Differential Pressure (Δp) - TESTO 400 Instruction Manual

9 Operation

Values currently being measured are
displayed.
9.4.12 Differential pressure (ΔP)
The testo 400 has an internal absolute and differential pressure sensor. This
sensor can be used, for example, to investigate the differential pressure of two
rooms.
1 Connect the pressure tubes to the + and - connection sockets.
Make sure the pressure tube does not jump away from the connection
socket.
Risk of injury!
- Ensure correct connection.
2
Click on

Main menu opens
3
Click on Measure.
4 Click on Differential pressure

The Differential pressure (ΔP) measurement menu opens.
60
CAUTION
.
(ΔP).