Manual

Automatic Circuit/Reset Feature

The unit features Automatic Circuit and Reset functions that set the unit to ignore

ambient concentrations of refrigerant.

Automatic Circuit - Upon initial power-on and completion of the warm-up, the unit

automatically sets itself to ignore the level of refrigerant present at the tip. Only a level,

or concentration, greater than this level will cause an alarm. Note: Since this feature

causes the unit to ignore any refrigerant present at the probe tip after warm-up is

completed, the unit should be powered on and allowed to warm up in fresh air.

Reset Feature - Resetting the unit during operation performs a similar function; it

programs the circuit to ignore the level of refrigerant present at the tip. Each time the

Reset Key is pressed (and released), the unit sets its threshold for detection to a

level above the current concentration being detected. By moving closer to a large leak,

and pressing Reset each time a full detection is indicated, the user can pinpoint the

source of the leak (higher concentration).

Similarly, the unit can be moved to fresh air and reset for maximum sensitivity.

Resetting the unit with no refrigerant present (fresh air) causes any level above zero to

be detected. The unit is set to its maximum sensitivity in the chosen sensitivity level.

To reset the unit, press the Reset Key. Each time the Reset Key is pressed, the LEDs

briefly show orange to provide a visual confirmation of the reset action.

Sensitivity Adjustment

The unit provides two levels of sensitivity. When the unit is switched on, it is set to the

high sensitivity position.

1. To change the sensitivity of the unit, press the Sensitivity Key . When the key is

pressed, the LEDs light in orange from right to left, providing a visual confirmation

and indication that the unit is in LOW sensitivity mode.

2. To switch back to high sensitivity again, press the Sensitivity Key. The LEDs light in

orange from left to right, providing a visual confirmation and indication that the unit

is in HIGH sensitivity mode.