Recalibration / Adjustment - TESTO 330-1G Instruction Manual

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6.1.3.4.

Recalibration / adjustment

CO and NO sensors can be recalibrated and adjusted.
For recalibration / adjustment Testo recommends the use of the
calibration adapter 0554 1205.
If obviously unrealistic readings are displayed, the sensors
should be checked (calibrated) and, if required, adjusted.
Have the recalibration / adjustment carried out by a
qualified service centre approved by Testo.
Adjustments made with low gas concentrations can lead to
accuracy deviations in the upper measuring ranges.
Calling up the function:
> [ ] → Sensor Settings
Possibly:
> Enter the password:
[OK].
- Gas zeroing (30 s).
Performing recalibration / adjustment:
WARNING
Dangerous gases
Danger of poisoning!
> Observe safety regulations / accident prevention regulations
when handling test gas.
> Use test gases in well ventilated rooms only.
1. Connect the calibration adapter to the flue gas socket.
2. Select the parameter: [▲],
3. [Edit] → Enter the test gas concentration (nominal value).
4. Attach the connecting line of the test gas bottle to the
calibration adapter.
5. Apply test gas to the sensor.
6. Start recalibration: [Start].
7. Accept the nominal value once the actual value is stable
(adjustment): [OK].
-or-
Abort (no adjustment): [esc].
8. Save changes: [Finished].
www. www.
6 Using the product
→ Recalibration → [OK].
[Enter] → Enter password →
[▼] → [OK].
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