ed210 gas detector - Electronic Devices
Contents
1. I S Flameproof sensors EDF 1A EDF 2A EDF3A DIMENSIONS ww G8 L 235 mm Ww OLL 185 mm ED210 GAS DETECTOR INSTALLATION THE ED210 CONTROL PANEL The control panel should be mounted in a convenient position for the operator away from possible mechanical damage or ingress of moisture and allowing the front panel to swing for ease of calibration etc The front panel is opened by releasing the blue catch on the right hand side of the transparent lid The enclosure is secured to a wall or bulkhead by using the appropriate method detailed in the FIBOX leaflet enclosed Sufficient clearance should be allowed for the cables to enter via cable glands fitted in the bottom face without undue kinking Without external devices the normal maximum consumption is less than 1A so that power supply cable should a have 1A current capacity minimum and b not permit more than 0 25V drop along its length 12V or 24V DC versions In practice unless lengths greater than 50m are necessary then 15A current capability cable is suitable The input voltage should be in the range 10 5 to 14V 12V and 21 5 to 28V 24V It is advisable to wire the gas detector via its own main switch so that it may become operational without having other electrical equipment energised This enables a test for gas to be made without danger of explosion through spark ignition An HBC 2A fuse max should be fitted in the live lead of the mains version SENSORS2. If Explosion Proof Sensors are to be fitted then a only competent personnel should undertake the installation and b the instructions supplied with the Sensors must be followed The polypropylene Sensors normally supplied are mounted in the spring clips provided and a suitable length of cable should be easily detachable to allow for calibration A connection junction box must be screwed to the wall so that it is impossible to disconnect them accidentally The sensor should be mounted in the spring clip so that the ventilation holes are at the bottom and the cable is at the top of the Sensor case Should damage occur due to the ingress of water or other foreign media the Sensor must be replaced SITTING The Sensor Heads should be placed lower than gas appliances when the gas to be detected is heavier than air If the gas is lighter than air then the Sensors should be placed above possible sources of gas leaks Attention should be given to the probable gas flow in the particular installation concerned so as to site the Sensor in the most advantageous position In sleeping or living quarters particularly when heating appliances may consume oxygen it may be advisable to mount one of the Sensors to detect Carbon Monoxide i e just above floor level AUDIBLE AND VISUAL ALARMS Terminals 3 and 4 The standard ED6 sounder beacon consumes a minimum current and so the cable size is almost negligible If more powerful Alarms are required the maximum cu
3. before attempting the calibration procedure This is where the set has previously been in service for long periods If the sensor has been out of commission for several weeks then the sensor should be allowed at least 24 hours continuous operation before the calibration procedure is attempted ii Open the front panel to allow easy access to the two small Blue and White potentiometers mounted on the printed circuit board iii After the initial stabilisation period outlined in i above has been carried out rotate the adjusting presets on the PCB fully anticlockwise and press the Reset switch so that the red warning lights cancel If the lights do not cancel then a fault exists or gas is present if the former a competent technician or Electronic Devices Ltd must be consulted iv Place each sensor into the gas concentration of the particular gas concerned and allow a few seconds for the gas to penetrate the sensor Then slowly rotate the appropriate potentiometer clockwise until the appropriate red warning light just illuminates Repeat this procedure for the next sensor ED210 GAS DETECTOR REACTION TO DIFFERENT GASES For guidance purposes only we list below the approximate equivalent alarm level for other gases at the 0 5 Butane setting for a Type 1 Sensor LEL in air Equivilent Density in air Vol 5 detection level Air 1 gt e w a s CARBON MONOXIDE At the preset level of 25 LEL Propane the Sensors will r
4. fault lights IN SERVICE TESTING A full test of a gas detector must involve immersing the Sensors in an appropriate gas concentration and ensuring that the appropriate alarms operate However a quick test of Sensor wiring and Control Unit electronics may be made by momentarily connecting a 3 3Kohm resistor between the Brown and Green Yellow leads in the side of the plug socket assembly near the Sensor Head This action simulates the Sensor reaction at approximately 25 LEL Butane Propane etc If a Sensor fails to reset as indicated by the red lights being permanently illuminated a quick test is to remove the Sensor wiring at the Control Unit or at the Sensor plug and socket assembly and ensure that the red lights extinguish by depressing the Reset switch If this is the case the problem is in the Sensor and not in the Control Unit If the red lights remain on the problem is in the Control Unit itself Advice should then be sought from Electronic Devices Ltd CALIBRATION Calibration must be performed on site after installation and therafter once every 12 months or sooner if necessary Before despatch each gas sensor is approximately set to give the alarm at standard alarm levels for the gas concerned Note that on site calibration is a requirement of the Factory Inspectorate This calibration procedure should then be carried out at periodic intervals The procedure is as follows i Allow the sensors to warm up for at least one hour
5. TF app ELECTRONIC DEVICES LTD ED210 GAS DETECTOR INSTALLATION MANUAL Address Enigma House Enigma Business Park Malvern Worcestershire WR14 1GD Tel 44 0 1684 891500 Fax 44 0 1684 891600 Email sales electronic devices co uk Website www electronic devices co uk PAGE GENERAL SPECIFICATION FUNCTION DIAGRAM CONNECTION LIST CONNECTION DIAGRAM SUITABLE SENSORS DIMENSIONS DIAGRAM INSTALLATION OPERATION TESTING AND CALIBRATION C ED210 IM REV 2 05 05 2015 ED210 GAS DETECTOR 2 GENERAL IMPORTANT DANGEROUS VOLTAGES ARE PRESENT WITIN THE 240V CONTROL UNIT THE EQUIPMENT MUST NOT BE MODIFIED IN ANY WAY AND MUST BE INSTALLED AND SERVICED BY COMPETENT PERSONNEL ONLY IF INDOUBT CONSULT ELECTRONIC DEVICES LTD 01684 891500 The ED210 Gas Detector is a fixed installation flammable gas detection system that will indicate gas concentrations well below the lower explosive limit LEL of most explosive gases In addition some toxic gases are detected e g Carbon Monoxide which is a valuable extra feature For more information consult the list on Page 7 and in the sales leaflet The ED210 is available for 12V D C 24V D C and 240V 50Hz operation It is important that the correct model is chosen for the particular installation this may be checked from the combined serial number voltage supply label on the side of the Control Unit containing the cable entry grommets Attention is drawn to the
6. er there is gas around the Sensor Head or the Unit is incorrectly wired If this sequence is correct then proceed as follows If a gas valve is fitted the gas valve may be energised using the following procedure Operate the Gas Enable switch by pressing the Gas On switch momentarily Gas should now be available Note that the green gas light should illuminate when the Gas Enable switch is operated In the event of a gas leak the Valve will be closed and the gas light will extinguish When the gas has been cleared it will be necessary to depress the Gas On switch again before gas will flow The Gas Enable switch is a convenient position at which to remotely operate the gas valve in normal circumstances The Gas Off switch turns the gas valve off It may be necessary to ensure that all unlit burners on a gas stove pilot lights etc are switched off before turning the gas valve on Under fault conditions if the Valve is disconnected then the gas light will extinguish Whenever the gas warning light illuminates it will remain in that condition thereby stopping gas from flowing etc until both the gas has been cleared and the Reset switch depressed To avoid unnecessary Audible Alarms the Alarm Accept button should be pressed in the event of a warning and this will immediately stop the Audible Alarms but will not allow the gas to flow Faults are indicated by an internal audio alarm and the front panel sensor
7. espond to the presence of Carbon Monoxide well before 20 of its LEL More serious however are the toxic effects of Carbon Monoxide on the human body summarized below Vol Pure CO in Air Symptoms 0 6 Headache dizziness nausea in 20 minutes Death in 2 hours 0 32 Headache etc within 10 minutes Death in 30 minutes 0 64 Headache etc within 2 minutes Death in 15 minutes 1 28 Death in 3 minutes Sensitivity could be adjusted so that sensors will respond to 0 03 Carbon Monoxide in air Such super sensitivity would mean however that they react to stray whiffs of cigarette smoke and other fumes causing incessant false alarms At the present sensitivity our sensors will not respond until 1 0 Carbon Monoxide in air has accumulated Even so they give valuable warning of any sudden appearance of Carbon Monoxide especially via leaking exhaust systems because other hydrocarbons will be present If Carbon Monoxide is thought to be a great danger in a particular situation then the sensitivity should be reset to a lower level It is emphasized however that the sensor used is not particularly designed for the detection of Carbon Monoxide it is only a valuable additional feature If Carbon Monoxide is an interfering gas we can supply a different sensor type that is less susceptible while maintaining excellent response to other gases ED210 GAS DETECTOR
8. he enclosure Terminal number Additional 240V ED210 Terminal Connections 1 VE Valve drive N B Special 13 C C Volt Free Contact If Fitted 2 VE 3 8 12V 24V Valve from EDL only 14 NO NO 3 VE External Audible 15 NC NC 4 VE Alarm 16 L Live 240VAC Mains Input If Fitted 5 Brown Sensor 1 17 N Neutral 6 Green Yellow 3 way terminal block 18 E Earth 7 Blue 8 Brown Sensor 2 9 Green Yellow 3 way terminal block 10 Blue 11 VE supply I P Supply input 12VDC or 24VDC 12 VE supply I P Supply input VRI Use VR1 to adjust SENSOR 1 ALARM VR Use VRZ to adjust SENSOR 2 ALARM C Clockwise turn sensitivity to Anti clockwise sensitivity to VRI increases gas turn decreases gas VRZ C Clockwise turn increases sensitivity to gas Anti clockwise turn decreases sensitivity to gas BR G Y BL BR G Y BL A A hae M VALVE AUDIO SENSOR ONE SENSOR TWO DC I P MAINS I P VOLT FREE CONTACTS AND MAINS I P FOR 240V CONTROL PANEL 13 14 15 16 17 18 C NC NO L N E VFC MAINS I P 123 45 6 789101112 BR G Y BL BR G Y BL VALVE AUDIO SENSOR ONE SENSOR TWO DC I P ED210 GAS DETECTOR SUITABLE SENSORS If either of the sensor connection terminals are not in use then the use of a 47K resistor between Brown Green yellow terminals can be used to stop the unit displaying a fault The ED210 is compatible with type A sensors Non I S EDP 1A EDP 2A EDP 3A
9. need for accurate calibration using a sample of the actual hazardous gas in a particular location see Page 5 The Factory Inspectorate and Electronic Devices Ltd recommend that the procedure is carried out on first installation and regularly thereafter The Operating Procedure explains how valuable indication of the service status of the equipment may be obtained by simple observation of the Control Unit indicators when switching on To meet the statutory requirements The equipment may be upgraded by fitting Explosion Proof Sensors Exd SPECIFICATION Power input 12VDC 24VDC and 240VDC models available Please advise on order Typical current consumption in standby condition mA Both zones in alarm condition mA ED6 sounder mA ENCLOSURE DIMENSIONS See diagram on page 5 FUNCTION DIAGRAM llluminates green when power input is active POWER e Illuminates red when sensor in alarm condition SENSOR ALARM llluminates amber when sensor in fault condition SENSOR FAULT Resets control panel and detectors Accepts alarms and silences sounders Operates connected solenoid valve EDL valve only Deactivates connected solenoid valve EDL valve only Note EDL can supply a low consumption valve ED210 GAS DETECTOR CONNECTIONS Connections to external field wiring are made via the PCB mounted terminals on the circuit board attached to the panel Cable entry should be made via cable glands in the base of t
10. rrent that can be drawn is 0 5A for a 12 24V version The Alarms are polarised so that connections should be as in the block diagram The sound emitted from the ED6 may be varied Please see the leaflet sent with the sounder Remote Valve Terminals 1 and 2 Where a low pressure valve is being connected directly to the Control Unit check that the voltage marked on the side of the Valve is the same as that on the Control Unit The Valve must be supported by the bracket provided Ensure that the Valve is connected correctly into the pipe work note that there is an inlet and an outlet clearly marked on the Valve and this must be observed Also note that the Valve is a low pressure type having a capability of controlling 1 5 PSI maximum therefore it should be fitted after the standard Calor Gas regulator in the gas supply line It is suitable for Butane and Propane LPG cylinders supplied by the Calor Gas Co Ltd and others IMPORTANT The valve coil and the control unit circuitry are matched electrically Failure to use the valve supplied by Electronic Devices Ltd can cause misoperation and may be unsafe If in doubt consult Electronic Devices Ltd ED210 GAS DETECTOR OPERATION amp TESTING OPERATING INSTRUCTIONS When first switched on from cold the red warning lights should illuminate within a few seconds and then should remain on After a few minutes depress the Reset switch and the red lights should cancel If they do not then eith
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