YSI TruLab pH 1110 - Manual (Page 36)

Maintenance, cleaning, disposal TruLab pH 1110
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9 Maintenance, cleaning, disposal
9.1 Maintenance
9.1.1 General maintenance activities
The only maintenance activity required is replacing the batteries.
9.1.2 Replacing the batteries
1. Open the battery compartment (2) on the underside of the meter.
2. Remove the old batteries.
3. Place four batteries (type AA) in the battery compartment.
See the relevant operating manuals of the sensors for instructions
on maintenance.
You can operate the meter either with normal batteries or with
rechargeable batteries (Ni-MH).
In order to charge the batteries, an external charging device is
required.
CAUTION
Make sure that the poles of the batteries are positioned
correctly.
The ± signs on the batteries must correspond to the ± signs in
the battery compartment.
2