RKI Instruments GX-2009 Manual - Manual (Page 50)

45 • Calibration Mode GX-2009 Operator’s Manual
• To view the calibration gas reading, press the AIR button again.
• To return to the BUMP screen in Calibration Mode, press POWER
MODE at any time.
• Turn the regulator on/off knob clockwise to close it.
11. Remove the calibration adapter plate from the instrument.
12. Remove the regulator from the calibration gas cylinder.
13. Leave the regulator connected to the calibration adapter plate for
convenience.
14. Store the components of the calibration kit in a safe and convenient
place.
Discharging the Batteries with the REFRESH Function
Entering the REFRESH menu item allows you to discharge the batteries.
If the GX-2009’s batteries are repeatedly only partially discharged before
being charged or only partially charged before being discharged, the
instrument’s runtime may be reduced. The NiMH batteries used in the GX-
2009 are resistant to this effect, but if you notice that the runtime is
decreasing, run the REFRESH function two or three times and see if the
runtime recovers. If the batteries are fully charged, the REFRESH function
will take about three hours to discharge the batteries. If the instrument’s
runtime does not recover, the batteries may need to be replaced.
52 20.9
/CAL
CO ppm H2S ppm
CH4 %LEL OXY vol%
48 0.0
BUMP
REFRESH