6 Using the product
25
- Hold appears in the display.
- Readings are held.
4. Read the measurement values.
5. To switch to the measuring mode: Briefly press [Hold]
(< 1 sec).
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6.3. Function test
For a simple function test without adjustment (accuracy
+/- 3 % TPM
3
), we recommend a measurement during the
commissioning of your new instrument in unused deep-frying oil at
150 to 180 °C.
We recommend performing the function test every time after
refilling the deep fryer with fresh oil.
1. Perform measurement in unused deep-frying oil at 150 to
180 °C, see Carrying out measurements, page 23.
2. Note reading.
3. Repeat steps 1 and 2 several times.
- The average of the readings is your specific reference value for
subsequent instrument testing.
When changing the type of oil or the oil supplier, the
reference value must be determined anew.
With implausible readings, we recommend the calibration or
adjustment in the testo reference oil, see
Calibrating/adjusting the instrument, page 27.
Your specific reference value:
___________________________
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3
typical, referred to testo internal reference, at an ambient temperature of 25 °C
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