TESTO 312-4, Instruction Manual

Page: 33 / 38

7 Maintaining the product
33
7 Maintaining the product
Changing the battery/rechargeable battery
To avoid the loss of data, it is imperative that you switch
the instrument off when changing the
battery/rechargeable battery and replace the battery in
< 10 min.
1. Open the battery compartment on the rear of the instrument.
2. Remove the empty monobloc/rechargeable battery.
3. Insert new empty monobloc/rechargeable battery.
> Observe the polarity!
4.
Close the battery compartment.
Charging rechargeable battery
Incorrect charging of batteries!
Danger of explosions.
Only start the charging process if a rechargeable
battery is in the instrument and the battery type is set to
RechBatt .
1. Check if a rechargeable battery is in the instrument.
2. Check if the battery type is set to RechBatt .
3. Connect the connector of the mains unit to the 12 V DC socket
of the instrument.
4. Connect the mains plug to the mains socket.
- A message box is displayed asking whether the rechargeable
battery should be charged.
5. Select Yes with and confirm with .
The charging process begins automatically. flashes during the
charging process and the current battery voltage is displayed.
Cleaning the instrument
> If the housing of the instrument is dirty, clean it with a damp
cloth.
Do not use any aggressive cleaning agents or solvents! Weak
household cleaning agents and soap suds may be used.