LK-GA502
Gas Detector
Gas Alarm for
Natural or Bottled (LPG) Gas
With Relay Output
User’s Guide
ATTENTION:
Please take a few minutes to thoroughly read
this manual, which should be saved for future reference and
passed on to any subsequent owner.
IMPORTANT! READ ALL INSTRUCTIONS BEFORE
INSTALLATION AND KEEP THIS MANUAL NEAR THE
ALARM FOR FUTURE REFERENCE.
CONTENTS OF THIS MANUAL
1 – DESCRIPTION
2 – FEATURES
3 -- TECHNICAL SPECIFICATION
4 -- INSTALLATION INSTRUCTIONS
5 -- OPERATION AND TESTING
6 -- GAS SAFETY GUIDE
7 -- HOME SAFETY GUIDE
8 -- SERVICE AND WARRANTY
1. DESCRIPTION
The gas alarm is designed for single station use. Small
and compact, the design and color makes it ideal for
use in the home, small commercial properties, and
recreational vehicles. It is intended to detect leakage of
natural gas (methane gas), town gas, and bottled gas
(propane gas). The unit is designed for DC wire-in
applications. The gas alarm can be mounted high (for
methane gas) or low (for propane (LPG) gas). It is
equipped with a sturdy metal mounting bracket for
quick, easy, and secure installation.
2. FEATURES
Detect all sorts of combustible gases, natural gas
(methane), bottled gas (propane), LPG (Liquefied
petroleum Gas), LNG (Liquefied natural gas), coal
gas, including town gas.
Easy to install, mounting bracket included.
Loud 85dB alarm and LED warning light.
High quality durable sensor.
Self diagnostic function by MCU intelligent software.
Excellent reliability & High stability.
Ideal for all kitchens.
3. TECHNICAL SPECIFICATIONS
Unit Dimensions: 103mm (D) x 55 mm (H)
Color: Ceiling White
Weight: 155g
Operating Temperature: -10°C to +50°C
Ambient Humidity:
≤
95% RH
Alarm Horn: 85dB at 3m (10 feet)
Operating Voltage: DC9-28V
Power Consumption: <1.5W (Standby), <5W (Alarm)
Value of Detection Threshold (Lower Explosive Limit):
Natural Gas: 7500ppm (15% LEL)
LPG: 2000PPM (10% LEL)
Coal Gas: 800PPM (2% LEL)
Method of Alarm: Flashing Red LED with 85dB alarm
Warm Up Time: approximately 60 Seconds
Alarm Output: Relay Output (N/O 2A@DC24V)
4. INSTALLATION INSTRUCTIONS
The Gas Alarm is intended to detect leakage of natural
gas, town gas and bottled gas. It is intended for
installation in the home, small commercial properties,
and recreational vehicles.
Installation shall only be undertaken by technicians
holding a certificate issued by an authorized
distributor.
For detecting natural gas (lighter than air), the
alarm should be installed within 30 centimeters
below the ceiling and the maximum distance away
from the furnace or gas appliances is 8 meters.
For detecting LPG (heavier than air), the alarm
should be installed within 30 centimeters above the
floor and the maximum distance away from the
furnace or gas appliances is 4 meters.
The alarm should not be located close to any
obstacles preventing natural air circulation. It should
also not be located in a draft or close to a cooker
(cooking smells and other fumes can have a bad
influence on gas detection).
The detector can be connected with Security alarm
panel as Figure1. Relay output signal can be
changed from Normal Close(NC) to Normal
Open(NO) by Jump JP1 on the PCB board.
The detector can be connected with conventional
alarm panel as Figure 2 or Figure3.
For your convenience,
write down the following information.
If you call Us for Service, these are the first questions
you will be asked.
Gas Alarm Model Number (located on back of alarm):
Gas Alarm Assembly Number (Located on back of alarm):
Date of Purchase:
Where Purchased:
