Robinair 16900 Refrigerant Identifier - Manual (Page 11)

16900 Refrigerant Identifier 9
Operating Procedure
PRE-OPERATION INSPECTION
1. Inspect the outside diameter of the white element contained within
the sample filter for any signs of red spots. The appearance of red
spots anywhere on the outside diameter of the element indicates the
filter requires replacement to avoid fouling the instrument.
2. Select the R-12 or R-134a sample hose as dictated by the
application. Inspect the hose for cracks, signs of wear, obstruction,
or fouling. Do NOT use a hose that has any signs of wear. Install
the sample hose onto the sample inlet port of the instrument by
hand-threading the hose end onto the connector.
3. Inspect the air intake port hole, located on the top of the
instrument, and the sample exhaust port, located on the center
bottom edge of the instrument, to verify they are not clogged or
obstructed.
4. Inspect the port of the air conditioning system or storage vessel
from which the sample will be taken. Verify the port will emit
vapor only and will not emit liquids or oil.
5. Install the vehicle battery adapter or the wall power adapter harness
into the power connector of the instrument.
OPERATING PROCEDURE
1. Power the instrument by connecting the power harness to the
vehicle battery or by plugging the wall power adapter transformer
into an appropriate wall outlet.
2. Allow the instrument to warm up for two minutes.