PNI JL269, User Manual, Page: 5 / 99

4. Operation
4.1 Power on
Press and hold “ ” for more than 2 seconds, the detector will power
on and enters into self-testing status. All LED lights will be lighted on and
then off alternately. At the same time, the buzzer and sensor start self-test.
After self-test, the sensor will proceed zero translation within 5 seconds, and
then the detector enters into detecting status. If sensor fault or zero
translation doesn’t finish within 5 seconds, please keep waiting. Check
“
OL” light. After it turns off, zero translation finishes and the detector
will enter into detecting status.
4.2 Impact Test
It is suggested to do Impact Test before using every day, so as to make
sure the detector work normally.
Test method:
After turning on the detector, put it into the gas with certain known
level or standard gas. If the display, alarm signal and buttons work normally,
then it can be carried out for detecting. If no response to the gas or
“
Fault” light is on, please contact the seller for solving the problem.
4.3 Detecting
Put the sensor (which is at the front end of flexible test bar) into the gas
environment. The quantity of LED lights and sound frequency will show the
gas concentration. With gas concentration increasing, first more and more
green LED lights will be turned on and the buzzer frequency increases.
When the concentration exceeds the green LED’s range, yellow LED lights
will be turned on, and then red LED lights. At the same time, the sound
frequency interval will turn higher. If the concentration reaches the highest of
the detection range, the “
OL” LED will light.
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