RKI Instruments GD-K77D - Manual (Page 40)

35 • Maintenance Model GD-K77D Operator’s Manual
5. Press and hold the TEST/SET switch until 2-1 appears on the display. The unit is now
in Maintenance Mode 2.
6. Use the FLOW ADJ switch to show 2-4 on the display.
7. Press the TEST/SET switch to show S.SET on the display.
8. To set the initial value of the sensor, press the TEST/SET switch.
9. Press the MODE switch to return the unit to Maintenance Mode 2.
10. Press and hold the MODE switch until the Skip lamp shuts off; this action will return
the unit to Detection Mode.
Storage
If you need to store the Model GD-K77D temporarily or for long periods of time, make sure
that the unit is oriented upright with the display facing forward. This orientation will help
minimize the normal aging of the sensor and keep the sensor membrane from drying out.
Store the Model GD-K77D in a sturdy, water resistant container at normal room
temperature away from gas, solvents, and vapors. The storage temperature must be
between 32 o F (0 o C) to 104 o F (40 o C) and relative humidity should be between 30%
and 85%.
CAUTION: When the Model GD-K77D is not used for long periods of time, the lithium battery may lose
power. The lithium battery, under normal operating conditions, has a life expectancy of about
three (3) years from the date of manufacturing. When the lithium battery is replaced, put the unit
into maintenance mode before replacing the battery by pressing the Mode switch for 3 seconds.
Then calibrate the unit as described in the Calibration section. If the Model GD-K77D has been
stored for a long time, calibrate the Model GD-K77D when the unit is put back into service.
WARNING: Do not discard, disassemble, mutilate, or burn the sensor. It uses a
dilute acid electrolyte that damages clothing or other materials, and it
can cause skin burns or blindness should the electrolyte come in
contact with the eyes. If the electrolyte makes contact with the skin or
eyes, wash the affected area very thoroughly with water. With eye
contact, seek medical attention immediately.
Do not recharge, burn, mutilate, or expose the lithium battery to
temperatures greater the 212
o
F (100
o
C) because it may leak or
explode. Do not immerse the battery in water.
LED indication Display indication
PW/TR ALM1 ALM2 SKIP
2 1
LED indication Display indication
PW/TR ALM1 ALM2 SKIP
2 4