INFICON D-TEK CO2 Refrigerant Leak Detector - Manual (Page 6)

6
Changing the Filter Cartridge
The D-TEK CO2 utilizes a specially designed filter cartridge that fits into a
protective cap. The filter cartridge should be changed when it appears dirty or
when substances trapped in the filter cartridge seem to be affecting the sensitivity
of the D-TEK CO2.
NOTE: Water or oil will not penetrate the filter material but will prevent airflow
through the filter and affect sensitivity.
CAUTION
TURN OFF THE D-TEK CO2 AND HOLD THE PROBE WITH THE
FILTER TIP POINTING DOWN WHEN REMOVING THE FILTER CAP.
To change the filter cartridge, twist off the protective cap. Remove and dispose of
the used filter cartridge. Do not allow any moisture or dust to get into the probe.
Do not disassemble or attempt to clean the material inside the filter cartridge, as it
can be damaged when handled.
Slide a new filter cartridge into the cap. Twist the cap with the new filter cartridge
onto the probe base until it is tight.
NOTE: It is very important that you operate the D-TEK CO2 with a filter cartridge
installed at all times. Failure to do so could damage the leak detector's
components.
Changing the Infrared Cell
WARNING WARNING WARNING
COMPONENTS MAY BE HOT. TURN OFF DETECTOR AND
DISCONNECT POWER ADAPTER CORD BEFORE REMOVING
THE INFRARED CELL DOOR.
The D-TEK CO2’s infrared cell (IR cell) is located in the body of the detector. The
IR cell is a complete assembly consisting of a metal tube, connectors and
electronic components. The IR cell is not designed to be taken apart. Doing so will
destroy the cell. This specialized IR cell will operate for about 800 hours.
The D-TEK CO2 will flash all the leak indicators when the IR cell has reached the
end of its useful life. To replace the IR cell:
1. Locate on the top cover (at the rear of the detector) the latch for the IR cell door.
2. Using a small screwdriver, pull the latch forward and remove the door.