TESTO 270 BT - Cleaning the Housing; Cleaning Plastic Case; Calibrating;Adjusting the Instrument

9 Maintaining the product
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9.3 Cleaning the housing
✓
The instrument is switched off.
1
If the housing of the instrument is dirty, clean it with a damp cloth.
Do not use any aggressive cleaning agents or solvents! Mild household
cleaning agents and soap suds may be used.
2
Dry housing.
9.4 Cleaning plastic case
1
If the plastic case is dirty, clean it with a damp cloth.
Do not use any aggressive cleaning agents or solvents! Mild household
cleaning agents and soap suds may be used.
2
Wipe plastic case with a dry cloth.
9.5 Calibrating/adjusting the instrument
You can check the accuracy of your instrument by carrying out a comparative
measurement with the Testo reference oil (calibrating). If there is too great a
difference between the reading and the reference value, future instrument
readings can be adjusted to the reference value (adjusting).
The testo 270 BT should be checked with the Testo reference oil on a
regular basis and adjusted if necessary (accuracy +/- 2.5% TPM) ). We
recommend a monthly check as part of quality assurance.
We recommend you always use the Testo reference oil for
calibration/adjustment of the sensor (order no. 0554 2650, 1 piece).
The sensor is exposed to large temperature jumps and pollutants while
in measuring mode. We therefore recommend having an annual test
carried out by Testo Customer Service. For more information go to:
www.testo.com.
Prepare calibration / adjustment with testo reference oil
1
Clean sensor before the calibration/adjustment, see chapter “Cleaning
the sensor”.
When heating the reference oil, make sure that no water gets into the
reference oil or onto the sensor.