E+E Elektronik EE1900, User Manual, Page: 7 / 13

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User Manual EE1900 Humidity Module for Climate Chambers
For accurate measurement results it is of paramount importance to avoid temperature gradients along
the sensing probe. Whenever possible, install the entire probe in the environment to monitor. If the
probe is installed into a partition wall, the probe‘s backend shall be isolated thermally.
3 Electrical Connection
Supply
Fig. 2
Power supply
15 - 35 V DC
17 - 29 V AC
Connection supply and outputs
Use only power supply units according to EN 61140, protection class III (EU) and protection class II
(North America).
For performance according to the specifications, the electronics board must be properly grounded,
see chapter 4 (No. 9 “Grounding“ - Fig. 3).