according to DIN 50987 min 3 μm Ag) Two-way connector1) Delphi ZFW2-141 or Bosch ZFW2-83
Technical data
Vibration resistance (carried out in succession) Sinus-shaped (in accordance with IEC 60068-2-6) greatest offset at 100 Hz: 0.177 mm,
200 Hz: 280 m/s2, 220 Hz: 280 m/s2, 240 Hz: 160 m/s2,
320 Hz: 160 m/s2, 340 Hz: 125 m/s2, 440 Hz: 125 m/s2
Broadband noise (in accordance with IEC 60068-2-64) Eff. total acceleration = 170 m/s2
10 Hz: 10 (m/s2)2/Hz, 100 Hz: 10 (m/s2)2/Hz,
300 Hz: 0.51 (m/s2)2/Hz, 500 Hz: 45.6 (m/s2)2/Hz,
1500 Hz: 15.26 (m/s2)2/Hz
Magnetic properties must be checked for every application.
1) These accessories are not supplied as part of the sensor. To be purchased from Bosch/
Dimensions Ø7 6.5 50 True length 190+15 15 Ø24+ 0.05 1.7 ± 0.1 30º ± 0.3 12.1 ± 0.1 Ø50
Mounting Hole for Plughousing
Mounting point for switch
Area sets free for mounting of the plug
M6 7 100º 14 min. 15 50 ± 0.2
Mounting point for switch Ø34 40.6 Switchpoint 29 37 Ø 4.5
Principle sketch of the 5 V version Principle sketch of the 12 V version
Product features
Continual measurement of the level of motor oil in the static and dynamic range
Compact sensor architecture with a multi-chip module Integrated temperature sensor
Immediate measurement after switch-on
Structure and function
The sensor architecture of the oil level sensor PULS (Packed Ultrasonic Level Sensor) comprises one single multi-chip module which integrates the ultrasonic and temperature sensor as well as an ASIC (Application Specific Integrated Circuit). The
compactness of our sensors increases their impact and vibration resistance compared with sensors that are fitted with numerous electronic components. The ultrasonic sensor integrated in the multi-chip module transmits a signal that is reflected by the bounding surface between the motor oil and the air. The signal’s running time is measured and the filling level is calculated depending on the speed of sound in the medium. The attenuation cup attached above the multi-chip module serves to calm the medium (particularly) in the dynamic measuring range. The attenuation cup has openings on the base and at the tip which allow permanent oil flow.
Measurement of fluid levels (static and dynamic)
Static measurement range 129 mm
Dynamic measurement range 96 mm Transition zone
Damping cup
Example of dynamic oil minimum Example of static oil minimum
Static or dynamic measurement range 45 mm Transition zone
Damping cup
Example of static or dynamic oil minimum
Use
In vehicles, oil sensors ensure that the engine cannot work unnoticed with too little oil. The tried-and-trusted technology of the ultrasonic sensors works on the delay time principle and records the filling level continuously during the trip. During engine operation (dynamic measuring range) the filling level is
significantly lower than when the engine is at a standstill (static measuring range). A dipstick only records the oil level of mobile engines in the static range. This oil level sensor can measure the oil level continuously, i.e. both in the dynamic and in the static range. It thus provides information about the oil level within the whole period of engine operation, which can often be several hours in the case of construction machinery, tractors and fork lift trucks. The sensor monitors the oil level continuously during the entire engine operation, which means the oil level can be prevented from falling below the minimum level during operation, which in turn means the oil film is not interrupted (which would lead to engine damage). Secondary influences such as the slope of the vehicle, lateral and longitudinal accelerations, are
compensated by the vehicle control unit calculating a mean value.
Temperature
Analysis
Control unit /
pull up (e.g. 3.9/10k Omh) 5V/12V Oil Level A 15 A 31 A 15 31 Installation
The sensor has been designed for vertical installation from below, directly into the bottom of an oil pan. The oil level sensor is usually located on a ledge in the oil pan to protect the sensor base. This installation location in connection with the ventilation opening in the cap make a permanent oil flow possible, preventing sludge accumulation within the attenuation cup.
Block circuit diagram
Overview of variants
Installation Supply voltage Measuring range Part number Technical data on page
From below 12 V static 129 mm,
dynamic 96 mm
6PR 009 622-051 12
Measurement of fluid levels (static and dynamic)
Part number 6PR 009 622-051
GASKET MUST BE ONLY USED ONCE IN PRESSED CONDITION
VENTILATION OPENING DYNAMIC MEASUREMENT RANGE 96 mm STATIC MEASUREMENT RANGE 129 mm Mechanical offset 18 mm 147 mm Ø 60 Ø 110° Ø 130° Ø 10° 3x Ø 6.6 Technical data
Measuring range (static) 129 mm
Measuring range (dynamic) 96 mm
Mechanical offset 18 mm
Accuracy (absolute)1) ± 3 mm
Accuracy in the transition area2) of the
attenuation cup -2 to +4 mm
Reaction time for level measurement < 1 ms
Maximum slope of the sensor
(installation) 4° in all directions
Sensor slope (operation, static) (operation, dynamic)
min. 10° min. 20° Qualified oils Standard motor oils (e.g. Castrol 10W30)
Nominal voltage 12 V
Voltage range 9 V to 16 V
Temperature measuring range -40 °C to +160 °C
Accuracy (between 60 °C and 120 °C)3) ± 2 K
Reaction time for temperature
measurement < 1 ms
Output PWM (open collector, lowside)
Signal output voltage (high) (low)
corresp. to voltage range max. 1 V Signal output current (high)
(low, max.) (low, ref.)
20 μA 10 mA 2 mA
Load (pull-up resistor) 1.6–10 kΩ
Current consumption 6 mA (typical)
Current consumption (peak)
(pulse generation) max. 50 mA
Output voltage 5 V... UB Operating temperature -40 °C to +150 °C Storage temperature -40 °C to +140 °C EMC on request Temperature resistance (IEC 60068-2-2) 750 h at 150 °C
Resistant to Brake fluid, petrol, salt, battery filling agent Vibration resistance (IEC 60068-2-6)
Direction Duration Temperature range Test environment Speed of temperature change No measurement during the test
in three directions (X, Y, Z) t = 216 hours, 72 hours per direction -40 °C to +140 °C Oil (Castrol SLX R-tec); level ~ 21 mm 1K/min (25 cycles per direction) 10–50 Hz -> 1 g 50–250 Hz -> 15 g 250–2500 Hz -> 35 g Shock resistance (IEC 60068-2-27)
Acceleration Duration Number of cycles Test environment ± 100 g 10 ms 6/axis 20 °C air No measurement during the test
Technical data
Maximum operating pressure: Sensor only contains electronic components and no glass components such as Reed contact. The typical pressure in an oil pan is around 0.5 bar. The functional ability of the sensor is independent of the ambient pressure. The sensor seal is the same as with a pressure sensor. For this reason, theoretical ambient pressures of up to 40 bar are possible.
Housing material Polyamide 66, 36 % fibreglass
Sealing ring AEM 70 ± 5 Shore A (ethylene acrylate rubber)
Pin material CuNi10
Pin coating Silver
Two-way connector4) Kostal no. 09 44 13 82
Protective rating (connector) IP 69K
Service life 15 years or 300,000 km
1) In the temperature range from 0 °C to 150 °C, ± 2 mm accuracy
at ≤ 100 mm and 30 °C to 120 °C
2) In the temperature range from 30 °C to 150 °C
3) ± 3K in the temperature range – 40 °C to 60 °C and 120 °C to 160 °C
4) These accessories are not supplied as part of the sensor. To be purchased from Kostal.
TTemp. 22ms 20% T1 Temperature 10ms 920ms Startup/ Checksum T=110ms 22ms T=110ms TLevel T T2 Level 68,2ms T=1210ms T 3 T1 T3 1141,8ms =1000ms TSignal 20% 80% 80% Start Repetition Ø 40.5 17 126.1 Pin 1 terminal 15 VBatt
Pin 3 OUTPUT Pin 2 terminal 31 GND
16.25
12.25
Technical drawing
Star check sum = 920 ms PWM blocking period T = 110 ms PWM blocking period T3 = 68,2 ms (fixed)
Total PWM blocking period TSignal = 1000 ms
Pause signal 670 ms
Tolerance of all time signals (from PWM cycle) ± 10 %
Level (mm) = [(T2/T-0.2) x 215 + 12.66] x + 5.34
T 110 Temp (°C) = (T1/T - 0.32)
0.003
Measurement of fluid levels (static and dynamic)
Level Duty Cycle (DC2)
DC 18.0mm 80% 88ms 20% 22ms T2(Tlevel) 147mm
Level Duty Cycle (D2)
20 % of the PWM blocking period T1 (22 ms)
corresponds to the lowest measuring point of the measuring range of -40 °C
80 % of the PWM blocking period T1 (88 ms)
corresponds to the highest point of the measuring range of 160 °C
20 % of the PWM blocking period T2 (22 ms)
corresponds to the lowest measuring point of the measuring range of 18 mm
80 % of the PWM blocking period T2 (88 ms)
corresponds to the highest point of the measuring range of 147 mm
Temperature Duty Cycle (DC1)
DC -40ºC 80% 88ms 20% 22ms T1(TTemp) +160ºC
Temperature Duty Cycle (D1)
All the calculation data only apply for standard motor oil on account of the dependence between ultrasonic speed and density of the medium.
Consequently, the above calculation only works for standard motor oils (e.g. Castrol 10W30). In the case of other measurable non-conductive media, the calculation must be checked in the
Temperature evaluation (T1 Temp)
Oil filling level evaluation (T2 level)
Sensors
Level sensors
Measurement of fluid levels (static and dynamic)
Part number 6PR 009 622-041
Ø 60 Ø 110° Ø 130° Ø 10° 3x Ø 6.6 Technical dataMeasuring range (static/ dynamic) 45 mm
Mechanical offset 20.9 mm
Accuracy (absolute)1) ± 3 mm
Accuracy in the transition area2)
of the attenuation cup -2 to +4 mm
Reaction time for level measurement < 1 ms
Maximum slope of the sensor
(installation) 4° in all directions
Slope of the sensor (operation, static) (operation, dynamic)
min. 10° in. 20° Qualified oils Standard motor oils (e. g. Castrol 10W30)
Nominal voltage 5 V
Voltage range 4.9 V to 9 V
Temperature measuring range -40 °C to +160 °C
Accuracy (between 60 °C and 120 °C)3) ± 2 K
Reaction time for temperature
measurement < 1 ms
Output PWM (open collector, lowside)
Signal output voltage (high) (low)
corresp. to Voltage range max. 1 V Signal output current (high)
(low, max.) (low, ref.)
20 μA 10 mA
2 mA
Load (pull-up resistor) 1.6–10 kΩ
Current consumption 6 mA (typical)
Power consumption (peak)
(pulse generation) max. 50 mA
Output voltage 5 V... UB Operating temperature -40 °C to +150 °C Storage temperature -40 °C to +140 °C EMC on request Temperature resistance (IEC 60068-2-2) 750 h at 150 °C
Resistant to Brake fluid, petrol, salt, battery filling agent Vibration resistance (IEC 60068-2-6)
Direction Duration Temperature range Test environment Speed of temperature change No measurement during the test
in three directions (X, Y, Z) t = 216 hours, 72 hours per direction -40°C to +140°C Oil (Castrol SLX R-tec); level ~ 21 mm 1K/min (25 cycles per direction) 10–50 Hz -> 1 g 50–250 Hz -> 15 g 250–2500 Hz -> 35 g Shock resistance (IEC 60068-2-27)
Acceleration Duration Number of cycles ± 100 g 10 ms 6/axis Technical data
Maximum operating pressure: Sensor only contains electronic components and no glass components such as Reed contact. The typical pressure in an oil pan is around 0.5 bar. The functional ability of the sensor is independent of the ambient pressure. The sensor seal is the same as with a pressure sensor. For this reason, theoretical ambient pressures of up to 40 bar are possible.
Housing material Polyamide 66, 36 % fibreglass
Sealing ring AEM 70 ± 5 Shore A (ethylene acrylate rubber)
Pin material CuNi10
Pin coating Silver
Two-way connector4) Kostal no. 09 44 13 82
Protective rating (connector) IP 69K
Service life 15 years or 300,000 km
1) In the temperature range from 0 °C to 150 °C, ± 2 mm accuracy
at ≤ 100 mm and 30 °C to 120 °C
2) In the temperature range from 30 °C to 150 °C
3) ± 3K in the temperature range – 40 °C to 60 °C and 120 °C to 160 °C
TTemp. 22ms 20% 10ms 920ms Startup/ Checksum T=110ms 22ms T=110ms TLevel 68,2ms T=1210ms T 3 1141,8ms =1000ms TSignal 20% 80% 80% Start Repetition Technical drawing terminal terminal
Star check sum = 920 ms PWM blocking period T = 110 ms PWM blocking period T3 = 68,2 ms (fixed)
Total PWM blocking period TSignal = 1000 ms
Pause signal 670 ms
Tolerance of all time signals (from PWM cycle) ± 10 %
Temp (°C) = (T1/T - 0.32)
0.003
Sensors
Level sensors
Measurement of fluid levels (static and dynamic)
Level Duty Cycle (DC2)
DC 18.0mm 80% 88ms 20% 22ms T2(Tlevel) 147mm
Level Duty Cycle (D2)
20 % of the PWM blocking period T1 (22 ms)
corresponds to the lowest measuring point of the measuring range of -40 °C
80 % of the PWM blocking period T1 (88 ms)
corresponds to the highest point of the measuring range of 160 °C
20 % of the PWM blocking period T2 (22 ms)
corresponds to the lowest measuring point of the measuring range of 20.9 mm
80 % of the PWM blocking period T2 (88 ms)
corresponds to the highest point of the measuring range of 65.9 mm
Temperature Duty Cycle (DC1)
DC -40ºC 80% 88ms 20% 22ms T1(TTemp) +160ºC
Temperature Duty Cycle (D1)
All the calculation data only apply for standard motor oil on account of the dependence between ultrasonic speed and density of the medium. Consequently, the above calculation only works
Temperature evaluation (T1 Temp)
Oil filling level evaluation (T2 level)
Basic information about the signal duration
Level (mm) = [(T2(T-0.2) x 75 + 15.56] x + 5.34
T 110
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Telefon + 49 29 41 38-3 11 74 Telefax + 49 29 41 38-4 73 11 74
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