LaMotte DHA 3000 Digital pH Meter - Manual (Page 9)

METER CARE
BATTERY REPLACEMENT
When “Bat” appears on the display, the battery should be replaced. The
temperature reading will be the first to be affected by the low battery.
1.
Use a #1 Phillips head screwdriver to remove four screws on the 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.
NOTE: The DHA-3000 uses an Alkaline (9V) DC battery.
5. Lower the battery back into the meter.
6. Replace back panel on meter. Replace screws.
AC ADAPTER
An AC adapter is available for use with the DHA-3000. Order as
LaMotte Code 1744 (120V/60Hz) or 1778 (220V/50Hz).
CONNECTING THE PROBES
A. pH Electrode
1.
Slide BNC connector over receptacle on meter, making sure the pin
on the meter connector is in the lower end of the slot. Turn outer ring
on BNC connector until the pin slides to upper end of the slot.
B. Temperature Probe
1.
Slide connector pin into smallest hole on meter.
2. Hold probes next to each other. Slide rubber band to top of probes to
hold them together.
11
FIGURE A
BNC
Connector
AC Adapter
Connector
Temperature
Probe Connector