RKI Instruments RP-6 - Manual (Page 6)

RP-6 Pump for the GX-94 • 6
removed by turning it counterclockwise and pulling it away
from the pump unit. Two flat membrane disk hydrophobic
filters and a wire mesh disk are located in the pump unit on the
filter holder end.
The battery compartment is located on the other end of the
pump unit. An AA alkaline battery is installed in the battery
compartment and held in place by a black plastic battery cap.
The battery cap may be removed for access to the battery by
pushing it down, turning it counterclockwise, and pulling it
away from the pump unit.
The exhaust fitting, a male quick connect, is located near the
battery cap end of the pump unit and is smaller than the inlet
fitting.
A rotating ON/OFF switch, a power indication LED, and a low
flow LED are located near the inlet end of the pump unit. The
power LED is on when the pump unit is on. The low flow LED
flashes when the pump is experiencing a low flow condition.
Inside the pump unit case are the circuit board and diaphragm
pump. There are no user serviceable components inside the
pump unit case except for the battery accessible through the
battery cap and the wire mesh and hydrophobic disk filters
accessible through the filter holder.
Coiled Hose
A 6 ft. coiled polyurethane hose is provided with the RP-6. It has
a female quick connect fitting on each end. This hose connects to
the pump unit exhaust fitting on one end and to the sample
adapter on the other end.
Sample Adapter
The sample adapter is a red plastic cup which fits over the GX-
94’s sensor diffusion screen and is held in place with a
thumbscrew. A male quick connect fitting is located on the
sample adapter which mates to the coiled hose.