10
Sensitivity Check
The D-TEK has a circuit that allows the operator to check the
sensor’s operation, insuring your instrument will be able to sense
refrigerant at the specified rate. To do this check you should:
• Turn on the D-TEK with the sensitivity switch in the HIGH
position. Be sure you either have charged power cells or you
are operating the D-TEK off the AC adapter.
• After the D-TEK goes through its warm up and all the yellow
LED’s turn off, move the sensitivity switch from HIGH to LOW
and then back to HIGH.
• If you do
not
see three (3) or more yellow LED’s light then zero
out, your sensor has either lost its ability to pick up the specified
refrigerant leak or your D-TEK has a malfunction (see
Trouble-
shooting
.)
Removing/Replacing the Power Cells
If you have a
set of three
fully charged power cells, you may
exchange the
complete set
with the three used cells in the leak
detector, then recharge the originals later.
Note:
Power cells must be installed in the detector for proper operation.
Remove the battery compartment door on the back of the D-TEK by
pressing on both release buttons on the grip and pulling the door
straight out. See the photo below for location of parts. The batteries
are free to slide out into your hand.
Release Button
(Other side not shown)
Battery Door
