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F-4600 With LCD Flow Meter Manual 06/18 - 2020-3 / 35874 Page 36
8.3 AUXILIARY OUTPUTS
When congured with auxiliary pulse outputs, your F-4600 will be equipped with the ability to
send contact closure pulses for use with a remote totalizer or building automation system.
Output Rating:
Contact closure output.
Pulse Duration – Selectable 50 ms, 100 ms, 500 ms (default), or 1,000 ms
Contact rating – 50 mA, 30 VDC maximum
If the F-4600 is congured with pulse outputs, the displayed total menu pages that correspond
to each pulse output will indicate the pulse output number and the scaling for the pulse output.
The engineering unit associated with the displayed total will also apply to the pulse output. Both
the function of the pulse output, as well as the scaling, can be changed during the commission
process.
8.3.1 Pulse Outputs
The following pulse outputs are available from the F-4600:
Total Volume - Units match LCD totalizer. Output can be scaled for 1, 10, or 100.
Example: if congured for 10, the meter will require 10 LCD display accumulations
before a pulse output is provided.
Alarm - Latching output. The output will remain open when the meter is not in alarm,
and will latch closed when the meter is in alarm. A list of alarms can be found in section
5.0, Diagnostic Functions.
MODBUS Coil - Latching output. The output will remain open when the MODBUS coil
associated with the auxiliary terminal is inactive, and the output will latch shut when
the coil is activated. The MODBUS memory map which describes the registers associated
with the coils, and how to use them, is described in Section 7.1, MODBUS Memory Map.
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