LaMotte DO 4000 Dissolved Oxygen Meter - Manual (Page 19)

METER CARE
CONNECTING THE PROBE
If it is necessary to remove probe from the meter, reconnect the probe
with the arrow on the probe connector facing up. See diagram below for
the proper connection to the meter.
REPLACING THE BATTERY
When “BAT” appears on the display, the battery should be changed.
The DO 4000 uses a type 1604A (9 volt) replaceable or rechargeable
Nickel/Cadmium battery.
1. Use a #1 Phillips head screwdriver to remove the four screws on
back of the meter case.
2. Gently lift back panel from meter.
3. Lift battery from bottom of meter. Remove battery from connector.
4. Snap new battery onto connector.
5. Lower the new battery back into the meter.
6. Replace back panel. Replace screws. Wait 15 minutes for the DO
4000 to repolarize after replacing the battery.
AC ADAPTER
An AC adapter is available for use with the DO 4000 (order LaMotte
Code 1708). See diagram below for the proper connection to meter.
NOTE: The use of an AC Adapter other than the one supplied by
LaMotte Company may damage the meter and will void the meter
warranty.
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