Display
1. Five-LED row (methane)
2. Five-LED row (propane)
3. Probe display (lit when probe ready)
4. On / Off indicator & battery status display for "OK"
5. LED for battery status "too low"
Operation
Switch on
Press On/Off switch of the device for longer than 2 seconds. If the device is on and the battery status
is "OK", this is indicated by the LED No.4. To ensure accurate results, the warm up of device should
be in a clear warm ambient air (<60 seconds).
The device will automatically turn off after 10 minutes of non use. The device can also turn off by
pressing On/Off switch.
Warm-up status
The probe LED (No.3) don’t lights when the device is switched on, but it is not yet up to operating
temperature. The warm-up takes less than 60 seconds. The operating temperature is reached, when
OK LED on the display lights.
While warming up a special compensation circuitry protects the device against deviations by a change
in environment.
The unit must be re-heat after each turning on again.
Whisper
The unit will beep every second to indicate the correct operation of the device. The tone interval is
shorter, the higher the existing gas concentration.
When using headphones, the device automatically switches to whisper. The sound can be heard only
through headphones yet.
Even without headphones, the whisper mode can be used by the switch for the whisper.
Leak testing
To detect a gas leak in a gas line, proceed as follows:
Get closer to the probe of the gas line, insert the probe slowly along the gas line. Repeat this process
on the opposite side of the gas line. If you approach a gas leak, the LED row will light and the alarm
interval sounds shorter. The device requires at least two minutes, until another measurement process
can be made.
Replace battery
If the battery warning light (# 5) for a low battery
status lights, the battery must be replaced with
a new one. Do this, remove the two Phillips
screws on the back, remove the cover and
replace the batteries.
