GEORGE FISCHER +GF+ SIGNET 2550, Instruction Manual

Page: 9 / 36

5
2.5 Wiring
To access the wiring terminals in the 2550 loosen
six captive outer cover screws (1), lift off outer
cover (2), then loosen two captive screws (3) and
remove access plate (4). A wiring diagram is
located on the inside of the access plate. Five
terminal strips are available.
TS5 Case
chassis ground terminals; see sec 2.6.
TS 1 Power input
terminal 1 negative
terminal 2 positive
14 to 20 AWG wire recommended.
Recommended power supply:
Model no. HB24-1.2A (24 V @ 1.2 A)
or equivalent
Power-One, Inc., Camarillo, Ca. U.S.A.
ph. 805/987-8741
toll free 800/678-9445
fax 805/388-0476
TS 2 Frequency output
terminal 1 black 5 to 12 VDC in
terminal 2 red open collector pulse out
terminal 3/4 shield cable shield/gnd
see sec 3.4 for detailed information.
18 to 22 AWG wire recommended.
TS 3 Analog output
4 to 20 mA or 0 to 20 mA output
terminal 1
positive (R+)
terminal 2 negative (R-)
18 to 22 AWG wire recommended.
TS4 Serial communication - future expansion
not available in this model.
Fuse
1
2
1
2
1
2
3
4
1
2
4-20 TS3
R+
TS4
B
A
TS2
RS485
BLK
RED
SHLD
SHLD
-
+
24V
TS1
P
ower Input
R
-
Wiring
Diagram
3/4 A
SLO-BLO
1
2
3
4
TS5
Case
3-2550.610-B
Analog Output
(Internally powered)
Serial
Communication
Frequency
Output
FLOW
GEORGE FISCHER +GF+
1
2
3
RUN
EDIT
ENTER
FLOW
4
+GF+ SIGNET
All wiring is installed through
the watertight ports in the
meter. Wrap threads with
sealing tape before threading
into sockets.