Electronic Devices Limited ED810 Скачать руководство пользователя страница 22 | Manualshive

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Electronic Devices Limited ED810 Скачать руководство пользователя страница 22

ED810 INSTRUCTION MANUAL 24-06-11

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Содержание ED810

Страница 1: ...NDUCTOR 7 CALIBRATION HEAD ELECTRONICS 8 DECLARATION OF CONFORMITY 10 ED810 EC TYPE EXAMINATION CERTIFICATE 13 ZB EC TYPE EXAMINATION CERTIFICATE 18 ELECTRONIC DEVICES LIM ITED ENIGM A HOUSE ENIGM A BUSINESS PARK M ALVERN W ORCESTERSHIRE W R14 1GD ENGLAND TELEPHONE 44 0 1684 891500 FACSIM ILE 44 0 1684 891600 EM AIL sales electronicdevice dem on co uk W EB SITE www electronicdevice dem on co uk E ...

Страница 2: ...personnel 2 This apparatus has been designed in accordance with EN50 014 and EN50 020 therefore the apparatus has been designed to meet the fault tolerant requirements of Associate Apparatus for Category ia 3 The installation and maintenance must be in accordance with all appropriate international national and local standard codes of practice and site regulations for intrinsically safe apparatus 4...

Страница 3: ...on should be given to the Hazardous Area common connection terminal This should normally be connected to a good quality earth suitable for intrinsically safe equipment However this terminal is internally connected to 0V VE of the DC supply and on insulated return installations may produce an earth fault Isolation can be provided by using a DC DC inverter or if mains is available a suitable linear ...

Страница 4: ...ld not allow greater than 0 25V drop along its length when carrying 1A plus current required for ancillary equipment connected Twin core double insulated 15A cable is normally adequate The main DC input fuse is normally 2A rated but may be increased to 3A allowing for ancillary equipment External fusing may be necessary and should be considered The DC supply should not deviate by more than 25 of t...

Страница 5: ... functions A fused 12V or 24V supply is available on terminal 2 for the operation of low power sounders and beacons the installation engineer must provide the links to provide the required functions Remember any sounders or beacons located in the Hazardous Area must be certified Flameproof or Intrinsically Safe if fed via an external zener barrier contact EDL for further information FIG 2 FIG 3 Re...

Страница 6: ...r suitable for the detection of various toxic gases Many different electrochemical cells are available and EDL should be consulted to advise on correct sensor type The EDS P IS Transmitter is a intrinsically safe junction box complete with head electronics and catalytic pellistor gas sensor suitable for the detection of flammable gases Contact EDL for advice on correct sensor type Siting The senso...

Страница 7: ...pproximately 30minutes A hidden switch is located to the left of the reset switch Pressed through the front panel using a small screwdriver all Alarms are Isolated and the Fault Buzzer sounds Operate the hidden switch to the right of the Reset switch keeping it pressed for several seconds and all Alarms will be returned to the operational state and the Fault Buzzer will silence CALIBRATION Before ...

Страница 8: ...our low alarm ensure the calibration of the EDSC Transmitter using the EDSC calibration instructions Whilst the EDSC is giving the correct output go to the ED810 control unit and adjust the A1 located under the A1 light accessed through the front panel potentiometer until the A1 light just illuminates Rotating clockwise increases sensitivity until the A1 light just illuminates if the light comes o...

Страница 9: ... illuminates if the light comes on prematurely wind anticlockwise whilst continuously pressing the reset switch until the light goes out and then clockwise until it just illuminates 3 Back at the EDS P again using the Zero adjustment potentiometer on the EDS P rotate clockwise until the 100 lamp is just illuminated or 0 5V is measured on the O P terminal w r t 0V 4 Go to the ED810 Control unit and...

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