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7.6
Loop Calibration
The RH and T loop calibration as recommended by the FDA for the phar maceutical, biotech, food
and beverage industries, can be easily performed with separate EE07 RH and T sensing probes. For
information on the high accuracy E+E humidity calibrator Humor 20 please see the data sheet at www.
epluse.com/humor20.
8
Troubleshooting
Error
Transmitter failure
Failure of the wireless
connection
Forgot password
9
Spare Parts
For replacement sensing probes and their accessories see the data sheets EE07 and EE871 at
www.epluse.com/EE240.
For replacement filer caps for the probes please also see data sheet accessories at
www.epluse.com/EE240.
RH measurement module for EE245
CO
replacement module for EE245
2
Display and front cover for EE244
User Manual EE240 Wireless Sensor Network
RH probe
Fig. 30 Loop calibration with Humor 20
Possible cause → Action / Correction
• Supply failure → Check the external supply or the batteries.
If the batteries are replaced within 7 days after the failure, the
communication will be automatically reestablished. If the batteries
are replaced after more than 7 days, it is sufficient to press the
push-button "Connect" at the base station to restore the connection.
• Supply failure → Check the external supply or the batteries.
• Newly erected obstacles (metal structures ...) attenuate the
wireless signal → Bypass the obstacles utilizing additional
router(s).
• Reset the base station E242 to the default factory settings (IP
address, password) see chapter 5.3 Network Reset
0...2 000 ppm
0...5 000 ppm
T probe
EE99-012
EE893-02C2
EE893-05C2
D07W
25
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