TESTO 320 basic - Sensor settings; O2 reference; Recalibration;adjustment

6 Using the product
31
Changing the password:
1. [Edit].
2. Enter the new password → [Next].
3. [Edit].
4. Enter the new password again to confirm → [Next].
5. Save changes: [Finished].
6.1.3. Sensor settings
6.1.3.1. O
2
reference
The O2 reference value can be set.
The O2 reference value setting may be password protected.
Call up function:
> [] → Sensor settings → O2 reference → [Edit].
Possibly:
> Enter the password: [Enter] → Enter password → [Next] →
[OK].
Setting the O
2
reference:
> Set value → [OK].
6.1.3.2. Recalibration/adjustment
The CO sensor can be recalibrated and adjusted.
For recalibration/adjustment, Testo recommends using calibration
adapter 0554 1205 or sending the instrument off to Testo Customer
Service.
If obviously unrealistic measured values are displayed, the
sensors should be checked (calibrated) and, if required,
adjusted.
Adjustments made with low gas concentrations can lead to
accuracy deviations in the upper measuring ranges.
Call up function:
> [] → Sensor settings → Recalibration → [OK].
Possibly:
> Enter the password: [Enter] → Enter password → [Next] →
[OK].
- Gas zeroing (30 s).