Robinair 16910 ID Plus Refrigerant Identifier - Manual (Page 12)

10
Pre-Operation Procedure
1. Inspect the sample filter for signs of red spots or discoloration anywhere on the white
outside diameter of the filter element. If any red spots or discoloration are noticed,
REPLACE THE FILTER BEFORE USING THE INSTRUMENT.
CAUTION
When red spots or discoloration begin to appear on the white outside
diameter of the filter element, REPLACE THE FILTER. Failure to correctly
maintain the sample filter may result in severe instrument damage not
covered under warranty.
2. Select the R-12 or R-134a sample hose according to the application. Inspect the hose
for signs of wear, such as cracking, fraying, or kinks. Verify the hose is not obstructed
and no oil is present inside the hose. If the hose shows signs of wear, obstructions, or
oil, IT MUST BE REPLACED (or cleaned) BEFORE USING THE INSTRUMENT.
3. Install the sample hose onto the inlet port of the instrument. The hose connector needs
only to be fingertight to achieve a gas-tight seal.
4. Inspect the air intake port, the sample exhaust port, and the case vent ports of the
instrument to verify they are clear and unobstructed.
5. Verify the purge vent port cap is securely installed onto the port.
WARNING
Failure to correctly install the cap onto the purge vent port results
in excessive loss of refrigerant during the refrigerant identification
procedure, which is a health hazard. A refrigerant identification is
ALWAYS performed before an air purge procedure.
6. Inspect the sample port of the refrigerant storage cylinder or vehicle air conditioning
system to be tested. Verify the port is the LOW SIDE or VAPOR port.
Operating Procedures