RKI Instruments GX-2012 Manual - Manual (Page 14)

6 • Instrument Description GX-2012 Operator’s Manual
Figure 2: Components of the GX-2012, Bottom
Case
The Model GX-2012’s sturdy, high-impact plastic case is radio frequency
(RF) resistant and is suitable for use in many environmental conditions,
indoors and out. The case is dust proof and weather resistant. A rubber layer
on the outside of the case protects it from scratches and impact damage.
A clear plastic window through which the LCD can be viewed is located on
the front of the case. Four brass charging contacts that are used when the GX-
2012 is placed in the charging station are on the back of the case. Both the
rechargeable and alkaline versions include a removable battery pack. The
battery pack release latch is on the bottom. The alkaline battery version also
includes a battery cover release knob. The battery pack and flow chamber are
located on the back of the GX-2012. The inlet filter holder is located on the
top of the GX-2012 case.
Sensors
The GX-2012 uses up to five sensors to monitor combustible gas, oxygen
(O
2
), carbon monoxide (CO), and hydrogen sulfide (H
2
S) simultaneously.
The sensors are located inside the GX-2012 and are held in their sockets by
the flow chamber. The sensors use different detection principles, as described
below.
Rechargeable Version
Battery Pack
Battery Pack
Release Latch
Battery Cover
Release Knob
Alkaline Version