RKI Instruments SM-2009U - Manual (Page 40)

36 • Charging an Instrument in a Calibration Station
instrument by pressing and holding the EDIT ENTER and POWER
buttons simultaneously for at least one second and then releasing
them. If no buttons are pressed for 10 minutes, the calibration
station will automatically turn off the instrument.
3. After a few seconds, the CHARGE LED will start blinking yellow.
The BUMP and/or CAL. LED will continue to be either green or red
depending on the result of the bump test or calibration.
4. If the battery pack is fully charged, then the CHARGE status LED
will turn solid green in a few minutes.
If the battery pack is drained enough for the calibration station to
charge it, the CHARGE LED will continue to blink yellow while
charging is taking place. The SM-2009U will take approximately 3
hours to charge a fully discharged GX-2009.
NOTE: If the GX-2009 is left in the SM-2009U after calibration or
bump testing, the pump will run for 12 seconds every 2
minutes in order to keep hydrogen generated from charging
of the NiMH batteries from affecting the CO sensor.
5. When the charge is complete, the CHARGE status LED will turn
solid green.
To recharge the batteries in an instrument without performing any other
operations:
1. Confirm that the AC Adapter is connected to the SM-2009U and to
an AC wall socket.
2. Press and hold the SM-2009U’s POWER button. The LEDs will turn
amber and the internal pump will turn on momentarily.
3. When the pump stops and the BUMP and CAL. LEDs turn off,
release the POWER button.
4. The CHARGE LED will begin to blink green for a few seconds, then
blink yellow.
5. If the battery pack is fully charged, then the blinking yellow LED will
turn solid green in a few minutes.
If the battery pack is drained enough for the SM-20090U to charge