Electromagnetic Flowmeter
WaterMaster 4 Electrical Installation
IM/WM Issue 7 25
4.6 Output Connections
4.6.1 Frequency Outputs
Caution.
Refer to page 38 for output ratings.
Inductive loads must be suppressed or clamped to limit voltage swings.
Operation of outputs is programmable.
External isolators are not normally required as the pulse and alarm circuit is electrically separated
from all other WaterMaster connections.
Fig. 4.13 Frequency Output Connections
Note. Outputs 1 and 2 are polarity sensitive. The common (negative) connection for these outputs is
designated 'COM'.
31 32 XX XX 42
52
62
41 51 61
PLC or Datalogger
COM
O/P1 O/P2
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