Sensor Wiring - GF SIGNET 9900 Bedienungsanleitung

Sensor Wiring

Wiring for:
2551-XX-11
Blind Magmeter
Black
Red
White
Shield
Input Wiring for 2551 and 2552 sensors
• Either Frequency or Digital (S
• Signet recommends confi guring these sensors
with the Digital (S
accurate and will also display reverse fl ow
(negative numbers).
• Input type is selected by choosing between
"SENSOR FREQ" and "SENSOR S3L" in the FLOW
sensor type INPUT menu.
• Loop Power cannot be used to power these sensors.
DC power is required.
Wiring for:
2552
Black
Brown
White
Blue
Shield
Only in case of EMI interference
See Frequency Output Technical
Notes (2551 & 2552) at right
L) may be used.
3
3
L) output because it is more
3
9900 S L Inputs
Frequency
3
S L
Frequency
Black
Brown
White
No
X
Blue
connection
Shield
4
2551 Technical Notes:
• When the blue jumper
3
illustrated here is
placed over both pins,
the 2551-XX-11
(Blind Magmeter)
outputs an open
4
collector frequency
signal. When the
3
jumper is removed
(or placed over one
pin for storage) the
2551-XX-11 outputs
a digital (S
(recommended).
Frequency Output
Technical Notes
(2551 & 2552):
• The frequency
output will be
displayed as positive
fl ow regardless of
the fl ow direction.
• 5 VDC power
required by the
2551 & 2552 is
supplied by the 9900.
No additional power
is required.
• Connect the silver
wire (shield) to earth
ground in case of EMI
noise interference.
• If EMI noise
interference
continues, disconnect
silver wire (shield)
from 9900
2552 Technical Notes:
• The 2552 outputs
an open collector
frequency signal that
can be connected to
the 9900.
9900 Transmitter Start-Up Guide
L) signal
3
9