Dräger Polytron Pulsar 2 Technical Manual
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Dräger Polytron Pulsar 2 Technical Manual

Open path gas detector
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Dräger Polytron Pulsar 2
Open Path Gas Detector
Technical Manual
WARNING
!
You must read, understand, and comply with this Technical
Manual before you use the gas detector in order to ensure
the proper operation and function of the gas detector.
i

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Summary of Contents for Dräger Polytron Pulsar 2

  • Page 1 Dräger Polytron Pulsar 2 Open Path Gas Detector Technical Manual WARNING You must read, understand, and comply with this Technical Manual before you use the gas detector in order to ensure the proper operation and function of the gas detector.

  • Page 3: Table Of Contents

    Installation of a Dräger Polytron Pulsar 2 ..... .7 Electrical installation ......9 Cabling the Ex d certified connector .

  • Page 4: For Your Safety

    NOTICE Observe the chapter “Maintenance“. The Dräger Polytron Pulsar 2 is one of the family of de- tectors certified under the designation GD8. All certifi- Use in areas subject to explosion hazards cates will refer to the GD8...

  • Page 5: Parts Supplied

    3 There is a communication path for digital signals from the Receiver to the Transmitter. The Receiver can command 1 The Dräger Polytron Pulsar 2 detector comes in two parts the Transmitter to double its power and to increase the a Transmitter and a Receiver;...
  • Page 6 HART multiplexer in the non-hazardous area provide output at a regular 2Hz rate. This is substituted for much of Polytron Pulsar 2’s digital capability in a way that is Alignment Mode if the Transmitter detects that the supply compatible with HART-enabled point detectors.

  • Page 7: Installation Of A

    However siting is still an important consideration. Guidance for siting is contained in EN 60079-29-2. 2 Dräger Polytron Pulsar 2 is immune to sunlight so there is no need to take account of the sun position when siting detectors.
  • Page 8 For connection options refer to figure 4, 5 and 6. Factory fitted Ex e certified cable gland for Power/Signal cable 00223892.eps Figure 2: Wall mounting of Dräger Polytron Pulsar 2 with eX link plug and socket SIDE VIEW FRONT VIEW Rear cover Front cover fitted...

  • Page 9: Electrical Installation

    Figure 3 below shows typical values of peak current consumption for Transmitter and Receiver individually. The field cable runs must comply with local regulations. Please refer to the Tables over for maximum recommended power cable lengths. 6.0.1 Figure 3: Peak current consumption Tx current consumption Rx current consumption Voltage DC 004223952.eps Dräger Polytron Pulsar 2...
  • Page 10 Electrical installation Dräger Polytron Pulsar 2 maximum Cable run in metres: To Transmitter only permissible power cable lengths Worst case 26V... The following tables give the maximum cable lengths for supply: differing worst case power supply voltages and core sizes.
  • Page 11 2 When the AI500 Digital Interface is used the capacitance of 1118 1 mm the cable(s) linking it to the Dräger Polytron Pulsar 2 should not exceed 100nF (e.g. 1000m of 100pF/m cable). 1118 1305 1491 1678 1.5 mm 3 When several Dräger Polytron Pulsar 2’s are mounted...
  • Page 12 5) This core may be omitted if the AI500 Digital Interface is not required. 6) for DNV compliant installations connect the cable screen one sided to PE on the power supply 00623892.eps Dräger Polytron Pulsar 2...

  • Page 13: Cabling The Ex D Certified Connector

    DC power supply and control equipment. This then provides the necessary power, signal and digital connections for the Dräger Polytron Pulsar 2 to operate when the plug and socket are mated together. NOTICE The Dräger Polytron Pulsar 2 Transmitter is a 3 wire...
  • Page 14 11 Contact pins 12 Socket insert Ex d socket cable specification 7.2.1 Figure 8 The Ex d socket supplied with the Dräger Polytron Pulsar 2 may be used with cables of the following dimensions: External sheath 12 - 21mm Internal sheath 8.5 - 16mm...
  • Page 15 30° and then fully insert before screwing the coupling of the socket to the plug in order to establish the IP protection and mechanical protection. Reverse this process in order to disconnect the plug and socket. Dräger Polytron Pulsar 2...
  • Page 16 Cabling the Ex d certified connector Figure 10: Connection diagram powered individually using CEAG Ex d connector Transmitter Connections Receiver Connections Rear of eXLink Rear of eXLink socket socket (See notes 2 and 3) 01223892.eps Dräger Polytron Pulsar 2...

  • Page 17: Installing And Commissioning The Dräger Polytron Pulsar 2

    2. Mount the Dräger Polytron Pulsar 2 on a suitable structure, by neighbouring Transmitters. In this case it is only ensuring that the beam path meets the criteria laid down in Transmitters whose light can reach the Receiver, directly or by section “Installing The Dräger Polytron Pulsar 2”.
  • Page 18 30-120m and 100-200m Transmitters highlighted be- Alignment and zeroing low. The Dräger Polytron Pulsar 2 must be aligned and zeroed when it is first installed and whenever the Transmitter or 4 to 60m Transmitter Receiver are moved. Before carrying out the electronic Connect the Dräger Hand Held Terminal and check that the...

  • Page 19: Planned Maintenance

    The final horizontal adjustment moves the circle from right to left, until the display matches the diagram. Tighten the eight 1 The Dräger Polytron Pulsar 2 has been designed so that it screws progressively in rotation to avoid losing the alignment.

  • Page 20: Specification

    Hand Held Terminal or remotely via AI500 interface to Dräger Hand Held Terminal or portable PC. 338 x 258 x 216mm Dimensions With eX link connector plug and socket Weight Transmitter 5.5kg Receiver 5.5kg With junction box and flying lead Transmitter 7.0kg Receiver 7.0kg Dräger Polytron Pulsar 2...

  • Page 21: Receiver Default Settings

    Beam block time out to Fault On/off Static pre-warning On/off Auto Zero Tracking On/off Default values or lower comply with EN 60079-29-4:2009 Note: Default settings on older Pulsars. This should be taken into account when replacing older units in harsh environments. Dräger Polytron Pulsar 2...

  • Page 22: Certification

    Certification Certification Dräger Polytron Pulsar 2 Transmitter and Receiver NOTICE IThe Dräger Polytron Pulsar 2 is one of the family of Detectors certified under the designation GD8. All cer- tificates will refer to the GD8. International Certification IECEx certificate number IECEx SIR 04.0006 Ex d[ia] IIC T5 (Tamb = -40 °C to +60 °C)

  • Page 23: Accessories List

    2350341 Dräger Polytron Pulsar 2 ATEX 100-200m (RX only Ethylene) Part number Dräger Polytron Pulsar 2 with ABS moulded cover and Ex d certified plug and socket connectors 2350496 Dräger Polytron Pulsar 2 ATEX 4-60m (Complete TX + RX) 2350497 Dräger Polytron Pulsar 2 ATEX 30-120m (Complete TX + RX)

  • Page 24: Fault Finding Guide

    As true for all optical open path systems, this may induce a beam block on the Dräger Polytron Pulsar 2 which will impair the Dräger Polytron Pulsar 2’s ability to detect the gas. The beam block warning would be activated and reported to the user.
  • Page 25 The mountings of the Transmitter and/or Provide additional bracing for the mount- Receiver are not sufficiently rigid ings. Notice that their rigidity is more im- portant than their strength, changes in direction more important than translational movements Dräger Polytron Pulsar 2...
  • Page 26 GCK400 kit the others is working correctly, not to simulate any particular quantity of gas. It is normal for individual units to show widely differing responses to the sheets Dräger Polytron Pulsar 2...

  • Page 27: The Dräger Hand Held Terminal

    Hand Held Terminal is moved rapidly from one link through the AI500 to any of the four Dräger Dräger Polytron Pulsar 2 head to another. It detects a possible Polytron Pulsar 2 Receivers connected to it. In this way the...
  • Page 28 Polytron Pulsar 2 TRANSMITTER more You can test control equipment connected to the Dräger Polytron Pulsar 2 Receiver by imposing a current on its 4 to TX MAIN MENU 20mA current loop output. + and - allow the test current 1 View current readings to be stepped up and down from 0.0 to 20.0mA in 0.5mA...

  • Page 29: Safety Information

    Dräger Polytron Pulsar 2. In non-hazardous areas it may be connected to the Dräger AI500 Digital Interface or a personal computer. For connection details refer to “The Dräger Polytron Pulsar 2 Digital Interface AI500” section of the Dräger Polytron Pulsar 2 installation manual.
  • Page 30 The Dräger Hand Held Terminal Figure 12: Dräger Hand Held Terminal Draeger PLMS Ltd. Plymouth, UK BATTERY INSIDE Approved Battery: Duracell or Procell MN 1604. WARNING! DO NOT CHANGE BATTERY IN A HAZARDOUS AREA 01823892.eps Dräger Polytron Pulsar 2...

  • Page 31: The Dräger Polytron Pulsar 2 Digital Interface Ai500

    In all cases, the Hand Held Terminal (or Communicator) is able Digital I/O Dräger Polytron Pulsar 2 Receiver B to call up any one of the Dräger Polytron Pulsar 2 Receivers connected to the AI500 and has the same functionality as if Common connected to the field unit at its possibly inaccessible location.
  • Page 32 The Dräger Polytron Pulsar 2 Digital Interface AI500 16.8 Connector 2: EIA-RS-422/485 Serial Port 16.10 Communicating with the AI500 Digital Interface Terminal: EIA-RS-422/485 Function: For most purposes the AI500 can be used with equipment and 0V (ref) software supplied by Dräger, relieving the user of the need to +5V dc out (100mA max) know the details of its digital communications.
  • Page 33 The Dräger Polytron Pulsar 2 Digital Interface AI500 Figure 13: Connection from the field device to the AI500 HAZARDOUS AREA NON-HAZARDOUS AREA (see note 1) +24V dc Receiver Transmitter Detector D Common (Instrument Earth) Detector C RS-485 Master RS-485 (see note 5)

  • Page 34: Using The Dräger Polytron Pulsar 2 With Hart

    17.1 Description The HART enhanced Dräger Polytron Pulsar 2 allows basic digital communications between the Receiver in the field and the safe area without the need for extra cable cores. The digital signals are overlaid on the 0 20mA analogue current as a symmetrical modulation, ensuring that the integrity of the normal reading remains unaffected.

  • Page 35: Ams Operator Screens And Help Texts

    Dräger Polytron Pulsar 2 Transmitters of the same type can be interchanged at will.) 5 Dräger Polytron Pulsar 2 is not intended to be used in a 6 Date- Gregorian calendar date that is stored in the Field HART multidrop for normal operation. However, several Device.
  • Page 36 Misalignment of the Transmitter and the Receiver and dirt on their lenses can also affect this value. 13 The internal temperature of the Dräger Polytron Pulsar 2 Receiver. Normally a few degrees above ambient temperature due to internal power consumption and the lens heater.
  • Page 37 AMS operator screens and help texts Figure 16 Status of AMS Tag (Dräger Polytron Pulsar 2 Status) 02223892.eps 1 Please state this error code if you need assistance from the 2 The 4-20mA Analog Output is at Fault level (<1mA) because service support centre.
  • Page 38 2 Gas reading shows a negative value. Before re-zeroing the cause has been removed and the Dräger please check for obstructions in the beam, misalignment or Polytron Pulsar 2 is expected to restart operation in a few lens contamination. seconds.
  • Page 39 Figure 18 Configuration Properties of AMS Tag (Basic Set up) 02423892.eps 1 Final Assembly Number- Number that is used for 2 Lower Range Value - For Dräger Polytron Pulsar 2 this identification purposes, and is associated with the overall value is always zero.
  • Page 40 2 Field Device Revision- Revision of the Field Device Specific Description that the Field Device conforms to. Device Description that the Field Device conforms to. 3 Number of Request Preambles- Number of Preambles required from the Host request by the Field Device. Dräger Polytron Pulsar 2...
  • Page 41 Polytron Pulsar 2, not the Duct-Mounted version. any gas is expected to be uniformly diluted across the beam path. The Dräger Polytron Pulsar 2 can then be configured to output 0-100 %LFL. 5 Issue of the Receiver Main Processor firmware (23 = version 6 Issue of the Receiver HART Processor firmware (23 = 2.3 etc).
  • Page 42 'WARN'. The warnings are for: Optics; Receiver Supply; Receiver temperature; Receiver Alignment; Transmitter; Transmitter Alignment. Please refer to the Dräger Polytron Pulsar 2 Status tab for their individual descriptions. 3 Proper selection of Channel avoids interference with other 4 Auto-Zero Tracking allows small gas readings that persist instruments nearby.
  • Page 43 02823892.eps 1 Auto Zero Tracking rate - When enabled AZT allows small 2 If the beam is obstructed (or Dräger Polytron Pulsar 2 is gas readings that persist for a long time to be interpreted as unable to provide a valid gas reading due to any other zero drift and automatically cancelled.
  • Page 44 Transmitter and Receiver need cleaning. 5 The value of 'Operation Hours' recorded the most recent 6 The Dräger Polytron Pulsar 2 was set to this channel when time the Dräger Polytron Pulsar 2 was zeroed. last zeroed.
  • Page 45 03023892.eps 1 Up to four Gas Tables can be factory-installed in the 2 Standard of LEL values being used to calculate table Dräger Polytron Pulsar 2 Receiver. One of those can be IEC: IEC 60079-20 selected to best suit the application. Unsuitable selection...

  • Page 46: Declaration Of Conformity

    EN50270:2006, EN61000-4-3:2006 _______________________ Keith Chitty Logistics Manager Draeger Safety UK Limited Tel: +44 1670 352891 Registered in England No. 777464 Blyth Fax: +44 1670 356266 Northumberland www.draeger.com NE24 4RG United Kingdom DFO 137 issue 1.6 July 2011 Dräger Polytron Pulsar 2...
  • Page 48 Manufactured by Dräger UK Limited Ullswater Close Blyth Riverside Business Park Blyth, Northumberland NE24 4RG, United Kingdom Tel. +44 (0)1670 352 891, Fax +44 (0)1670 540 033 www.draeger.com Distributed in the US by Draeger Safety, Inc 101 Technology Drive Pittsburgh, PA 15275-1057 Phone +1 412 7 87 - 83 83, Fax +1 412 7 87 - 22 07 90 23 892 - TM 4675.892 en ©...

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