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8 Tips and assistance
Question
Can humidity,
temperature and dew
point measurements
be carried out?
The display
illumination remains
on after the
instrument has been
switched off
If we could not answer your question or the solutions given during
troubleshooting did not help: please contact your local dealer or the
Testo Customer Service. For contact data, see the back of this
document or website
8.2.
Calibration interval
Testo recommends that calibration of the measuring instrument is
carried out once a year by Testo Customer Service or a service
centre authorized by Testo.
8.3.
Accessories and spare parts
Description
testo 315-4 (including micro USB mains unit,
cable USB A - USB micro B)
Temperature/humidity module
Topsafe
USB mains unit including cable
Basic printer
Spare printer paper (6 rolls)
Control and calibration set for humidity sensors
(11.3% RH and 75.3% RH)
18
Possible causes/solutions
Humidity, temperature and dew point
measurements are possible with the
temperature/humidity module
(accessory).
The display illumination goes out as
soon as the instrument has shut down.
While the display is illuminated, the
instrument cannot be switched on.
www.testo.com/service-contact
Article no.
0632 3155
0636 9725
0516 0221
0554 1105
0554 0549
0554 0568
0554 0660
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