Humidity Calibration - TESTO 400 Instruction Manual

9 Operation

Humidity calibration

9.7.6
For humidity calibration, the measurement parameter of the connected
probe is adjusted to the reference value at the two standard adjustment
points 11.3 %RH and 75.3 %RH; any measuring value deviations from
the nominal value are minimized across the entire measuring range.
The Testo calibration set provides a reference value to calculate the
offset for a humidity calibration.
Humidity calibration is possible with the following probes:
Order no.
0636 9771
0636 9772
0636 9731
0636 9732
0636 9775
The probe is connected to the testo 400.

1
Click on

Main menu opens.
2
Click on Sensors.

The Sensors menu opens.
3
Click on the required sensor.

Information is displayed about the model, order number, serial number
and firmware version.
4
Click on the

Window with measurement parameters opens.
5 Click on Relative

The Relative humidity window opens.
86
Designation
High-precision temperature/humidity probe with Bluetooth
High-precision temperature-humidity probe, fixed cable
Temperature/humidity probe with Bluetooth
Temperature/humidity probe, fixed cable
Robust temperature/humidity probe for temperatures up to
+180 °C, fixed cable
.
Measurement parameters
humidity.
®
tab.
®