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S i g n a l E R R O R
Fig. 28 - Display message for the signal error alarm.
5.4.1 Description of the alarm
The unit in question receives no or a too weak signal from the RH/T sensor (if it's a masters) or from the
foregoing EBC (if it's a slave) for its operations.
5.4.2 Remaining EBC functions during this alarm
Humidify: No
Dehumidify: No
Air circulation between case and EBC: Yes
Pump: Will once pump down with the occurrence of the alarm
Fan(s) for the device cooling: No
Slave control: No
5.4.3 Possible reasons and solutions
NOTE: If the measured humidity inside the case reaches 5%RH or 95%RH respectively, the EBC master
unit interprets this signal as being incorrect and issues the signal error alarm. In consequence the EBC stops
conditioning the air and will only continue once the measured value comes back to the permissible range
again (see section 9 "Technical data" on p. 53). This is not a failure, but an intended safety reaction
programmed into the EBC, as with humidity levels measured to be so extreme, it is anticipated that the
sensor is actually broken, delivering false values.
For master units issuing the alarm: the controller does not receive a correct or any signal from the RH/T
sensor. If the actual humidity level in the case is not beyond the permissible values (see above), continue as
follows (investigating in the outlined order):
1) Check the cable, the RJ45 plug on the front of the EBC and whether it is plugged to the correct jack
(Sensor & Control in).
2) If all seems to be in order, check the sensor inside the case for any obvious flaws (damages on the cable,
damages on the sensor housing or on the sensor chip that juts out on the end of the housing,...).
Applies analogously to the individual products of series EBC10/11/12 (Rev.3). As of 24.11.2014. Subject
to modification.
miniClima - Manual_EBC10-11-12(Rev.3)_en
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