GX-3R Operator’s Manual Chapter 2: Description • 11
Chapter 2: Description
Overview
This chapter describes the GX-3R instrument and its accessories.
Instrument Description
Case
The GX-3R’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 water
resistant. A clear plastic window on the front of the case allows for LCD viewing. The black
bottom cover, located on the bottom of the case, allows access to the filters and sensors. A
sensor retainer and filter gasket help orient and retain the sensor and filters.
Three threaded inserts on the back of the case allow for installation of an alligator clip or belt
clip.
LCD
The digital LCD (liquid crystal display) simultaneously shows the gas reading for all installed
sensors. The LCD also shows information for each of the GX-3R’s operating modes.
GX-3R
POWER
MODE
CO/H2SLELO2
AIR
Bottom
Cover
Charging
Socket
Sensor
Retainer
Buzzer
Opening
Front Back
LCDLEDs
Threaded
Inserts
Figure 1: Component Location
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