Carlo Gavazzi WM4-96 - Manual (Page 76)

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76
Technical features
Filters
71
Single phase connections
72
78
83
GSM modem for the transmission of SMS messages: of
data logging and energy meters. The alarms can be sent
also automatically while the variables can be recalled by
means of special SMS question codes (see “How to use the
SMS” on page 52).
GSM kit type-tested for WM4: Siemens kit (external)
model “TC35 TERMINAL” included GSM module, antenna
and 230 power supply.
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Digital Outputs (on request)
To be used as alarms and/or retransmission of the energy,
gas, water metering and/or outputs remotely controlled by
means of the serial communication port. The outputs are
completely programmable independently of the type of
module being used.
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Pulse outputs (on request)
Number of outputs: up to 4.
Type: from 1 to 1000 pulses programmable for K-M-G Wh,
K-M-G varh, open collector (NPN transistor).
V
ON
1.2 VDC/ max. 100 mA, V
OFF
30 VDC max.
Outputs connectable to total and/or partial meters.
Pulse duration: 220 ms (ON),
≥
220 ms (OFF) according to
DIN43864.
Insulation: by means of optocouplers, 4000 V
RMS
between
output and measuring inputs, 4000 V
RMS
between output
and power supply input.
Notes: the outputs can be open collector type or relay type
(for the relay output refer to the characteristics described in
the “alarm outputs” section).