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INSTRUCTION MANUAL
ED810 GAS DETECTOR
I N D E X
Page No.
IMPORTANT NOTE 2
ATEX REQUIREMENTS 2
MARKING 3
GENERAL 3
INSTALLATION 4
SOLENOID VALVE 5
SENSORS 6
OPERATING INSTRUCTIONS 7
CALIBRATION - SEMICONDUCTOR 7
CALIBRATION – HEAD ELECTRONICS 8
DECLARATION OF CONFORMITY 10
ED810 EC-TYPE EXA
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IMPORTANT 1. The equipment supplied must not be modified in any way since modifications will invalidate intrinsic safety certification, MCA and Lloyds approval. 2. Care should be taken during servicing as high voltages may be present on the output contacts. 3. It is important to note that the ED810 contains four Zener Barriers, type ZB1, which are “potted” in epoxy resin. The Zener Barriers contain fuses which once damaged are not replaceable. The fuses inside the Zener Barrier w
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MARKING All units have a rating label which carries the following important information:- Model type: GAS DETECTOR TYPE ED810 Input voltage: 12Vdc/24Vdc (delete as appropriate) Vmax in; Um: 250V Code: [EEx ia] II C Certificate no. Baseefa03ATEX0507 Epsilon x, gas group II (1) G and category: CE marking, Notified body 1180 number: Serial no. (serial number must be entered here) Year of construction: (year of manufacture must b
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INSTALLATION Note only EDL manufactured sensors, which are suitably certified can be connected to the ED810 and fitted in the Hazardous Area. The ED810 control unit and all uncertified equipment should be located in the Safe Area only. Control Unit: The unit should be mounted in a convenient position for the operator away from possible mechanical damage or ingress of moisture and allowing the clear hinged lid to swing open for ease of calibration etc. Remove the front cover by uns
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In addition to the zener barrier fuses (which cannot be replaced) each sensor is individually fused on the base board PCB. If a sensor fails to respond the nominal 5V between blue and brown terminals should be checked and the 160mA quick blow (F) changed if necessary. Sensor Wiring: The Sensor cable should meet the following specification as listed in the Zener Barrier (ZB1) certificate, see page 16. The total capacitance of the cable must not exceed 6.8uF for EDS/C and EDS/P or 8.8uF
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SENSORS Type EDF 1B, 2B, 3B and 3Bfig are semiconductor elements housed in a certified flameproof stainless steel housing. The housing has a male M32 thread which can be screwed into a conduit or suitable junction box. The semiconductor sensors are available in the following types:- a) EDF1B flameproof. Suitable for the detection of flammable gases such as Ammonia, Butane, Propane and some toxic gases, for more gases see list available. b) EDF2B flameproof. Suitable for the det
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OPERATING INSTRUCTIONS When power is first applied the power light should illuminate immediately. The A1 and A2 lights of semiconductor sensors will illuminate within a few seconds and will be ready to be reset after a few minutes, provided the sensors are in clean air. The alarm lights and relays latch and the reset switch must be pressed to clear any alarms. The gas valve can be operated by pressing the “gas on” button. The gas valve will de- energise automatically if the A1 alarm
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EDS/C and EDS/P Transmitters SAFE AREA HAZARDOUS AREA Power/Output Sensor Terminals Terminals -VE I/P (0V) BROWN Blue Brn SENSOR +VE I/P Grn/Yel BLUE 0.1 – 0.5V o/p G/Y EDS/C orP TRANSMITTER ED810 INITIAL SETUP It is vitally important that the ED810 and EDS/C or P transmitter are calibrated together ensuring that the ED810 indicates an alarm at the correct concentration. After installation is complete the following setu
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EDS/P 1. At EDS/P transmitter measure between – I/P and + I/P, ensure voltage reading is in the range 4.0 – 5.4V with a Digital volt meter. 2. Using the Zero adjustment potentiometer on the EDS/P, rotate clockwise until the 50% lamp is just illuminated or 0.3V is measured on the O/P terminal w.r.t 0V. 4. Go to the ED810 Control unit and adjust the A1 potentiometer (located below the A1 light and accessed through the front panel) until the A1 light just illuminates. Rotating clockwise in
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Please note the - ED810 EC-TYPE EXAMINATION CERTIFICATE And the ZB EC-TYPE EXAMINATION CERTIFICATE Graphics have been removed to reduce the size of the document for download purposes. The full manual and certificates can be obtained by contacting Electronic Devices ltd. 10 ED810 INSTRUCTION MANUAL 27-02-07
