Tips And Assistance; Accessories And Spare Parts; Questions And Answers - testo 623 Manual De Instrucciones

8 Tips and assistance

8 Tips and assistance
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8.1.

Accessories and spare parts

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Description
DKD humidity calibration certificate,
electronic hygrometer; calibration points
11.3 % RH and 75.3 % RH at 25 °C
ISO humidity calibration certificate, calibration
points 11.3 % RH and 75.3 % RH at 25 °C
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8.2.

Questions and answers

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Question
Instrument displays
Instrument displays
Instrument displays
=== Ende der Liste für T extm arke Inhalt ===
If we could not answer your question, please contact your dealer or
Testo Customer Service. For contact details see the rear side of
this document or the web page www.testo.com/service-contact
38
Possible causes
LO
Below -20 °C
HI
Above +70 °C
Battery life is approx. 1 month
Article no.
0520 0206
0520 0006