ZS/S 1.1: The red error indicator (LED) is blinking or permanently ON. What can I do?
LED is permanently ON:
Check IR communication interfaces of meter and meter interface module. Both devices must be installed close to each other, otherwise communication cannot be established and red error indication LED is permanently ON. Check also if IR interfaces are clean and free of dust and dirt.
LED is blinking:
Check parameter settings in ETS. Settings must comply exactly with features of the meter, otherwise the error indication LED is blinking.