Georg Fischer 8550 Operating Manual

Signet 8550-1 Flow Transmitter

*3-8550.090-1*

3-8550.090-1 J 4/05 English

English

WARNING!

• Remove power to unit before wiring input and out­put connections.

• Follow instructions carefully to avoid personal
injury.

1. Specifi cations

Dimensions

Optional

96 mm

(3.8 in.)

FRONT VIEW

Field Mount &

Panel Mount

96 mm
(3.8 in.)

41 mm
(1.6 in.

)

SIDE VIEW

Panel Mount

Rear
Cover

56 mm
(2.2 in.)

97 mm

(3.8 in.)

General

Compatibility: Signet Flow Sensors (w/freq out)

Enclosure:

• Rating: NEMA 4X/IP65 front

• Case: PBT

• Panel case gasket: Neoprene

• Window: Polyurethane coated polycarbonate

• Keypad: Sealed 4-key silicone rubber

• Weight: Approx. 325g (12 oz.)

Display:

• Alphanumeric 2 x 16 LCD

• Update rate: 1 second

• Contrast: User selected, 5 levels

• Display accuracy: ±0.5% of reading @ 25ºC

• Thermal sensitivity shift: ±0.005% of reading per ºC

Electrical

• Power: 12 to 24 VDC ±10%, regulated
61 mA max current

Sensor Input:

• Range: 0.5 to 1500 Hz

• Sensor power: 2-wire: 1.5 mA @ 5 VDC ± 1%
3 or 4 wire: 20 mA @ 5 VDC ± 1%
Optically isolated from current loop

• Short circuit protected

92 mm
(3.6 in.)

Contents

1. Specifi cations

2. Installation

Flow 6.25 GPM

Total 1234567.8>

Signet Flow
Transmitter

3. Electrical Connections

4. Menu Functions

82 mm
(3.23 in.)

106 mm
(4.18 in.)

SIDE VIEW

Field Mount w/
8050 Universal base

102 mm

(4.0 in.)

SIDE VIEW

Field Mount w/
8051 Integral kit

Current output:

• 4 to 20 mA, isolated, fully adjustable and reversible

• Max loop impedance: 50 Ω max. @ 12 V
325 Ω max. @ 18 V
600 Ω max. @ 24V

• Update rate: 100 ms

• Accuracy: ±0.03 mA

Open-collector output, optically isolated:

• 50 mA max. sink, 30 VDC maximum pull-up voltage.

• Programmable for:

• High or Low setpoint with adjustable hysteresis

• Pulse operation (max rate: 300 pulses/min).

Environmental

• Operating temperature: -10 to 70°C (14 to 158°F)

• Storage temperature: -15 to 80°C (5 to 176°F)

• Relative humidity: 0 to 95%, non-condensing

• Maximum altitude: 2000 m (6562 ft)

• Insulation category: II

• Pollution degree: 2

Standards and Approvals

• CSA, CE, UL listed

• Immunity & Emissions: EN61326

• Manufactured under ISO 9001 and ISO 14001

ENTER

96 mm

(3.8 in.)

2. Installation

ProcessPro transmitters are available in two styles: panel mount and fi eld mount. The panel mount is supplied with the necessary
hardware to install the transmitter. This manual includes complete panel mounting instructions.
Field mounting requires one of two separate mounting kits. The 3-8051 integral kit joins the sensor and instrument together into a single
package. The 3-8050 Universal kit enables the transmitter to be installed virtually anywhere.
Detailed instructions for integral mounting or other fi eld installation options are included with the 3-8051 Integral kit or the 3-8050
Universal kit.

2.1 Panel Installation

1. The panel mount transmitter is designed for installation using a 1/4 DIN Punch. For
manual panel cutout, an adhesive template is provided as an installation guide.
Recommended clearance on all sides between instruments is 1 inch.

gasket

panel

terminals

mounting

bracket

2. Place gasket on instrument, and install in panel.

3. Slide mounting bracket over back of instrument until quick-clips snap into latches on

latch

u

p

r

t

u

w

O

P

m
e
t

s

4

y

S

-

p

o
o

L

r

2

w

P

m
e
t

s
y
S

+

p

o
o
L

u

tp

1

u

O

3

side of instrument.

4. To remove, secure instrument temporarily with tape from front or grip from rear of
instrument. DO NOT RELEASE.

Panel Mount
Installation Detail

Press quick-clips outward and remove.

3. Electrical Connections

Caution: Failure to fully open terminal jaws before removing wire may permanently damage instrument.

Wiring Procedure

1. Remove 0.5 - 0.625 in. (13-16 mm) of insulation from wire end.

2. Press the orange terminal lever downward with a small screwdriver to open terminal jaws.

3. Insert exposed (non-insulated) wire end in terminal hole until it bottoms out.

4. Release orange terminal lever to secure wire in place. Gently pull on each wire to ensure a good connection.

Wiring Removal Procedure

1. Press the orange terminal lever downward with a small screwdriver to open terminal jaws.

2. When fully open, remove wire from terminal.

Terminals 3 and 4: Loop Power

12-24 VDC ±10% system power

and current loop output.

Max. loop impedance:

50 Ω max. @ 12 V
325 Ω max. @ 18 V
600 Ω max. @ 24 V

Terminals 7-9: Flow sensor input

t

t

-

+

d
n

G
r
s

n

)

e

S

D

L
IE

H
S
(

7

N

I
r
s

n
e

S

)
D

E
R
(

6

+

V
r
s

n
e

)

S

K
C
A

L
B
(

5

quick-clips

2

1

System Pwr

4

Loop -

System Pwr

3

Loop +

AUX

2

Power -

AUX

1

Power +

Terminals 1 and 2: AUXILIARY power

Used only if the fl ow sensor requires more
than 1.5 mA current. For Signet sensors
this is limited to the following products:

• 2000 • 2507 • 2551

• Open Collector Input

Output -

6

Output +

5

Internal open-collector

output circuit

S

Isolation

D

15

Output --

Output +

Sensr Gnd

9

(SHIELD)

Sensr IN

8

(RED)

Sensr V+

7

(BLACK)

Internal open-collector

output circuit

S

Isolation

D

Outputs

15

1

_

+

SINGLE CHANNEL DUAL CHANNEL

Terminals 5 and 6: Open-collector Output

A transistor output, programmable (see CALIBRATE menu) as:

• High or Low setpoint with adjustable hysteresis

• Volumetric pulse

• Frequency based on fl ow rate

• May be disabled (Off) if not used.

2

2 Signet 8550-1 Flow Transmitter

3.1 System Power/Loop Connections

Stand-alone application, no current loop used

System Pwr Loop -

System Pwr Loop +

* See AUX POWER Note

AUX Power -

AUX Power +

Transmitter

Terminals

4

4

3

3

2

2

1

1

­+

Power

Supply

12-24 VDC

Connection to a PLC/Recorder, separate supply

Connection to a PLC with built-in power supply

PLC or Recorder

Transmitter

Terminals

System Pwr Loop -

System Pwr Loop +

AUX Power -

AUX Power +

Transmitter

Terminals

4

4

3

3

2

2

1

1

+

-

-

12-24 VDC

+

Loop Input

4-20 mA

Power

Supply

System Pwr Loop -

System Pwr Loop +

AUX Power -

AUX Power +

* See AUX POWER Note * See AUX POWER Note

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

PLC or Recorder

+

Channel 1
4-20 mA in

-

-

System Pwr Loop -

System Pwr Loop +

AUX Power -

AUX Power +

Transmitter 1

Terminals

4

3

2

1

+

Channel 2
4-20 mA in

Transmitter 2

Terminals

4

4

3

3

2

2

1

1

Internal

PLC

4

System Pwr Loop -

4

3

System Pwr Loop +

3

2

AUX Power -

2

1

AUX Power +

1

Connection

PLC Terminals

Loop Input

+

4-20 mA

-

Power

-

Supply

+

12Ð24 VDC

Power

-

Supply

12-24 VDC

+

Auxiliary Power note:

AUXILIARY power is used only if the flow sensor requires more than 1.5 mA current.
For Signet sensors this is limited to the following products: 2000, 2507, 2551, open collector input signals

3.2 Sensor Input Connections

Wiring Tips:

Transmitter

Total 1234567.8>

• 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.

Terminals

Sensr Gnd

9

(SHIELD)

Sensr IN

8

(RED)

Sensr V+

7

(BLACK)

No Aux Power

515/3-8510-XX
525
2100
2517
2536/3-8512-XX
2540
7000 Vortex

Aux Power

2000
2507
2551
Open Coll.
Input

Maximum cable length is 200 ft. for 515/8510-XX,
525 , 2517 and any sinusoidal fl ow signal.

Transmitter

Total 1234567.8>

Maximum cable length is 1000 ft. for
2536/8512-XX, 2540, vortex, and any open
collector fl ow signal.

* See AUX POWER Note

Flow 6.25 GPM

Signet Flow
Transmitter

ENTER

≤

200 ft. (61 m)

Flow 6.25 GPM

Signet Flow
Transmitter

ENTER

≤

1000 ft. (300 m)

3 Signet 8550-1 Flow Transmitter