User Manual

8 Tips and assistance
32
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8 Tips and assistance
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8.1. Questions and answers
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Question Possible causes/solution
- - - -
lights up in the display *
The sensor of the data logger is
defective.
> Contact your dealer or Testo
Customer Service.
* This is also shown in the display if a new measurement program
is transferred from the PC to the data logger. It goes out again after
approx. 8 seconds. In this case, there is no error!
If you have any questions, please contact your dealer or Testo
Customer Service. The contact details can be found on the back of
this document or on the Internet at www.testo.com/service-
contact.
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8.2. Accessories and spare parts
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Description Article no.
testo 174H mini data logger, 2-channel, incl.
wall bracket, battery (2 x CR 2032 lithium)
and calibration protocol
0572 6560
testo 174T mini data logger, 1-channel, incl.
wall bracket, battery (2 x CR 2032 lithium)
and calibration protocol
0572 1560
USB interface for programming and reading
out testo 174T and testo 174H loggers
0572 0500
testo ComSoft CD (if free download requiring
registration from website is not desired)
0572 0580
Battery, 3 V button cell (CR 2032 lithium),
please order 2 batteries per logger
0515 0028
ISO calibration certificate humidity, calibration
points 11.3 % RH; 50.0 % RH; 75.3 % RH at
+25 °C/+77 °F; per channel/instrument
0520 0176
ISO calibration certificate temperature,
calibration points -18 °C; 0 °C; +60 °C; per
channel/instrument
0520 0151