ABB DELTAsingle Manual De Instrucciones página 49

Protection Class
Installation requirements
To comply with the protection requirements the meter
must be mounted in protection class IP 51 enclosure or
better, according to IEC 60529.
Test and Verification
The DELTAsingle meter has a red LED in the middle of
the front (see No. 5 in fig. 1) that flashes in proportion
to the active energy that can be used when testing
and verifying the meter. This LED has a fixed pulse
frequency which is marked on the front of the meter
(see No. 16 in fig. 1).
Cleaning
If the meter is dirty and needs to be cleaned, use
lightly moistened tissue with a water based mild deter-
gent. Make sure no liquid goes into the meter as this
could damage the meter.
47