Setting the Calibration Modes
Automatic Calibration
:
This mode is useful when searching for leaks normally and also in
heavily contaminated areas. The detector automatically recalibrates
(re-zeroes) to ambient levels, which stops the constant alarm, only
responding to higher levels of refrigerant. This allows searching for
the true source of the leak. The detector will reset automatically
after 3 or 4 seconds and stop the detector from alarming. Note: the
detector automatically defaults to this mode when the unit is
powered on normally.
Manual Calibration:
This mode may be useful when more control over the calibration is
required and also when searching for smaller leaks. In this mode
the detector recalibrates to ambient levels, but only when you
choose to do so. The calibration will remain constant when
searching for small leaks.
To use the detector in Manual Calibration mode: Press and hold the SEN
button and release the button when the SEN LED level indicator starts to
blink or (flash). Note: after resetting, the LED will blink rapidly until the
manual reset cycle is complete.
To return to Automatic Calibration press and hold the SEN button and
release the button when the SEN LED stops blinking (flashing).
Note: the sensitivity levels can only be changed in Automatic
Calibration mode. To change sensitivity levels while in Manual
mode, return to Automatic mode, select the desired level and return
back to Manual mode.
Low Battery Indicator
Replace the 4 AA Alkaline batteries when the red LED on the
control panel is lit. Follow battery installation instructions under
Maintenance
section.
Audio Mute Function
To silence or mute the audio beep and alarm signal, press the
MUTE button. To restore the audio sound, press the MUTE button
again. (Note: a few seconds is required to restore sound if the mute
button is pressed in rapid succession.)
3
Adjusting Sensitivity Levels
The Leak Detector will default to the NORM sensitivity level
automatically once the unit comes out of the warm up cycle and
the green LED will turn on.
To change sensitivity levels, press the SENS once for HI
sensitivity (red LED will turn on) and again for LO sensitivity
(yellow LED will turn on).
Leak Test Vial
The leak detector comes with a Leak Test Vial that allows the
user to make sure the detector is performing properly. To test:
1. Remove the Plastic Seal Cap on the top of the Leak Test
Vial by pulling it off (see fig. below). Also, remove and
discard the circular Leak Test Cap Seal.
2. Turn on the leak detector and allow the instrument to
complete the warm up cycle.
3. Place the sensor close to the small hole in the top of the
Leak Test Vial. The beep rate should increase and the
Digital Leak Size Indicator should display a number from
4-6 indicating that the sensor and the electronics are
working properly.
NOTE: Remember to replace the Plastic Seal Cap after the leak
test is completed. Replace the Leak Test Vial when the green
media color is no longer visible and the leak media has evaporated.
Remove the threaded cap on the vial to confirm the status of the
leak test media. After the leak test media has evaporated, it is
normal for there to be a green film on the wall of the Leak Test Vial.
Remove the Plastic
Seal Cap to Test the
Leak Detector
Leak Test Cap Seal
4
Leak Test Vial
