Test Products International HXG2 User Manual

Page 6

If the SENSIT® HXG-2 green ready light fails
to operate or if it blinks and the audio does
not work, the batteries need replacement.
Depress the latch using a coin and slide the
battery compartment cover off. Replace the
batteries with 3 fresh “C” alkaline batteries.

NOTE: When replacing batteries observe po-
larity markings in the battery compartment. A
fresh set of alkaline batteries should operate
the unit for approximately 30 hours.

BATTERY REPLACEMENT

4. To pinpoint a leak source it may be neces-
sary to readjust the tick rate. The “Nullable
Tick Rate” feature of the HXG-2 allows the
rate to be slowed and reestablished even in
high gas concentrations. By turning the tick
adjust counterclockwise and reestablishing
a slow tick rate as needed the HXG-2 will con-
tinually identify higher levels of gas thereby
locating the leak source. Remember, an in-
crease in the tick rate means you are getting
closer while a decrease means you are mov-
ing further away from the leak source.

5. To continue searching for a leak while the
alarm is sounding, you may choose to de-
press the “Quiet Alarm” button on the back of
the instrument. This will silence the audible
portion of the alarm and allow the user to lis-
ten to the tick rate pattern. The visual red
flashing light will still be seen when the in-
strument is alarming even if the “Quiet Alarm”
button is used. You will note that the tick rate
is independent of the alarm which is calibrated
to the appropriate gas concentration.

6. The earphone can be plugged into the unit
if there is high background noise or the op-
erator does not want to disturb other people.
The speaker is disabled by inserting the ear-
phone.

OPERATING TIPS continued

7. If the green light flashes or does not illumi-
nate this is an indication that the batteries
need replacement.

8. The unit will respond to some leak finding
solutions (soap). Use your SENSIT

HXG-2

instrument first.

9. If the sensor is overexposed to some
gases, the unit may take an extended period
of time to return to calibrated ready condition.

10. To increase battery life turn the unit to “OFF”
when not in use.