Interfaces; Voltage Supply; Commissioning - TESTO 112 Instruction Manual

6 3. Production description
Important displays
Display Meaning
Battery capacity (bottom right in display):
· 4 segments in the battery symbol are lit: Instrument battery is fully
charged
· No segments in the battery symbol are lit: Battery is almost spent
Print function: Readings are sent to the printer
Upper alarm limit: Lit if exceeded
Lower alarm limit: Lit if undershot

3.2 Interfaces

Infrared interface
Measurement data can be sent to a Testo printer via the
infrared interface on the head of the instrument.
Probe socket
A plug-in measuring probe can be connected via the probe
socket on the head of the instrument.

3.3 Voltage supply

Voltage is supplied by means of a 9V monobloc battery
(included in delivery) or rechargeable battery. It is not possible
to run the instrument from the mains supply or charge a
rechargeable battery in the instrument.
4.

Commissioning

This chapter describes the steps required to commission the
product.
Removing the protective film on the display:
ã
Pull the protective film off carefully.
>
Inserting a battery/rechargeable battery:
ã
To open the battery compartment on the rear of the
1
instrument, push the lid of the battery compartment in
the direction of the arrow and remove it.
Insert a battery/rechargeable battery (9V monobloc).
2
Observe the polarity!
To close the battery compartment, replace the lid of the
3
battery compartment in position and push it against the
direction of the arrow.
4. Commissioning 7