Petroservices has many systems for data acquisition that guaranty accurate and reliable real time data acquisitions, among these systems are the followings:
1. DAQ TVR 60-8A:
DAQ TVR60-8A is a fast and reliable data acquisition unit that is designed to support: • DAQ TVR60-8A supports up to 60 analog input channels, 8 digital input channels and
one up/down counter for draw work.
• Analog to digital conversion of slowly changing positive current signals on 60 current channels.
• Measuring of angular move of two-phase draw works revolutions sensor (DL 100A or analogues) and conversion of the obtained values into current or voltage.
• Measuring of frequency on eight channels (pulse/sec) with further conversion of the obtained values into current or voltage.
• Definition of conditions on eight channels.
• Closing/unclosing of normally open “dry” contacts on eight channels. • Power supply to sensors (barriers) + 24V.
• Digital data transfer to the unit computer (Com 3) via RS-422/485 interface in conformity with the exchange protocol.
• Digital data transfer to the unit computer (Com 4) via RS-422/485 interface and power supply to Rig Monitor + 24V.
• Manual entry of traveling block position.
• Manual entry of calibration parameters for traveling block.
• Manual entry of type of outgoing analog signal (current or voltage). • Manual entry of digital output channels.
• Manual entry of output values of analog channels. • Monitoring of traveling block position.
• Monitoring of frequency values on channels. • Monitoring of conditions values on channels. • Monitoring of digital (out) channels.
• Monitoring of output values in analog channels. Data acquisition unit “DAQ
TVR 60-8A” is equipped with the keyboard beeper and a password protection against unauthorized change of data. For more detailed information about DAQ TRV 60-8A refers to PetroServices mud
2. Philips Transokomp 350:
Today many data acquisition networks are increasingly being linked together. More than ever before, large volume, high speed, and accurate, easy-to-use communication functions are essential in many disciplines.
In the world of measurement and control where the number of measurement points has increased sharply, the ability to acquire information from a large number of points easily and economically is crucial. Interfacing to a personal computer allows simplified utilization of the information while improving quality and efficiency. Philips TK 350 is based on a unique, new concept to meet these needs. The art of measurement is revolutionized by Philips TK 350, which integrates functions of conventional recording and data logging.
Philips Transokomp 350 multi channels computerized recorder can record and measure from small-scale 10-ch data up to widely distributed 300-ch multi-point data. The number of measurement points can be expanded up to a maximum of 300-ch by connecting up to six subunits (DS400/DS600) to a main unit (DR232/242). Using dedicated extension cables between units, interconnections can be extended up to 500 m. Since measured objects scattered over a wide area can be wired fast and with a minimum of wiring, a flexible, extensive measurement system can be configured.
The input modules to be incorporated in the Philips TK 350 can be selected from the following, to suit your measurement conditions:
• mA-input Module
This module can directly measure DC currents ranging from -20 mA to 20 mA since it contains shunt resistors. It cannot be connected to a system's main unit.
• Alarm module
This module can output alarm signals as contact signals. The module can be connected to the main unit or the subunit.
• DI/DO module
This module allows a signal to be output in the case of alarm, failure, or chart end and a remote control signal for the product to be input. The module can be connected to the main unit or the subunit but only one module in all units.
• Communication interface module
This module is necessary when communicating with a personal computer. Measurement conditions can be set and data acquired via the communication interface (GP-IB, RS-232-C, etc.). This module can only be connected to the main unit.
3. Siemens SIREC D400:
Siemens SIREC D400 is a chartless high-end display recorder in 300 mm x 300 mm format with 12.1" Color- TFT-Display that supports 16 up to 48 analog channels and up to 48 digital channels.
Display:
With more than 256,000 colors makes it easy to interpret process data and take action with the intuitive bar charts, digital values, trends or customized displays. The heavy duty durable touch screen provides easy data entry and rapid navigation though the menus. The touch screen operator interface provides fast, easy access to the recorder menus making set up and data analysis quick and efficient
Data storage:
On-board non-volatile memory - up to 1850 Mega Byte in addition to removable Compact flash and USB storage with no moving parts all solid- state data storage.
Data export: Removable compact flash and USB flash storage device provides multiple
data storage alternatives. Data is stored in a secure binary encrypted format, with the recorder’s configurations, providing added security of the data files.
Soft alarms: 6 "software" alarms per pen are easily set up to display and record selected
out-of-limit conditions. These can be tied to the relay or digital outputs to activate the user’s external equipment.
Independent display chart speeds and logging rates: Logging rates can be programmed
completely separate from the chart display speed, allowing the data to be displayed and stored at the rates that best suits the application.
Fuzzy logging: This standard feature provides a unique method to increase the storage
capacity of the recorder. The data is monitored to determine changes in process data; if no changes are observed data is logged periodically. If data is changing rapidly, it is recorded normally at the programmed rate. By not logging data that is static, data compression of up to 100:1 or more can be achieved saving valuable memory.
Pulse inputs: The 8 Digital I/O option card has 4 channels that can be set as pulse inputs
(first 4 channels). The operating frequency for pulse inputs on the Digital I/O card is 1 kHz max.
Communications:
The recorder supports FTP, Mod bus TCP/IP (slave mode), Web and Email over Ethernet (DHCP standard) communications port and Modbus RTU (slave mode) via an RS485 port. USB ports allow the use of an ASCII barcode reader. Email sent to your network connected PC triggered by an Alarm or an Event.
Data security:
Total data integrity: Data is stored in secure encrypted files making it easy to retrieve the
data dependent on process information. Data is automatically recognized without having to remember file names.
Password protection: Up to 4 levels of password protection with up to 50 different users
are available. Multiple level of password protection and an audit trail of actions enhance the security of the data.
4. Petroservices DAQ:
This DAQ is mainly an electronic board that implements the functions of a complete data acquisition system.
This PCB can deal with the following inputs: • 36 analog channels “4-20mA”
• 4 analog channels “0-10V {1ch.}, 0-15V {1ch.} and 0-5V {2ch.}” • 8 frequency channels “0-1 KHz”
• 4 up/down counter channels
All the inputs are connected to PCB via 3 flat cables “1 for digital inputs and 2 for analog inputs”
The PCB is connected to computer by a USB cable “male/male” and transmits all data to computer using the software included with DAQ.
The output from the PCB also includes:
• Analog output {0-5V} for all frequency channels “to be connected to a chart recorder or any analog input control system”
• Analog output {0-5V} for all up/down counters “to be connected to a chart recorder or any analog input control system”
Technical specifications:
• Supply voltage DC : 5V “from USB or external power supply” • Power Consumption : max. 7.5 VA
• Interface between PCB and computer : USB cable “male/male” • Max. Input frequency “Freq. channels” : 1kHz