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Druck DPS5000 Instruction Manual

Pressure transducer
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DPS5000
SDI-12 Pressure Transducer
Instruction Manual
Druck.com

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Summary of Contents for Druck DPS5000

  • Page 1 DPS5000 SDI-12 Pressure Transducer Instruction Manual Druck.com...

  • Page 3: Maintenance

    For technical advice contact the manufacturer. 1. A qualified technician must have the necessary technical knowledge, documentation, special test equipment and tools to carry out the required work on this equipment. Copyright 2019 Baker Hughes Company. English–DPS5000 Instruction Manual | i...
  • Page 4 This symbol, on the equipment, indicates a warning and that the user should refer to the user manual. Druck is an active participant in the UK and EU Waste Electrical and Electronic Equipment (WEEE) take-back initiative (UK SI 2013/3113, EU directive 2012/19/EU).
  • Page 5 Milli Second Milli Volt Not Applicable Personal Computer Pound per square inch Read/Write Access Receive SDI-12 Serial Data Interface Communication Protocol SHEF Standard Hydrometeorological Exchange Format Transmit Universal Serial Bus Volt Copyright 2019 Baker Hughes Company. English–DPS5000 Instruction Manual | iii...
  • Page 6 Copyright 2019 Baker Hughes Company. iv | DPS5000 Instruction Manual–English...

  • Page 7: Table Of Contents

    Average Filter Setup 4.2.4 Setting Liquid Density 4.2.5 Setting Gain and Offset 4.2.6 Tare Command Set 4.3.1 Basic Command Set 4.3.2 Extended Command Set Metadata Commands 4.4.1 Identify Measurement Commands Copyright 2019 Baker Hughes Company. English–DPS5000 Instruction Manual | v...
  • Page 8 4.4.2 Identify Measurement Parameter Commands Appendix A. Register Table Appendix B. Factory Configuration Configuration Example One Example Two Copyright 2019 Baker Hughes Company. vi | DPS5000 Instruction Manual–English...

  • Page 9: Introduction

    SDI-12 interface. The transducer is a sealed device with the electrical connections made via an integral cable. The DPS5000 pressure transducers is a low powered device offering a high level of accuracy over a wide temperature range. The SDI-12 interface provides compensated pressure and temperature readings and allows the transducer operation to be software controlled.

  • Page 10: Installation & Operation

    Before using the equipment, remove the plastic/rubber protection cap from the pressure connector. The DPS5000 is a harsh media isolated product. Isolation is achieved by hermetically sealing the transducer element in an oil filled chamber. The weight of this oil gives a g sensitivity as a pressure offset error.

  • Page 11: Connecting To A Pressure Source

    Depth versions require compatibility with Hytrel, or polyurethane. Note: Fluid classification complies with European Regulation (EC) No 1272/2008. Statements comply with European Pressure Equipment Directive 2014/68/EU. Refer to document K0581 for product classification and regulatory information. Copyright 2019 Baker Hughes Company. English–DPS5000 Instruction Manual | 3...

  • Page 12: Pressure Containment

    < 15 mA peak < 50 µA sleep 3.5 Connecting to SDI-12 Network The figures below show example connections of the DPS5000 pressure transducer to a SDI-12 network. Figure 1 shows the pressure transducers receiving power from the data recorder. DPS5000 Pressure Transducer...

  • Page 13: Maintenance

    DPS5000 Pressure Transducer Data and Ground Power Supply +VE Supply and Ground Data Recorder Data and Ground Figure 2: Connection with External Power Supplies Table 4: DPS5000 Cable Color Identification Name Function Color +VE Supply +12 V power supply. Blue Ground Ground return for power supply.

  • Page 14: Adjustment

    The quality of the power supply and monitoring equipment will directly affect the EMC performance of the entire system. Since “Druck Limited” has no control over the installation of the transducer it must remain the responsibility of the user to ensure that the EMC performance of the system is adequate.

  • Page 15: Earthing

    For persistent faults, safely remove the equipment from service. Refer to Section 3.7 for returned goods procedure. 4. Programming Guide This section introduces the SDI-12 communication protocol and the DPS5000 measurement procedure. 4.1 SDI-12 Introduction SDI-12 is a standard for interfacing data recorders with microprocessor-based transducers. This section will discuss commands and how to use them.

  • Page 16: Baud Rate And Byte Frame Format

    7 numeric digits, plus the decimal point. Note: The transducer automatically suppresses trailing zeros of returned numeric data values. For example, ‘+1.000000’ would be returned as ‘+1’, i.e. all trailing zeros and the decimal point Copyright 2019 Baker Hughes Company. 8 | DPS5000 Instruction Manual–English...

  • Page 17: Transducer Address

    (‘!’) character. 4.2 Command Overview All responses from the transducer end with a carriage return (0D hex, 13 decimal) and a line feed (0A hex, 10 decimal) character. Copyright 2019 Baker Hughes Company. English–DPS5000 Instruction Manual | 9...

  • Page 18: Transducer Identification

    In this example, all returned <values> have the maximum of 9 characters each. Therefore, the transducer is only able to return three data values in the first ‘aD0!’ send data command. Copyright 2019 Baker Hughes Company. 10 | DPS5000 Instruction Manual–English...
  • Page 19 Send data ‘aD1’ command. RX> Transducer replied with just an acknowledgment; no more data values available. a. The first letter ‘a’ in the command is replaced by the transducer address, see Section 4.1.5. Copyright 2019 Baker Hughes Company. English–DPS5000 Instruction Manual | 11...

  • Page 20: Average Filter Setup

    Note that measurements are factory configured according to customer requirements. See ⁞ Appendix B. a<values> a. The first letter ‘a’ in the command is replaced by the transducer address, see Section 4.1.5. Copyright 2019 Baker Hughes Company. 12 | DPS5000 Instruction Manual–English...

  • Page 21: Setting Liquid Density

    Note that changing these values does not effect the calibration data stored within the transducer. The gain and offset are applied with the following equation: Output = Measurement Gain Offset    Copyright 2019 Baker Hughes Company. English–DPS5000 Instruction Manual | 13...

  • Page 22: Tare

    The Tare function is available for the density compensated level measurement and the compensated pressure measurement. The Tare value is subtracted from the measurement in the measurement units. The Tare function has the following equation. Output = Measurement - Tare Copyright 2019 Baker Hughes Company. 14 | DPS5000 Instruction Manual–English...
  • Page 23 Commits all values in the register table to the power-on defaults. RX> Acknowledgment from transducer. a. The first letter ‘a’ in the command is replaced by the transducer address, see Section 4.1.5. Copyright 2019 Baker Hughes Company. English–DPS5000 Instruction Manual | 15...

  • Page 24: Command Set

    Send Data (D command): <value1> Flash status after checking system register and calibration area. <value2> System status value. Used for debug purposes. Contact Druck for further details. atttn Start Measurement (M command): n values ready after ttt seconds. The transducer will issue a service request when it has completed the measurement, and the waiting time has elapsed.

  • Page 25: Extended Command Set

    The first letter ‘a’ in the command is replaced by the transducer address, see Section 4.1.5. 4.4 Metadata Commands The DPS5000 supports SDI-12 metadata commands. A metadata command causes the DPS5000 to respond to a command without initiating a measurement.

  • Page 26: Identify Measurement Commands

    <field1> contains the identification code of the parameter. This typically contains the Standard Hydrometeorological Exchange Format (SHEF) code. If an appropriate SHEF code does not exist, the field will contain a Druck specific identifier code. <field2> contains the units for the parameter. If the parameter does not have units, the field will filled with a single space character.
  • Page 27 The first letter ‘a’ in the command is replaced by the transducer address, see Section 4.1.5. b. The <units> value is the transducer’s units configuration, see Appendix B. Copyright 2019 Baker Hughes Company. English–DPS5000 Instruction Manual | 19...
  • Page 28 Copyright 2019 Baker Hughes Company. 20 | DPS5000 Instruction Manual–English...

  • Page 29: Appendix A. Register Table

    GainVolt float The gain value of the equation used for the power supply input calculation. The default value is 1.0. Power supply input = gain × Volt + offset. Copyright 2019 Baker Hughes Company. English–DPS5000 Instruction Manual | 21...
  • Page 30 Note that any change to the pressure compensation or level calculation register entries may invalid the TareLevel. Verify that TareLevel remains valid after register changes. Table A-2: Pressure Unit Codes Pressure Code Units mbar mmHg inHg kgf/cm Copyright 2019 Baker Hughes Company. 22 | DPS5000 Instruction Manual–English...
  • Page 31 Default value for transducer after power-on or reset. Customization In customization mode, it is possible to configure the register values in Table A-1. The transducer returns to normal mode after a reset. Copyright 2019 Baker Hughes Company. English–DPS5000 Instruction Manual | 23...
  • Page 32 Appendix A. Register Table Copyright 2019 Baker Hughes Company. 24 | DPS5000 Instruction Manual–English...

  • Page 33: Appendix B. Factory Configuration

    The following example is a transducer that has been configured to return just a single output, i.e. pressure. Sensor Output Code Sensor Output 1 Sensor Output 2 Sensor Output 3 Sensor Output 4 Copyright 2019 Baker Hughes Company. English–DPS5000 Instruction Manual | 25...

  • Page 34: Example Two

    <value4> is power supply voltage (volts). See Section 4.2.2 for more details on the send data command. a. The first letter ‘a’ in the command is replaced by the transducer address, see Section 4.1.5. Copyright 2019 Baker Hughes Company. 26 | DPS5000 Instruction Manual–English...

  • Page 36: Office Locations

    Office Locations https://druck.com/contact Services and Support Locations https://druck.com/service Copyright 2019 Baker Hughes Company. This material contains one or more registered trademarks of Baker Hughes Company and its subsidiaries in one or more countries. All third- party product and company names are trademarks of their respective holders.

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Sdi-12

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