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Pos: 1 /TD/Produk tbeschreibung/Gru ndlegende Eigenschaf ten/testo 275/Inbetr iebnahmehinweise Ka librierung testo 27 5 @ 15\mod_1407391938938 _79.docx @ 194097 @ @ 1
Practical tips before commissioning your new testo 270
Dear Customer,
Congratulations on purchasing your new testo 270 cooking oil tester.
All our measuring instruments are factory tested by us before delivery and
adjusted to their own specific level of accuracy. To ensure a consistently high
level of accuracy, we recommend the instrument is regularly checked.
You have the following options with the testo 270 cooking oil tester:
1 Testo factory calibration according to ISO (accuracy +/- 2% TPM
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):
You can order an ISO calibration from Testo's calibration subsidiary, Testo
Industrial Services in Kirchzarten, using order number 0520 0028. This
means your testo 270 will be calibrated at two points (at approx. 3% and at
approx. 24% TPM) under precise laboratory conditions.
Furthermore, you have the following options for checking your testo 270 yourself
at any time:
2 with Testo reference oil (accuracy +/- 2.5% TPM
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):
With the Testo reference oil (order no. 0554 2650), you can check the
measuring instrument precisely and, if necessary, readjust it (please pay
attention to the description in the instruction manual for this).
3 with the simple function test in cooking oil (accuracy +/- 3% TPM
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):
For a simple function test without adjustment, we recommend you carry out
a measurement during the commissioning of your new instrument in unused
cooking oil at 150 to 180 °C.
You should ideally carry out this measurement several times in succession
and note the respective readings. The mean value of these readings
represents your specific reference value for subsequent instrument
checking. To use the determined reference value as a comparative value for
a check, always carry out the measurement for instrument checking in
unused cooking oil at 150 to 180 °C.
Please make sure that the reference value is recalculated if the type of oil or
oil supplier changes.
Your specific reference value:
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typically, based on Testo in-house reference, at an ambient temperature of
25 °C.
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