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CLEANING INSTRUCTIONS
The GX4
should be kept clean to insure optimal performance. Different parts of the GX4
®
should be cleaned using these instructions:
Sensor Cartridge Contacts:
The contacts on the unit and on the cartridges need to be kept clean. Clean dust and dirt off
of the contacts with a dry paper towel or cloth. Occasionally clean the contacts with cotton
swabs dipped in isopropyl alcohol. For black streaks from contacts rubbing, use a pencil
eraser or a finger tip. If the cartridge is not registering when put into the GX4
the contacts need to be rubbed with a finger tip.
Keypad:
Clean the keypad with mild household cleaner. For paint on the keypad, carefully clean with
MEK or other paint cleaning agents. Be sure not to get MEK or other agents on the cartridge
contacts or the cartridge sensors.
Sensors:
If the white sensor in the cartridge is dirty, replace the cartridge with a new one. This should
be checked monthly.
Sintered Brass Filters:
If the inlet filter is dirty or clogged, replace it with a new one (08-429). (Do not remove the
sintered brass filter from the Manifold Tube. If it is dirty or clogged replace the Manifold Tube
(08-422). These should be checked weekly.
Power/AUX Receptacles:
Spray with compressed air, clean the contacts following the contact cleaning instructions.
Alarm Siren:
Spray with compressed air.
GX4
Housing/Cartridge Housing:
®
Clean with mild household cleaner. For paint, wipe off with MEK or other paint cleaning
agents.
SENSOR CHECK
The gas sensor cartridges come pre-calibrated, but they should be checked monthly to
ensure they are still calibrated within government regulations. Select "Menu" "Sensors"
"Check Sensors", then follow the prompts on the display menu to run a Sensor Check on
each cartridge.
You will need:
Zero Air Bottle (08-460) containing 20.9% Oxygen in Nitrogen.
Control Air Bottle(s) specific to the gas of the cartridge(s) being checked.
Calibration Kit (08-451) to connect the bottles to the GX4
, it is most likely
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