Georg Fischer 7000/7001 Operating Manual

Signet 7000/7001 Vortex Flow Sensors

*3-7000.090*

3-7000.090 Rev. F 10/05 English

English

1. Mounting Location ...................................................... 1

2. Installation.................................................................... 1

3. Wiring Preparation ...................................................... 2

4. Wiring Options - Frequency Output Models ............. 3

5. Calibration - Frequency Output Models .................... 3

6. Wiring Options - Current Output Models .................. 4

7. Calibration - Current Output Models ......................... 5

8. Specifi cations .............................................................. 6

9. Spare Parts .................................................................. 8

10. Sensor Ordering Tree ............................................... 10

11. End Connectors Ordering Tree ............................... 10

12. Sensor Assembly Part Numbers ..............................11

1. Mounting Location

Minimum upstream/downstream sensor mounting requirements:

• The sensor must be mounted in a rigid pipe to minimize vibration. Always maximize distance
between the sensor and pump source.

• Horizontal pipe runs: All mounting angles are acceptable. Avoid air bubbles.

• Vertical pipe runs: All mounting angles are acceptable, with upward fl ow preferred.

• A Reynold’s Number is a dimensionless number used to determine the
effects of viscosity, specifi c gravity, and velocity on fl ow
sensor performance. To maintain system accuracy, a
Reynold’s Number greater than 7,500 is required.

• Reynold's number = 3162.76 x Q x Sg/(µ x ID)
where: Q = Flow Rate in GPM;
Sg = Specifi c Gravity;
µ = Dynamic Viscosity in Centipoise;
ID = inside diameter in inches

• Minimum downstream pipe backpressure levels
(full pipes) are required to prevent cavitation
within the sensor (section 8).

Fluid flow

Sensor is shown without

its usual Cap and Adaptor

Vortices

"bluff body"

Piezoelectric
sensor

OPTION: Integral
Transmitter (local
readout)

Signet Flow

Transmitter

Order

Signet

3-8550-1,
3-8550-2, or
3-8550-3

Inlet Outlet

Flange

Valve/Gate

+GF+

XX DN XX X

XX

10 x I.D. 5 x I.D.

+GF+

XX DN XX X

XX

25 x I.D. 5 x I.D.

Reducer

25 x I.D. 5 x I.D.

2 x 90° Elbow
3 dimensions

25 x I.D. 5 x I.D.

2. Installation

• Choose a mounting location that satisfi es section 1 require­ments.

Connector

Pipe Union nut

End

Connector

O-Ring

+GF+

XX DN XX X

XX

Flow

• Install sensor with arrow pointing in the direction of fl ow. These
fl ow sensors are not for bi-directional fl ow.

Sensor available in

PP, PVC, PVDF

O-Ring

+GF+

XX DN XX X

XX

90° Elbow

+GF+

XX DN XX X

XX

15 x I.D. 5 x I.D.

+GF+

XX DN XX X

XX

2 x 90° Elbow

+GF+

XX DN XX X

XX

20 x I.D. 5 x I.D.

.

2.1 Fusion Socket or Solvent Cement Socket

• Fusion socket version: available in HP PVDF, PVDF, or PP.
A George Fischer Socket Fusion Joining Machine is required to
install the end connectors on the pipeline. Refer to the joining
machine manual for installation details.

• Solvent socket version: available in PVC. Follow the PVC ce­ment manufacturer's recommendations and instructions. Avoid
excess cement in fi tting joints to prevent port obstruction.

SAFETY INSTRUCTIONS

1. Do not remove from pressurized lines.

2. Never install sensor without O-Rings.

3. Confirm chemical compatibility before use.

4. Do not exceed maximum temperature/
pressure specifications.

5. Do not install/service without following mounting procedure.

6. Wear safety goggles and faceshield during installation/service.

7. Do not alter product construction.

8. Failure to follow safety instructions could result in severe
personal injury.

2.2 IR/Butt Fusion Sensors

• Available in PVDF or PP. A George Fischer IR weld or Butt
Fusion Joining Machine is required to install the end connec­tors onto pipeline. Refer to the IR weld or butt fusion joining
machine manual for installation details.

IR/Butt Fusion
Connector Kit

+GF+

XX DN XX X

XX

2.3 BCF/IR Sensors

• A George Fischer SYGEF HP BCF/IR Fusion Joining Machine
is required to install the end connections. Refer to the SYGEF
BCF/IR fusion joining machine manual for installation details.

SAFETY INSTRUCTIONS

1. Do not remove from pressurized lines.

2. Never install sensor without O-Rings.

3. Confirm chemical compatibility before use.

4. Do not exceed maximum temperature/pressure
specifications.

5. Do not install/service without following mounting procedure.

6. Wear safety goggles and faceshield during installation/service.

7. Do not alter product construction.

8. Failure to follow safety instructions could result in severe personal injury.

3. Wiring Preparation

Pipe

Union nut

Pipe

Union

nut

BCF/IR

Connector

End

Connector

End

O-Ring

O-Ring,

white

NOTE:
Union Connectors are sold

separately (except for HP

- High Purity.)

Flow

+GF+

XX DN XX X

XX

Flow

O-Ring

O-Ring,

white

The vortex sensor's cap base is reversible for either upstream or downstream conduit port orientation. Optional: Refer to steps (A to

F) for conduit port reversal instructions. Required: Refer to steps (A to G) for external wiring requirements.

A

+GF+

XX DN XX X

XX

Flow

Conduit port
downstream

B

1. Locking
Ring

2. Screw

Mounting base

(top)

Turn Conduit Base 1/2

C

turn to the left and lift

+GF+

XX DN XX X

XX

D

Twist Conduit Base

1/2 turn to the right

Conduit
port

+GF+

XX DN XX X

XX

change

E

Conduit
upstream

Flow

+GF+

XX DN XX X

XX

1. Insert locking ring

2. Install screw

F

G

Threaded conduit (customer supplied) OR

Watertight connector (customer supplied)

Loop cable
downward to prevent
moisture seepage
into housing

14-22

AWG.

100-150 mm

+GF+

XX DN XX X

XX

4-6 in.

PG 13.5 or 1/2 in. NPT-conduit port

2 Signet 7000/7001 Vortex Flow Sensors

4. Wiring Options - Frequency Output Models

The open-collector frequency output requires a three­wire connection between the sensor and the monitoring
device.

To wire the vortex sensor frequency output to remote
equipment:

• Cable with single twisted-pair plus shield recommend-

4-20 mA &
FREQ. OUT

W
BLACK
RED

HITE

+

F
R

E

Q

O

U

T

O

N
L

Y

ed.

• Maximum cable length 200 ft.

• Install cable through a conduit port and connect as
shown to the terminal block inside the vortex sensor
cap.

• Open collector voltage is supplied by Signet instruments.

• Use the 2535/2536 input card setting when wiring to the Signet 9010 Intelek-Pro Flow Controller

To wire the vortex sensor frequency output to a Signet 8550
Integral transmitter:

• Disconnect the sensor wires completely from the vortex sensor
cap. The cap will not be used.

• Connect the Vortex sensor to the 8550 as shown.

White Ground (frequency out)
Loop - (current output)

Red Open Collector pulse (for frequency output)
Not used for current output

Black +3.5-24 VDC +DC Voltage

-

Ground (for frequency out)
Loop - (for current output)

+

+3.5-24 VDC +DC Voltage

FREQ OUT ONLY

Open Collector pulse (for frequency output)
Not used for current output systems

Out to
remote equipment

Sensr Gnd

9

(SHIELD)

Sensr IN

8

(RED)

Sensr V+

7

(BLACK)

Signet 8550 Integral fl ow transmitter

+GF+

XX DN XX X

XX

5. Calibration - Frequency Output Models

This sensor model provides an open-collector frequency output directly proportional to the fl ow rate. The frequency output is held at

0 Hz. When the fl ow rate is below the minimum operating range (see specs.). The following K-factors represent the number of pulses
generated by the sensor for each engineering unit of water measured. If fl uids other than water are used, then custom calibration is
required.

K-Factors - ANSI & Metric Piping Systems

Sensor
Material

PVC, SCH 80
3-7000-5x

PVC, Metric
3-7000-6x

PP, Metric
3-7000-4x

PVDF, Metric
3-7000-3x

HP PVDF
BCF/IR Socket (-2x)

HP PVDF
BCF/IR Butt (-1x)

Flow
Units

U.S. Gallons 1837.39 802.34 361.30 138.76 88.296 39.133

Liters 485.44 211.98 95.455 36.660 23.328 10.339

U.S. Gallons 1248.31 538.45 243.84 114.66 61.415 29.686

Liters 329.81 140.50 64.422 30.292 16.226 7.843

U.S. Gallons 1385.46 572.51 265.76 138.41 70.719 35.096

Liters 366.04 151.26 70.213 36.568 18.684 9.272

U.S. Gallons 1381.71 582.63 265.97 111.81 50.732 25.443

Liters 365.05 153.93 70.270 29.540 13.403 6.722

U.S. Gallons 1396.90 575.71 254.11 110.86 50.431 25.537

Liters 369.07 152.10 67.137 29.288 13.324 6.747

U.S. Gallons 1400.00 575.70 254.31 110.48 51.855 25.568

Liters 369.88 152.10 67.190 29.188 13.700 6.755

d20 DN15 (-x1) d25 DN20 (-x2) d32 DN25 (-x3) d40 DN32 (-x4) d50 DN40 (-x5) d63 DN50 (-x6)

(i.d.≈0.5 inch) (i.d.≈0.75 inch) (i.d.≈1 inch) (i.d.≈1.25 inch) (i.d≈1.5 inch) (i.d≈2 inch)

K-factor Conversion Formulas:

1 U.S. gallon = 0.003785 cubic meters
1 U.S. gallon = 0.0000003069 acre feet
1 U.S. gallon = 8.3454 pounds of water

1 U.S. gallon = 3.785 liters
1 U.S. gallon = 0.8327 imperial gallons

3Signet 7000/7001 Vortex Flow Sensors

6. Wiring Options - Current Output Models

4-20 mA &
FREQ. OUT

WHITE
BLACK

+

Q

E
R
F

T

U

O

Y

L

N

RED

O

4 to 20 mA

PLC

• PLC without an internal trans-
mitter power supply

• PLC with a 4 to 20 mA indicator

4-20 mA &
FREQ. O

WHITE
BLACK

24*

VDC

4 to 20 mA

CH +

CH ­(gnd)

-

250Ω*

-

+

+GF+

XX DN XX X

XX

UT

RED

+

Q

E
R
F

T

U

O

LY

N

O

Fuse**
1/8A

External

power
supply

+

indicator

CH +

CH ­(gnd)

-

+GF+

XX DN XX X

-

+

Fuse**
1/8A

XX

External

power
supply

VDC

+

24*

4-20 mA &

UT

FREQ. O

WHITE
BLACK

RED

+

Q

E
R
F

T

U

O

Y

L

N

O

1 to 5 VDC

recorder

• PLC with a 1 to 5 VDC chart
recorder

-

+

External

power
supply

+GF+

XX DN XX X

XX

Fuse**
1/8A

* Refer to the maximum Loop Impedance for minimum operating voltage requirements in the Specifi cations section.
** 1/8 Amp. fuse recommended (customer supplied)

4 Signet 7000/7001 Vortex Flow Sensors

+

24*

VDC

-

CH +

CH -

250Ω*

(gnd)