Robinair 16900 Refrigerant Identifier - Manual (Page 9)

16900 Refrigerant Identifier 7
Hardware Descriptions
8. Air Detection Sensor: A chemical fuel cell that detects the amount
of air contained within a refrigerant sample.
9. Control Circuit Board: Directs all activities of the instrument
through the embedded microprocessor. The infrared detection
device is also contained on this circuit board and provides all
detection of refrigerant components of the sample gas.
10. Purge Pump: Draws ambient air through the air intake port for
the purpose of detection device calibration and instrument sample
system purging.
11. Power Connector: Accepts installation of either the standard 12V
DC vehicle battery adapter, or the wall power adapter, to provide
operating power.
SAMPLE HOSES
1. R-12 Sample Hose: This is a 6-foot hose made of a nylon inner
tube surrounded by a polyurethane outer tube. The hose contains
the instrument connection fitting on one end and a 1/4" SAE female
flare nut on the other end. This hose is used when sampling from an
R-12 vehicle system or storage cylinder.
2. R-134a Sample Hose: This is a 6-foot hose made of a nylon inner
tube surrounded by a polyurethane outer tube. The hose contains
the instrument connection fitting on one end and an R-134a low-
side coupler on the other end. This hose is used when sampling
from R-134a vehicle systems or storage cylinders.