5
OPERATION
BASIC OPERATION
1. Turn the instrument ON by sliding the High/Low/OFF switch to either
LOW or HIGH in a non-contaminated environment i.e. Fresh air
2. The power light will be illuminated green when the unit is turned on.
If the batteries are too low to operate the instrument this light will be
RED.
3. The instrument can be switched off at any time by moving the switch
to OFF. It is advisable to turn off in fresh air.
4. If the tip of the sensor becomes wet shake off excess and allow to
dry naturally.
LOW SENSITIVITY MODE
With the switch set to LOW:
5. The LED array will cycle from green to yellow, and then red
indicating the instrument is performing an auto-zero.
6. Once the auto-zero is complete the green LED will settle to a steady
2 second flash rate accomp
anied by a “bip”. This indicates the
instrument is ready for use.
7. To pinpoint a leak source, move the sensor tip along the area to be
checked. The tick rate will increase as you approach a leak and the
green LED will flash faster. As concentration of gas increases the
LED array will progressively move from flashing yellow, orange and
red (highest).
8. The tick rate will decrease and the lights will go out when you move
away from the leak source.