INFICON D-TEK Select Refrigerant Leak Detector - Manual (Page 5)

5
4. When the D-TEK Select signals a leak, pull the probe away from the leak for a
moment, then bring it back to pinpoint the location.
5. If the concentration of the refrigerant gas is high, press the sensitivity switch to
change to the LOW sensitivity setting. The LOW sensitivity setting helps find the
exact site when a leak is large.
6. Once you have isolated the leak source, return the sensitivity setting to HIGH
to continue using the D-TEK Select.
Using the Manual Zero Mode
The D-TEK Select's automatic suppression of background contamination can be
disabled, allowing for a continuous display of a leak without "zeroing it out". When
the D-TEK Select is set in the manual zero mode, the technician may manually
reset or zero the detector.
To initialize this function, press and hold the HI/LO switch for 5 seconds. The "HI"
sensitivity indicator will flash to alert the user the detector is in manual zero mode.
Increases in concentrations of refrigerants will be displayed by the illumination of
the yellow LEDS. For best test results, allow the D-TEK Select to warm up for
5 - 10 minutes before engaging manual zero mode.
To "zero" the D-TEK Select, press the HI/LO switch once. Both the HI and LO
sensitivity indictors will flash for a few seconds while the detector measures and
sets a new background base level. Any increase in concentrations of refrigerant
above this base level will be displayed.
To turn off the manual zero mode, press and hold the HL/LO switch until the HI
sensitivity indicator becomes steady.
NOTE: When the D-TEK Select is turned on, it will always default to the
automatic zeroing mode.
Recharging the Power Stick
A fully charged power stick should provide power for approximately 6.5 hours of
continuous operation. When the battery is fully depleted, the D-TEK Select will
shut down. To show the battery is depleted, the green ON indicator, last yellow
leak indicator and the amber battery charging indicator will flash. Recharge the
D-TEK Select by connecting the supplied AC power adapter, or using the cigarette
lighter adapter.
NOTE: The D-TEK Select does not need to be fully charged to operate nor fully
discharged before recharging.