Differential Pressure Measurement - TESTO 312-1 Instruction Manual

Connect pressure
measuring hose
1
2
- Segment test (3 s)
3
- Voltage display (3 s)
(see page 6)
- Function check
for both pressure nipples
No reading display?
Send instrument in for service.
Measurement menu
4
08:38
-----
Symbol ∆ ∆ P / Measurement range: 200 hPa
Switch on
instrument.
Measurement exampe

Differential pressure measurement

5
6
08:38
2
7
09:15
13.0
8
09:15
13.0
9
7
Start measurement.
Wait on calibration
phase (5 s)
Position pressure
measurement hose. The
reading appears in the
display.
Save reading.
HOLD appears in the
display.
The saved readings
can be printed.