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Druck DPS8000 Series Instruction Manual

Can bus pressure transducer
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DPS8000 Series
CAN bus Pressure Transducer
Instruction Manual
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  • Page 1 DPS8000 Series CAN bus Pressure Transducer Instruction Manual Druck.com...

  • Page 3: Maintenance

    Maintenance The sensor must be maintained using the manufacturer’s procedures and these should be carried out by authorized service agents or the manufacturer’s service departments. https://druck.com/service Technical Advice 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.
  • 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 Abbreviation Description Communication Object (CAN Message): Data is sent across a CAN Network inside a COB. COB-ID COB-Identifier. Identifies a COB uniquely in a Network and determines the priority of the COB. Direct Current Digital Pressure Sensor Electromagnetic Compatibility European Norm °F Fahrenheit (Degrees) Floating Point...
  • Page 6 Abbreviation Description Système International Serial Number Volt Copyright 2011 Baker Hughes Company. iv | DPS8000 Instruction Manual–English...

  • Page 7: Table Of Contents

    Contents Introduction Manufacturer Description Purpose 2.1.1 Applications 2.1.2 Summary of Facilities 2.1.3 Summary of the CANopen Set of Functions Technical Specifications Design and Principle of Operation Markings Installation & Operation General Requirements Safety Measures Connecting to a Pressure Source 3.3.1 Media Compatibility 3.3.2 Pressure Containment...
  • Page 8 4.7.3 0x2200 – To Change the Calibration Data 4.7.4 0x2201 to 0x2203 – The Last Calibration Year, Month, Day 4.7.5 0x2204 to 0x2206 – The Next Calibration Year, Month, Day 4.7.6 0x2207 – The Pressure Calibration Gain 4.7.7 0x2208 – The Pressure Calibration Offset 4.7.8 0x2209 –...
  • Page 9 B.2.4 Object 2006h: Pressure Span Overflow Count B.2.5 Object 2007h: Pressure Span Underflow Count B.2.6 Object 2008h: Temperature Span Overflow Count B.2.7 Object 2009h: Temperature Span Underflow Count B.2.8 Object 210Ch: Node ID B.2.9 Object 210Dh: Bit Rate B.2.10 Object 2200h: Calibration Access Pin B.2.11 Object 2201h: Last Calibration Year B.2.12...
  • Page 10 Copyright 2011 Baker Hughes Company. viii | DPS8000 Instruction Manual–English...

  • Page 11: Introduction

    See Appendix D, “Bibliography,” on page 35 for more details. 2.1.1 Applications The DPS8000 series is for automated systems using a CAN bus network and CANopen software standards. The pressure transducers in the DPS8000 series are ideal for automated systems with: •...

  • Page 12: Summary Of The Canopen Set Of Functions

    • Read and set the last and next calibration date. • Set new calibration values. • Set local pressure and temperature limits for use with the internal out-of-limit counters. • Monitor the number of times the pressure is not in the specified limits. •...

  • Page 13: Markings

    Supply: ### TO ### Vdc Output: CAN Temp. Range: ### TO #### °C DRUCK LTD. GROBY, LE6 0FH, UK Product name: ‘TERPS8##C’. Product description: ‘PRESSURE SENSOR’. Model number - To identify the meaning, refer to the product data sheet. If the model number is followed by four or eight numbers, ‘-####’...

  • Page 14: Safety Measures

    The materials used for the primary enclosure and pressure bearing surfaces are identified in the product data sheet or, if applicable, the specification drawing. Make sure that the materials are applicable for the installation. Before using the equipment, remove the plastic/rubber protection cap from the pressure connector.

  • Page 15: Connecting To A Pressure Source

    medium to be measured is liquid. If there are water hammer effects in the system, it is recommended to use a sensor complete with a hydraulic shock dampener. To reduce the temperature acting on the isolation diaphragm when measuring vapor pressure, it is recommended to use impulse tubes.

  • Page 16: Pressure Containment

    3.3.2 Pressure Containment The pressure containment of the sensors is shown in Table 3. Table 3: Pressure Containment Product Pressure Range Pressure Containment 81## 0 to 3.5 bar 7 bar maximum 0 to 50 psi 100 psi maximum 80## 0 to 7 bar 70 bar maximum 82## 0 to 100 psi...

  • Page 17: Power Requirements

    Output Calibration, Full-Scale and Offset adjustment may be subject to state requirements for verification of metrological equipment. Druck supplies a calibration certificate with the pressure transducer. When it is necessary to recalibrate the pressure transducer, use the procedure that appears below (Druck recommends a minimum interval of once a year).
  • Page 18 • A CANopen software package to get access to the contents of the CANopen Object Dictionary. Refer to Appendix B, “CANopen Value,” on page 27. 3.6.4.2 Two-Point Pressure Calibration – Procedure To get accurate results, calibrate in conditions where the pressure and temperature are stable. Record the current values for the calibration data: •...

  • Page 19: Returned Goods Procedure

    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 sensor it must remain the responsibility of the user to ensure that the EMC performance of the system is adequate.

  • Page 20: Cable Type

    To minimize the effect of nearby circuits and events, it is necessary to use screened cable between the sensor and power supply / monitoring equipment. Failure to do so will invalidate the EMC tests conducted by “Druck”. The choice of cable type should reflect the environment through which it is going to run. Screened cable should always be used where electrical noise is present.

  • Page 21: Quick Start

    Note: This shows how the pressure transducer uses the default values to transmit a Process Data Object (PDO). The readings can be filtered by a range of preset finite impulse response (FIR) filters. Refer to “0x220D to 0x2218 – The Filter System” on page 14. Use the CANopen software package to receive the PDO and get access to the CANopen Object Dictionary.

  • Page 22: 0X1011 01 - To Re-Apply The Factory Values

    Example: Set the value to 0x65766173 = evas (in ASCII) Note: This does not overwrite the factory data and the sensor can be returned to its factory state by using 0x1011 as described below. 4.6.4 0x1011 01 – To Re-apply the Factory Values Use object 0x1011 01 (Restore Default Parameters) to re-apply all the factory values.

  • Page 23: 0X2200 - To Change The Calibration Data

    Value Baud Rate 500 kbit/s 800 kbit/s 1000 1000 kbit/s Changes to the bit rate value does not take effect unless saved and the power cycled. 4.7.3 0x2200 – To Change the Calibration Data To write new calibration values in objects 0x2201 to 0x220A, set object 0x2200 (Calibration Access Pin) to 4118.

  • Page 24: 0X2209 - The Temperature Calibration Gain

    4.7.8 0x2209 – The Temperature Calibration Gain Refer to “0x2200 – To Change the Calibration Data” on page 13. Use 0x2209 (Temperature Gain) to apply a correction to the compensated source temperature. Object 0x2209: Object 0x220A: Object 0x6130 02: Compensated Temperature Gain Temperature Offset Temperature Value...

  • Page 25: 0X6131 01 - The Units For The Pressure Output

    Set object 0x6123 01 to 100 (the scale-factor for pascal). Object 0x6100 01 Object 0x6130 01 Pressure Value Pressure Value Process Value Y Field Value X (pascal) (mbar) Figure 9: Scale of Pressure and Temperature Output For a list of values of the alternative pressure units, refer to Appendix C, “Alternative Pressure Units,”...

  • Page 26: To Monitor The Operation - Objects: 0X2000 - 0X2Ffff

    4.10 To Monitor the Operation – Objects: 0x2000 – 0x2FFFF 4.10.1 0x2006 – The Count: Pressure is More than the Limit Use object 0x2006 (Pressure Span Overflow Count) to monitor the pressure history. The count increments one each time the process value is more than the span end value. Object 0x6149 01: Object 0x2006: Object 0x6130 01:...

  • Page 27: 0X2009 - The Count: Temperature Is Less Than The Limit

    4.10.4 0x2009 – The Count: Temperature is Less than the Limit Use object 0x2009 (Temperature Span Underflow Count) to monitor the temperature history. The count increments one each time the process value is more than the span end value. Object 0x6148 02: Object 0x2009: Object 0x6130 02: Temperature Value...
  • Page 28 Copyright 2011 Baker Hughes Company. 18 | DPS8000 Instruction Manual–English...

  • Page 29: Appendix A. Canopen Object Dictionary

    Appendix A. CANopen Object Dictionary Sub- Index Name Object Code Description Data Type Access Default Value Index Mapping 1000 Device Type Variable UNSIGNED32 CONST 0x00020194 (See B.1.1) 1001 Error Register Variable UNSIGNED8 0x00 (See 4.9.1, B.1.2) 1003 Pre-defined Error Field Array Number of Errors UNSIGNED8...
  • Page 30 Appendix A. CANopen Object Dictionary Sub- Index Name Object Code Description Data Type Access Default Value Index Mapping 1012 COB-ID Time Stamp Variable UNSIGNED32 0x00000100 (See B.1.11) 1014 COB-ID EMCY Variable UNSIGNED32 0x00000080 (See B.1.12) 1015 Inhibit Time Emergency Variable UNSIGNED16 0x0000 (See B.1.13)
  • Page 31 Sub- Index Name Object Code Description Data Type Access Default Value Index Mapping 1A00 Transmit PDO Mapping Record Number of Entries UNSIGNED8 0x02 Parameter 1 Mapping Entry 1 UNSIGNED32 0x61300120 (See 4.6.6, B.1.18) Mapping Entry 2 UNSIGNED32 0x20040020 Mapping Entry 3 UNSIGNED32 0x00000000 Mapping Entry 4...
  • Page 32 Appendix A. CANopen Object Dictionary Sub- Index Name Object Code Description Data Type Access Default Value Index Mapping 210D Bit Rate Variable UNSIGNED16 0x00FA (See 4.7.2, B.2.9) 2200 Calibration Access Pin Variable UNSIGNED16 0x0000 (See 4.7.3, B.2.10) 2201 Last Calibration Year Variable UNSIGNED16 0x0000...
  • Page 33 Sub- Index Name Object Code Description Data Type Access Default Value Index Mapping 220D FIR Samples Size Variable UNSIGNED8 0x00 (See 4.7.10, B.2.21) 220E FIR Sample Data Variable DOMAIN NULL (See 4.7.10) 220F FIR2 Samples Size Variable UNSIGNED8 0x00 (See 4.7.10) 2210 FIR2 Sample Data Variable...
  • Page 34 Appendix A. CANopen Object Dictionary Sub- Index Name Object Code Description Data Type Access Default Value Index Mapping 2218 FIR Prescaler Array Number of Entries UNSIGNED8 0x05 (See 4.7.10) FIR pre-scaler UNSIGNED16 0x0000 FIR2 pre-scaler UNSIGNED16 0x0000 FIR3 pre-scaler UNSIGNED16 0x0000 FIR4 pre-scaler UNSIGNED16...
  • Page 35 Sub- Index Name Object Code Description Data Type Access Default Value Index Mapping 6110 AI Sensor type Array Number of Entries UNSIGNED8 0x02 (See B.3.2) AI Sensor type 1 UNSIGNED16 0x005A AI Sensor type 2 UNSIGNED16 0x0064 6120 AI Input scaling 1 FV Array Number of Entries UNSIGNED8...
  • Page 36 Appendix A. CANopen Object Dictionary Sub- Index Name Object Code Description Data Type Access Default Value Index Mapping 6131 AI Physical unit PV Array Number of Entries UNSIGNED8 0x02 (See 4.8.2, B.3.9, Appendix C) AI Physical unit PV 1 UNSIGNED32 0xFD4E0000 AI Physical unit PV 2 UNSIGNED32...

  • Page 37: Appendix B. Canopen Value

    Communication Segment Appendix B. CANopen Value This appendix contains data for the primary objects that appear in the following areas of the CANopen Object Dictionary: Index Area 0x1000 to 0x1FFF Communications profile area. 0x2000 to 0x2FFF Manufacturer specific profile area. 0x6000 to 0x6FFF Standardized device profile area.

  • Page 38: Object 100Dh: Life Time Factor

    Appendix B. CANopen Value B.1.8 Object 100Dh: Life Time Factor The life time factor multiplied with the guard time gives the life time for the device. When not used it is 0. B.1.9 Object 1010h: Store Parameter Field This entry supports saving of parameters in non volatile memory. With a read access the device provides information about its saving capabilities.

  • Page 39: Object 1018H: Identity Object

    Manufacturer Segment B.1.15 Object 1018h: Identity Object This object contains general information about the device. Sub-Index Identity Object Contains a unique value allocated each manufacturer. Identifies the manufacturer specific product code (device version). Contains the revision number. Bit 31-16 is the major revision number and bit 15-0 the minor revision number.

  • Page 40: Object 2005H: Acquisition Interval

    Appendix B. CANopen Value B.2.3 Object 2005h: Acquisition Interval The length of time between the current and previous samples in milliseconds. B.2.4 Object 2006h: Pressure Span Overflow Count Used in the calculation of 6150 (AI Status). B.2.5 Object 2007h: Pressure Span Underflow Count Used in the calculation of 6150 (AI Status).

  • Page 41: Device Profile Segment

    Device Profile Segment B.2.21 Object 2300h: PDCR Min Pressure Lowest pressure that can be measured by the pressure sensor in mbar. B.2.22 Object 2301h: PDCR Max Pressure Full-scale pressure rating of the pressure sensor in mbar. B.2.23 Object 2302h: PDCR Type Contains the pressure sensor type.
  • Page 42 Appendix B. CANopen Value B.3.9 Object 6131h: AI Physical Unit PV This object assigns SI units and prefixes for the process values within the analogue input function block. The coding of the physical units listed in Appendix C, “Alternative Pressure Units,” on page 33.
  • Page 43 Appendix C. Alternative Pressure Units This appendix contains data for the alternative pressure units. The basic operation of the pressure transducer uses mbar for the pressure calculations. Druck uses the Customer Ordering Information to set the default units for the pressure output. The default units can be: mbar, bar, or psi.
  • Page 44 Appendix C. Alternative Pressure Units Copyright 2011 Baker Hughes Company. 34 | DPS8000 Instruction Manual–English...
  • Page 45 Appendix D. Bibliography For more data, refer to the following publications: CANopen Application Layer and Communication Profile • CiA Draft Standard DS-301 (Version 4.01) CANopen Device Profile for Measurement Devices and Closed Loop Controllers • CiA Draft Standard Proposal DSP-404 (Version 1.0) CANopen Layer Setting Services and Protocol (LSS) •...
  • Page 46 Appendix D. Bibliography Copyright 2011 Baker Hughes Company. 36 | DPS8000 Instruction Manual–English...

  • Page 48: Office Locations

    Office Locations https://druck.com/contact Services and Support Locations https://druck.com/service Copyright 2011 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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