beautypg.com

1 system power/loop connections, Enter a b a, Enter – GF Signet 8550 ProcessPro Flow Transmitter User Manual

Page 3

background image

3

Signet 8550-3 Flow Transmitter Instructions

3.1 System Power/Loop Connections

Snsr 2 Gnd

(SHIELD)

Snsr 2 IN

(RED)

Snsr 2 V+

(BLACK)

Snsr 1 Gnd

(SHIELD)

Snsr 1 IN

(RED)

Snsr 1 V+

(BLACK)

16

15

14

13

12

11

Terminals

No Aux Power
515/3-8510-XX
525
2100
2536/3-8512-XX
2540/2541

Aux Power Required
2000
2507
2551
2552
Open-collector input signals

Maximum cable length is 60 m (200 ft.)
for 515/8510-XX, 525 and any sinusoidal
fl ow signal.

Maximum cable length is 305 m (1000 ft).
for 2536/8512-XX, 2540/2541 and any
open-collector fl ow signal.

Flow

Flow1: 6.25 GPM
Flow2: 9.75 GPM

ENTER

A

B

A

”

200 ft. (60 m)

B

”

200 ft. (60 m)

3.2 Sensor Input Connections

Wiring Tips:
• Do not route sensor cable in conduit containing AC power wiring. Electrical

noise may interfere with sensor signal.

• Routing sensor cable in grounded metal conduit will help prevent electrical

noise and mechanical damage.

• Seal cable entry points to prevent moisture damage.
• Only one wire should be inserted into a terminal. Splice double wires outside

the terminal.

8550 3

Flow

Flow1: 6.25 GPM
Flow2: 9.75 GPM

ENTER

A

B

A

”

1000 ft. (300 m)

B

”

1000 ft. (300 m)

+

6

5

4

3

2

1

6

5

4

3

2

1

6

5

4

3

2

1

6

5

4

3

2

1

+

+

+


+

+


+

+

+

+

6

5

4

3

2

1

+

+

NC

NC

Loop 2 –

Loop 2 +

System Power/Loop 1 –

System Power/Loop 1 +

AUX Power –

AUX Power +

Loop 2 –

Loop 2 +

System Power/Loop 1 –

System Power/Loop 1 +

AUX Power –

AUX Power +

4-20 mA in

4-20 mA in

4-20 mA in

4-20 mA in

Channel 3

Channel 4

Channel 1

Channel 2

Loop 2 –

Loop 2 +

System Power/Loop 1 –

System Power/Loop 1 +

AUX Power –

AUX Power +

Channel 2

4-20 mA

Channel 1

4-20 mA

Channel 2

4-20 mA

Channel 1

4-20 mA

Loop 2 –

Loop 2 +

System Power/Loop 1 –

System Power/Loop 1 +

AUX Power –

AUX Power +

Loop 2 –

Loop 2 +

System Power/Loop 1 –

System Power/Loop 1 +

AUX Power –

AUX Power +

Auxiliary Power Note:
Auxiliary power is necessary for flow sensors that require more than 1.5 mA of current.
This includes the following Signet flow sensors: 2000, 2507, 2551, 2552 and all Open Collector signal inputs.

Power

Supply

12-24 VDC

Example: Two transmitters connected to PLC/Recorder with separate power supply

Internal

PLC Connection

Power

Supply

12-24 VDC

Transmitter

Terminals

Connection to a PLC with built-in power supply

Power

Supply

12-24 VDC

Connection to a PLC/Recorder, separate supply

PLC or Recorder

Transmitter

Terminals

Power

Supply

12-24 VDC

Stand-alone application, no current loop used

Transmitter

Terminals

PLC Terminals

PLC or Recorder

Transmitter 1

Terminals

Transmitter 2

Terminals