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| Gas Sensor |
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| GD Series gas leak larm with multi-option
function |
Introduction
GD 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 pressing 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 areaes.
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¡À10%/AC110V¡À10% or DC12V
Power consumption: ¡Ü3W
Operation Time: -10¡æ ~50 ¡æ Hum: <95%RH
|
| Model |
Detecting Gas |
Response Time |
Alarming Preset Level (Optional) |
| GD-201 |
LPG |
¡Ü20S |
10%LEL ¡À30% |
| GD-221 |
Combustible gas |
¡Ü20S |
10%LEL ¡À10% |
| GD-401 |
Natural Gas |
¡Ü20S |
5000ppmCH4 ¡À30% |
| GD-501 |
Coal Gas |
¡Ü20S |
1000ppm Coal Gas ¡À30% |
| GD-601 |
Combustible Gas |
¡Ü20S |
2000ppm LPG ¡À30% |
| GD-701 |
CO |
¡Ü2.5min |
150ppm CO ¡À30% |
| GD-801 |
Hydrogen |
¡Ü20S |
1000ppm H2 ¡À30% |
| GD-901 |
CO+Combustible Gas |
¡Ü2.5min |
150ppm CO/1000ppm LGP ¡À30% |
| Automatic Resume |
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Can be specified |
Optional Function: Gas Shut Off VALVE¡õ, Relay¡õ, Output¡õ, Battery
Backup¡õ, LCD inducation¡õ |
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 temperature environment near
Oven, covering around.
2. Connect the Power supply, (if need ventilate fax, electrovalve
other link equipment, please connect corresponding circuit firstly.)
Preheat the alarm 1 min, the power on green LED, WARN-UP yellow
LED both light, the alarm without detecting function. 1 MIN later,
The warm-up LED black out, the alarm enter in to detecting status.
3. If the flammable gas in the air reaches the present 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.
If the yellow(Fault) LED light, it means the gas alarm has fault
itself, please contact distributor to find solution.
Operating Button:
W-UP: Stop 1 MIN preheating when press it, the Warm-up Yellow LED
black out, the alarm enter into detecting status.
RELAY: Relay control button, during the detector status, press this
button, you can control relay work by hand.
In the interest of continued improvement, we reserve the right
to change design features without prior notice. |
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