RKI Instruments GX-3R Pro - Battery Pack and Accessories

GX-3R Pro Operator’s Manual Chapter 2: Description • 18
NH
3
Sensor’s Humidity Filter (White)
A white humidity filter is placed into a recess in the filter gasket over the NH
3
sensor (if an NH
3
sensor is installed). The filter absorbs humidity in the sampling environment to prevent unstable
readings around 0 ppm. The filter should be replaced every 6 months. “NH3” is printed on the
side of the filter.
Hydrophobic Dust Filter
The oval-shaped hydrophobic dust filter is attached to the top of the filter gasket, covering the
sensor ports and the filters. The filter gasket and hydrophobic dust filter get replaced as a set.
NOTE: Some GX-3R Pros have a hydrophobic dust filter that is not attached to the filter gasket.
When replacing the hydrophobic dust filter on one of these GX-3R Pros, remove the
filter and the gasket and replace it with a filter gasket/hydrophobic dust filter assembly.
Infrared Communications Port
An infrared (IR) communications port is located on the top of the case, near the top LEDs.
Logged data transmits through the port in standard IrDA protocol. A computer’s infrared port or
an IrDA/USB cable connected to a USB port can be used to download data to the GX-3R Data
Logger Management Program. See the GX-3R Data Logger Management Program operator’s
manual for data logging and downloading instructions.
Battery Pack
The GX-3R Pro is either powered by a rechargeable lithium-ion (Li-ion) battery pack or an
alkaline battery pack with 2 AAA batteries (Duracell MN2400 or PC2400). Instruments with a Li-
ion battery pack have a charging socket on the back of the instrument. Instruments with an
alkaline battery pack have a cover that allows for battery replacement.
The battery icon in the upper right of the LCD shows remaining battery life. A low battery
warning activates when the GX-3R Pro detects a low battery voltage. The GX-3R Pro sounds a
dead battery alarm when battery voltage is too low for Measuring Mode.
NOTE: Use of batteries or battery chargers not specified by RKI Instruments, Inc. will
compromise the CSA classification and may void the warranty. See page 120 and page
121 for more information.
WARNING: To prevent ignition of a hazardous atmosphere, batteries must only be changed or
charged in an area known to be nonhazardous.
AVERTISSEMENT: Pour éviter l’inflammation d’une atmosphère dangereuse, les batteries
doivent uniquement être modifiés ou facturés dans une zone connue
comme non dangereuse.