12
08:54
-----
Measurement
menu
Switch on
instrument.
- Segment test (3 s)
- Voltage display (3 s)
(See page 6)
3
2
1
4
5
-----
--
Measurement
menu
selection via
arrow button.
08:54
-----
08:51
100.0
Increase or decrease
alarm limits via arrow
buttons.
Go automatically to
measurement menu.
Differential pressure
Draught
08:54
- 0.04
6
8
7
Note:
If the alarm limit has a value of 0.00 or 0.0,
the alarm of the corresponding alarm limit is
switched off. The dP or draught alarm is
inactivated following initialisation. Alarm
symbols do not appear on the display.
The alarm is deactivated by the manufacturer
i.e. the alarm limit is set at 0.00 or 0.0.
Press the alarm button once the alarm limit is
changed. The symbol is visible.
After the measurement, the flashing is a sign
that an alarm limit is set and was reached.
0 to 200 0 to 6000
0 to -40 0 to 300
testo 312-2
testo 312-3
Alarm setting range
Setting alarm limits
Differential pressure (testo 312-2/-3),
draught (testo 312-2)
Δ
P
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