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The
transmitter has three outputs, OUTPUT 1, 2, and
3.
OUTPUT 1 is a power supply output,
which can be used for power supply of external counter
circuit. The voltage of the output can vary from
20 to 32 V DC.
OUTPUT 2 can be selected for one
of three functions:
1: Pulse signal, 0-5 c/s. The signal is taken to
a counter, electronic or electromechanical, for
indication of the total volume, e.g. in litres.
2: Sign for OUTPUT 3. The signal indicates the flow
direction and can be taken to an UP/DOWN counter,
which is actuated by pulses from OUTPUT 3.
3: The output signal from the pre-set counter. Before
start of measuring a SET-point via the display is
inserted, and the pre-set counter is reset. When
the required volume is achieved, OUTPUT 2 gives
a stopsignal.
OUTPUT 3 can be selected for one
of two functions:
1: Pulse signal 0-1000 c/s. The signal can for instance
be taken to a counter for volume registration. The
signal can also be used for registration of actual
flow.
2: Current signal 4-20mA (only for transmitter in
extended version). The signal can be taken to a
regulator for controlling the liquid flow.
Besides these three outputs it is possible to connect
the flow transmitter direct to the display unit
PD 210. It is also possible to connect the extended
version transmitter to a communication system for
data processing. |
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