The Informant™ 2
0019-9211 Rev 9
11
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use the detector in windy areas,
•
move the probe tip back and forth faster than 2" per second,
•
allow the probe tip to contact a hot surface.
2.11. Refrigerant Sensor Flooding Indication
When the refrigerant sensor becomes flooded with a high concentration
of gas, observe that the gas-level LEDs quickly light full scale and then
all turn off, leaving both the audible tick rate and probe tip blink rate at
elevated levels. When this condition occurs, move the detector to an
area of fresh air until all indicators return to their idle state.
2.12. SAE Refrigerant Leak Detection Tips
The following was derived from SAE Surface Vehicle Standard J1628,
Technician Procedure for Using Electronic Refrigerant Leak Detectors for
Service of Mobile Air-Conditioning Systems:
• The electronic leak detector shall be operated in accordance with the
equipment manufacturer’s operating instructions.
• Leak test with the engine not in operation.
• The air conditioning system shall be charged with sufficient refrigerant
to have a gauge pressure of at least 340 kPa (49 psi) when not in
operation. At temperatures below 15 °C (59 °F), leaks may not be
measurable, since this pressure may not be reached.
• Take care not to contaminate the detector probe tip if the part being
tested is contaminated. If the part is particularly dirty, it should be
wiped off with a dry shop towel or blown off with shop air. No cleaners
or solvents shall be used, since many electronic detectors are sensitive
to their ingredients.
• Visually trace the entire refrigerant system, and look for signs of air-
conditioning lubricant leakage, damage, and corrosion on all lines,
hoses, and components. Each questionable area shall be carefully
checked with the detector probe, as well as all fittings, hose-to-line
couplings, refrigerant controls, service ports with caps in place, brazed
or welded areas, and areas around attachment points and hold-downs
on lines and components.
Summary of Contents for The Informant2
Page 2: ...The Informant 2 ii 0019 9211 Rev 9 ...
Page 22: ...The Informant 2 18 0019 9211 Rev 9 Figure 8 Connector Locations on Printed Circuit Board ...
Page 28: ...The Informant 2 24 0019 9211 Rev 9 6 Declaration of Conformity ...
Page 29: ...The Informant 2 0019 9211 Rev 9 25 NOTES ...
Page 30: ...The Informant 2 26 0019 9211 Rev 9 NOTES ...
