www.janitza.com UMG 103-CBM
21
LEDs Display
The green LED is lit. The measuring and supply voltages are within the operating voltage
range. The device is in operation. The LED blinks for 0.5 sec every 5 sec.
The green LED is blinking.
Data transmission (RS-485) is active.
The LEDs blink simultaneously.
The data transmission (RS-485) is faulty.
The red LED is lit. Error in the device!
Have the device checked by the manufacturer!
The red LED is blinking. At least one current or voltage measurement input exceeds the
measuring range.
The LEDs blink alternately.
Firmware checksum error. Operation is faulty. Perform a firmware update.
Tab.: LED display patterns
4.2 LED display patterns
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