Instruction Manual

6
3.2. RECEIVER
Display Two digit blue LED display
Aligators 2 Croc clips-red*1,black*1
Power 9V battery
Power current 23mA
Operating temperature 0℃ to 40℃(32℉ to 104℉)
Storage temperature –10℃ to 50℃(14℉ to 122℉)
Continuity test Beep if less than 100Ω
Cable voltage check 5V to 16V DC
Function
Range
3. PRODUCT DESCRIPTION
1 - Sensor Tip Guard & Sensor (internal)
2 - Gooseneck Probe
3 - Alarm Light
4 - Ready Light (Power-On)
5 - Power ON/OFF Slide Switch
6 - Earphone Jack
7 - Tic Rate (Sensitivity) Adjustment
8 - Probe Clip
9 - Hand handle
10 - Batteries cover
4. OPERATION
Switch on the gas-leak detector by sliding the ON/OFF button and the
READY light is glowing. The Combustible Gas Leak Detector runs through
a one-minute warm-up and self-zeroing sequence when it is first turned
on in fresh air. The alarm of the instrument may be very loud without
contact of any gas. That is caused by the high Tic Rate preset in rotary
wheel.
4.1. Rate (Sensitivity) Adjustment
Each time the instrument is put into service, you should conduct a quick
functional test. Adjust the Tic Rate to non-alarm level. Then, simply
expose the sensor to a known leak, like a cigarette lighter, or pass the
probe over a drop of combustible fluid. After the initial warm-up, the
instrument can be used to detect combustible gasses. When the sensor in
the probe tip detects a combustible gas, the tic rate will increase and the
instrument sounds a warbling tone while the ALARM light is illuminated.
As the concentration of gas increases so does the tic rate.
If the situation calls for quiet operation, or if background noise makes it
difficult to hear the built-in speaker, you can use an earphone. The jack is
at the top of the instrument. Note that listening to the alarm or tic
through the earphone is very loud.
If the READY light is off, the batteries are low. They should be replaced
immediately. Low batteries will adversely affect the instrument’s reliability.
See the replacement procedures.
4.2. Adjusting the Tic Rate (Sensitivity)
The tic rate tells you when the sensor (in the tip of the instrument) is
getting close to a leaking gas.
You can control the tic rate using the rotary wheel in the center of the
instrument.
Ÿ Move the wheel clockwise to increase the frequency