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SENSITIVITY
Made in USA
BATTERY TEST
Turning the unit ON will automatically run the battery function test
and display the battery condition on the UNITS LED display. To view
the remaining battery life, press and hold the ON/OFF button.
OPERATING PROCEDURES
1. SENSITIVITY LEVELS
55100 offers three sensitivity levels (Low-Med-High). It will detect leaks as low as 1/10 oz (3 grams) per
year. Turn ON the unit, it will default to the Medium Level. (The Medium Level is the recommended setting to
begin inspection). To view the sensitivity level on the LED display, press either the UP or DOWN arrow. The
LED display will illuminate for approximately two seconds. Two Red LEDS will progressively illuminate for
every sensitivity level.
The sensitivity level can be increased by the UP arrow and decreased by the DOWN arrow. Pressing the
selected arrow once will adjust the sensitivity to the next level. Pressing and holding the arrow will continue
to move the setting until the arrow is released.
2. DETECTION LEVELS
55100 offers 5 levels of detection. As the unit approaches the leak source and the refrigerant concentration
increases, the audible alarm will increase in speed and the LED will display 5 levels of detection.
The detection level will vary depending on the level of the sensitivity setting. The same size leak will display
higher detection levels in higher sensitivity settings and lower detection levels in the lower sensitivity
settings.
3. RESET FUNCTION
The primary use for the RESET function is to pinpoint the leak source. When the unit detects a leak and goes
into full alarm, press the RESET button. Resetting will ignore any leaks at that level and only detect leaks of
higher concentration.
IMPORTANT LEAK DETECTION TIPS:
A. Make sure that the air conditioning/refrigeration system is turned OFF before inspection. A sufficient
amount of refrigerant must be present in the system. A minimum gauge pressure of 50 PSI at ambient
temperature of 60˚ and above with the system OFF is required for efficient leak detection.
KEYPAD FUNCTION & PARTS
1. Turns unit ON and OFF 3. Increases Sensitivity
2. Resets Sensitivity Level 4. Decreases Sensitivity
to Zero Reference 5. Sensor Tip
BATTERY INSTALLATION
Hold the leak detector handle horizontally.
To remove the battery door, loosen the screw on top of the door and
pull the door away from the unit. Load the two “C” cell batteries into the
compartment with the positive (+) end up. Reinstall the battery door.
SENSITIVITY
Made in USA
GOOD / GREEN
LOW / YELLOW
REPLACE / RED
SENSITIVITY
Made in USA
Low Sensitivity
Setting
Medium
Sensitivity
Setting
High Sensitivity
Setting
SENSITIVITY
Made in USA
Detection Levels
Highest Levels
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