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FW_F127PELTP_v1702_02_EN
Type AP
A passive 4-20mA signal proportional to the flow rate is available with this option. When a power
supply is connected but the output is disabled, a 3.5mA signal will be generated.
Max. driving capacity 1000 Ohm. This output does loop power the unit as well.
Fig. 15: Terminal connections - Passive 4-20mA analog output (typical)
Type AU
A 0-10VDC signal proportional to the flow rate is available with this option.
Max. load 10mA @ 10VDC. (Requires power supply type PD/PF/PM).
Fig. 16: Terminal connections - Active 0-10V analog output (typical)
Terminal 09-11; Terminal 12-14; Flowmeter input A and B:
Three basic types of flowmeter signals can be connected to the unit: pulse, active pulse or coil. The
connections for flowmeter A (Terminal 09-11) and B (Terminal 12-14) are the same. The screen of
the signal wire must be connected to the related common ground terminal (unless earthed at the
sensor itself) The maximum input frequency is approximately 10 kHz (depending on the type of
signal). The input signal type has to be selected in the flowmeter setup (read chapter 3).
Sine-wave signal (Coil):
The F127-P is suitable for use with flowmeters which have a coil output signal.
Two sensitivity levels can be selected:
COIL-LO: sensitivity from about 80mV
pp
;
COIL-HI: sensitivity from about 20mV
pp
;
type ZF, COIL-HI: sensitivity from about 10mV
pp
;
type ZG, COIL-HI: sensitivity from about 5mV
pp
.
Fig. 17: Terminal connections - Coil signal input (typical)
