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    4. As for test operation of gas leak alarm device, in case of pushing the 

circuit test button, density signal lamp is slowly up as gas is 

detected, and then when alarm setting device is abnormal, alarm signal 

lamp is lighted and alarm is sounded.  

    5. In case of pushing the buzzer button in order to stop the alarm sound, 

normal operation will be made as it becomes in normal.   

    6. In case disconnection signal and trouble lamp are lighted, to confirm 

the detection device and connection status.  

   

 

  〈Instructions〉   

1. Optional disassembly, repair or alteration is not allowed by an              

person except the relevant personnel of our company. 

2.  As for the product equipped with earthing terminal, earthing 

 line shall be surely installed  

     3. In case of connecting receiver device and detection device, the same 

manufacturing number shall be connected.  

     4. To confirm the voltage before installation, to match 110V/220V 

conversion switch to operation voltage.   

     5. Do not use any other gas except application objective gas. 

     6. Do not use it in the place where there is high vapor or strong wind.  

     7. Please check the detection element more than one time per year.  

 

 

TONGPRASERTCHAI CO.,LTD.

Summary of Contents for EW-401

Page 1: ...GAS LEAK DETECTOR MODEL EW 401 Explanations EWOO ENGINEERING CO LTD T O N G P R A S E R T C H A I C O L T D ...

Page 2: ... 1 2 Specifications of the Detector 2 Function of Each Device and Title Explanations 2 1 Indicator 2 2 Detector 3 Wiring Diagram 4 Operation System Diagram 5 Installation Place and Installation Drawing 6 Operation Method and Instructions T O N G P R A S E R T C H A I C O L T D ...

Page 3: ...ble Indicator Lighting of LED LAMP Red Warm up Time 60 seconds Connection Cable VCT or CVVS above O 75mm SQ Use over Dimension 114 250 80 Outer Output DC 12V 20 30mA Output Contact point of non voltage contact point NO NC COM Relay contact point Capacity of Contact Point AC 110 1A DC 12 24 2A Weight Some 1 840g 1 2 Specifications of the Detector Type Expansion Type Detector Gases LPG LNG City Gas ...

Page 4: ...be reversed when reversion switch is pushed after Alarm level meter buzzer relay it drops on the densitometer Buzzer stop Lamp Gas Density Indicator In case of pushing the switch against Expanded gas density is marked by lamp level meter Alarm buzzer turns off and lamp around LEL Indication switch and etc turn off Table indicating lamp level meter and LEL conversion Buzzer Stop Switch In case of p...

Page 5: ... Filter Ground earth Sensor protection filter bronze 300mesh M4 6mm Cover Fixing bolt Molded Cover The bolt for fixing cover and body of Detector Cable grand Molded Body Cable Insert Device Wire Cable pipe or fiexible screw Female screw VCTF 0 75x3C Blue Brown Green T O N G P R A S E R T C H A I C O L T D ...

Page 6: ...are connected at ordinary times In case of alarming COM terminal and NO terminal are connected Sensor Connection Terminal Blue Brown Green It is connected to be matched with wire colors arranged in detection device Blue Electric Line Brown Electric Line Green Signal Line Signal Output In case of alarming it can be used for shut off device or other various devices with DC12V 30mA output T O N G P R...

Page 7: ...4 Operation System Diagram T O N G P R A S E R T C H A I C O L T D ...

Page 8: ...teristics of gas instructions structure of each device and etc 3 As for installation height of detection device if the gas heavier than air it shall be installed within 30cm above the floor while if the one lighter than air it shall be installed within 30cm below the ceiling 4 Installation place for receiver device of gas leak alarm device shall be installed in the proper place to take every measu...

Page 9: ... after finishing the connection of receiver device and detection device 2 In case power supply switch turns on power supply lamp will be flickered for some one minute and in case early stabilization time is passed power supply lamp will stops flickering and be lighted and circuit will be operated in normal way 3 In case detection device is disconnected buzzer is sounded and trouble signal is light...

Page 10: ...tatus Instructions 1 Optional disassembly repair or alteration is not allowed by an person except the relevant personnel of our company 2 As for the product equipped with earthing terminal earthing line shall be surely installed 3 In case of connecting receiver device and detection device the same manufacturing number shall be connected 4 To confirm the voltage before installation to match 110V 22...

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