Handling, Putting-Into-Operation - VOLTCRAFT 304 Bedienungsanleitung

values (for the measuring protocol). With the bush button "T1 – T2"
the difference from channel 1 – (minus) channel 2 is displayed. With
the bush button "°C/°F" you may choose between two measuring
units: the "English" in degree Fahrenheit and the one of the "remai-
ning European" countries in degree Celsius. If you finally operate the
push-button REL (with triangle symbol) the actual temperature dis-
play is set to "0.0" and only the difference (delta) is displayed. And
with the switch-on push-button the background lighting can be
switched on and off.
The measuring range extends from –200°C to +1370°C or from
–328°F to +2498°F. The temperature range of the enclosed sensors
however is limited to –50°C to +200°C (-58°F to +392°F).
The Digital 4-Channel Thermometer 304 is universally applicable in
do-it-yourself and hobby workshops as well as in the professional
area and in schools.

Handling, Putting-into-Operation

A Inserting of battery – exchanging of battery
In order to work properly your measuring device has to be equipped
with a 9 V compound battery. When the battery exchange symbol
appears in the left centre on the display you have to carry out a bat-
tery exchange. You do this in the following way:
- Disconnect your measuring device from the measuring circuit
(and from the PC if connected or if any),
- remove the temperature sensors from the measuring device,
- switch it off and
- push the battery compartment cover carefully open in the
direction of the arrow.
- Separate the used battery from the connecting clip and
- replace the battery by a fresh one of the same type.
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