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You can have 3 types of alarm board:-
a)
An alarm board with no relays, which will simply allow you to fit analogue and/or
serial output options.
b)
An alarm board with 2 relays, to which you can also fit analogue and/or serial
output options.
c)
An alarm board with 4 relays, to which you can also fit analogue and/or serial
output options.
For failsafe operation (where contacts open on alarm or when power is lost to the meter) set the
jumpers for OPEN CONTACTS as shown below, and DE-ENERGISE on alarm, in the alarm
setup menu. To access the alarm board, remove power from meter, including any power which
might be on the alarm output board.
Look on the top and bottom surfaces of the case, near the rear. You will see two small screws,
one on each surface. Remove both screws. Now, clip off the front bezel and slide the meter
assembly carefully out via the front of the case. The relay board plugs into the main board. Gently
separate the two boards.
When you have set the jumpers, refit the board to the meter and carefully slide the
assembly back into the case.
Fit the two small screws to the top and bottom surfaces of the case.
Open Contacts
Closed Contacts
AL1
AL2
AL3
AL4
Serial Data
Comms Option
Analogue
Output
Option
Select relay output contact
status, when relays are
de-energised (power removed
from meter) by placing these
jumpers. Each relay has a snubbing
network to minimise contact sparking.
Relay
2n2
100R
Warning:
Disconnect all cables from
option board before adjusting
Alarm Board Configuration
Warning:
All switched power must
come from the same phase.
Where the product is intended for “UL” installations
removal or addition of option boards is not permitted.
!
Warning:
Disconnect
all power before exposing
the rear of the meter
