RKI Instruments GX-86A User Manual
Page 29
Model GX-86A Instruction Manual
Page 28
Hayward, California (510) 441-5656
MAINTENANCE
Batteries
1. Check the battery voltage periodically by pressing the DISPLAY
switch to reach the Battery Voltage function. Replace the batteries
before the voltage drops to the operational limit (see Operation-
Alarms).
WARNING
T
AKE
THE
GX-86A
TO
A
NON
-
HAZARDOUS
LOCATION
BEFORE
CHANGING
OR
CHARGING
THE
BATTERIES
.
2. To replace the batteries, remove the battery compartment cover.
Remove the batteries and verify that the battery compartment and
electrical contacts are clean. Insert fresh batteries (alkaline or
fully-charged NiCd) according to the polarity (+/-) markings and
replace the cover.
3. Recharging Batteries
Rechargeable batteries may be recharged inside the GX-86A in a
non-hazardous location. Turn the instrument off, connect the
charger to the charger jack, and plug the charger into a 115 V AC
outlet. Full charge requires approximately 12 hours.
3. Bias Current Discharge
The batteries continuously supply a small current to maintain the
toxics sensors, even when the instrument is off (see Sensor
Maintenance). This current drain is minimal, but will result in a
normal discharge of the batteries over a period of several weeks.