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1.

 

SPECIFICATIONS   

1-1.

 

  INDICATOR 

Model 

Gas Leak Detector EW-403 

Detectable Gases 

LPG, LNG, City Gas, Combustible Gas, Toxic Gas (NH3.H2) 

Power supply 

AC 220V. 60㎐ 

Power consumption 

Normal condition - 2.5W. Alarm condition - 3W 

Operating Temperature 

&Humidity 

0℃  ~ 40℃, Below 95%(RH) 

Detection Range 

0 ~ 100% LEL 

Alarm point 

Combustible gas- below 25% LEL (The set point is 18% LEL now) 

Response time 

Within 20 sec 

Concentration display 

3 FND 10 LED bar 

Visual & audible Alarm 

Yellow LED blinking, Buzzer Sound (above 70dB) 

Operating 

Green LED 

Fault 

Yellow LED, buzzer sound (short sound) 

Warmup Time 

about 1 min. 

Cabling 

VCT,CVVS (above 0.75mm) 

Dimensions 

149*259*87mm 

Output 

DC 12V (20~30mA). Dry contact (COM.NO.NC) 

Relay contact 

AC 220, 1A 

Weight 

about 1,718g 

1-2.

 

  SENSOR 

Model 

EW EX  Ⅱ  B 100 

Detectable Gases 

LPG, LNG, City Gas, Combustible Gas, Toxic Gas 

Detection Technique 

Catalytic combustion, diffusion 

Operating Temperature & 

Humidity 

-20℃~50℃. below 95% (RH) 

Explosion-Proof 

Exd  Ⅱ  BT6   

Conduit entry 

16mm inside diameter, 23mm outside diameter 

Dimensions 

140*142*75 mm 

Weight 

1,016g 

Detection range 

0~100%(LEL) 

Response time 

within 20 sec 

Summary of Contents for EW-403

Page 1: ...DETECTOR REFERANCE MANUAL MODEL EW 403 LNG LPG NOTICE Surely be aware of the specifications by skilled worker prior to using the product Surely keep the specifications to where you are always able to...

Page 2: ...PART FUNCTION 2 1 INDICATOR 2 2 SENSOR 3 COMPOSITION 3 1 INDICATOR 3 2 SENSOR 4 OPERATIONAL SYSTEM 5 INSTALLATION 5 1 Where to install 5 2 Installation drawing 6 INSTRUCTION CAUTIONS 7 DIMENSIONS User...

Page 3: ...arm Yellow LED blinking Buzzer Sound above 70dB Operating Green LED Fault Yellow LED buzzer sound short sound Warmup Time about 1 min Cabling VCT CVVS above 0 75mm Dimensions 149 259 87mm Output DC 12...

Page 4: ...d again Buzzer becomes audible again Reset button It allows the user to reset the value of the concentration But if the Concentration of gas exceeds alarm point the alarm condition is not reset LED do...

Page 5: ...ng the detector by bolts or nails Sensor protection filter Sensor protection filter bronze 300mesh Ground earth M4x6mm Cable grand Do sealing fitting properly or access using cable glands passed the s...

Page 6: ...In normal condition COM terminal is connected with NC terminal And in alarm condition COM terminal is connected with NO terminal Sensor connector terminal block Please match the wire with terminals i...

Page 7: ...oncentration light The brightness of yellow light changes in proportion to the Concentration of gas eliminated in normal condition 4 Power supply light Green LED is lit while supplied with power Blue...

Page 8: ...ns and condition If you are to detect the gas that is heavier than air sensor be mounted at Floor or the wall within 30cm from floor and if you are to detect the Gas that is lighter than air sensor sh...

Page 9: ...minute in 1minute the detector begins to operate Fault light ERROR on the UNIT panel gets lit when the fuse for the Sensor has blown or the connection wire between the sensor and The indicator is dis...

Page 10: ...ion of the Sensor 5 Be careful not to damage the power cord 6 Be cautious about using the silicon glue which could affect the Sensor Silicon glue could cause malfunctioning 7 Please use the rated volt...

Page 11: ...7 Dimensions...

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