Operating The Instrument - TESTO 312-1 Instruction Manual

Initial operation

Operating the instrument

Keypad
- Scrolling buttons
Using the arrow buttons / you can scroll
between the parameters, the digits in the date/time and
the alarm limits can be set.
- Selection button
In the date/time and alarm limits menu access to the
variable parameters is via the arrow button pointing to
the right . The units can also be changed. The
parameters are set using the up and
down buttons.
- Printing
All of the saved readings can be printed on the printer by
pressing Print .
- I/O button
The instrument is switched on or off via the I/O
button . The display switches off automatically after 5
seconds once the instrument is switched off. This can be
prevented by pressing any button. The instrument then
goes to the ∆p measurement menu.
The readings in the display are usually lost when the
instrument is switched off.
- Cancel button
The Cancel button is used to cancel a selection or
leave a sub-menu.
- OK button
The changed parameters are saved by pressing .
- START/HOLD button
Start measurement by pressing . The displayed
readings are frozen by pressing again.
- Alarm on/off button
Switches audible signal on or off.
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