Hanwei GE-201 Operating Manual Download Page 1

河南汉威电子有限公司

                                                                   http://www.hwsensor.com 

TEL: 86-371-65333098 65333099  FAX: 86-371-65333090                                      E-mail:  [email protected] 

GE Series Gas Detector with Battery Backup Design 

 

Introduction 

GE series Gas leak alarm is a kind of wall-hung household gas alarm designed to detect 

the concentration of combustible and toxic gases or vapors. It provide a visual and audible 
signals when the gas concentration reaches presetting level, remind you take prompt 
favorable action, you may start up other link equipment, ventilate gas or shut off gas supply 
to avoid Fire, explosion, suffocation, and other evil accident. The alarms are available for 
liquefied petroleum gas  (LPG), natural gas   (Methane), propane, Hydrogen,  town gas, 
smoke, etc. They are not only installed at home, but also used at any other potentially 
hazardous areas. 

MCU control, Reliable without false alarming   
Locale sound and light alarming

Drive Long-distance Alarming System   

Ventilate good air circulation or shut off gas supply link equipment 

 

Technical Conditions 

Operating Voltage

 AC220

±

10% / AC110v

±

10%

 

or DC12V      

Power Consumption

:≤

3W  Size 

Operating Time

 

10

℃~

50

                                    Hum

:<

95

RH 

 

 

Model 

Detecting Gas  

Response time 

Alarming Preset Level (Optional) 

 

GE - 201 

LPG 

20S 

10%LEL 

±

30% 

 

GE - 221 

Combustible gas  

20S 

10%LEL 

±

10% 

 

GE - 401 

Natural Gas  

20S 

5000ppm CH

4

 

±

30% 

 

GE - 601 

Combustible gas  

20S 

2000ppm  LPG 

±

30% 

 

GE - 501 

Coal Gas  

20S 

1000ppm  Coal Gas 

±

30% 

 

GE - 701 

CO 

2.5min 

150ppm  CO 

±

30% 

 

GE- 801 

Hydrogen 

20S 

1000ppm  H

2

 

±

30% 

 

GE - 901 

CO+Combustible gas  

2.5min 

150ppm  CO/1000ppmLPG 

±

30% 

 

Automatic Resume 

 

Can be specified 

 
Optional Function:  Gas Shut Off VALVE

 Output  pulse 10Hz DC8V/Max200mA, When alarming appears; 

Relay Output 

N.O Max AC220V 3A

 

Battery Backup

 

4  hours lasting without other power supply 

 

Operating Manual 

    1

Fix gas alarm on the wall or Roof near the gas cooker or other sources within 2-4m  interval. according to gas sources 

Character, Choose alarm location as follows: 

·

LPG

Fix it within 0.3 meters above the ground (LPG is heavier than Air)   

·

Coal  Gas, Natural Gas

Fix it within 0.3 meters below the Roof ( Combustible gas is lighter than Air) 

·

Avoid such installation

Windows with strong wind, Exit

water fog and drop place

easy polluted or high tem 

environment near Oven, covering around

 

2

Connect the Power supply, (If need ventilate fan, electrovalve other link equipment, please connect corresponding 

circuit firstly.) Preheat the alarm 1 min, the alarm without detecting function.1 MIN later, the alarm enter into 
detecting status. 

3

If the flammable gas in the air reaches the preset alarming concentration, the alarm enter into alarming status, the 

Alarm red LED light or flash,  the buzzer give sound alarming, drive the relay or valve shut off gas supply, If the 
alarm connect the ventilation fan or other relative electronics, it also open automatically, ; At the same time, please 
cut off gas supply promptly, open the window, ask professional worker to remove the fault, The alarm with gas cut 
off valve type shall output one close pulse signal. 

 

In the interest of continued product improvement, we reserve the right to change design features without prior notice    

  

HANWEI ELECTRONICS CO.,LTD 2002/2       

 

Reviews: