Georg Fischer 7000/7001 Data Sheet

Signet 7000/7001 Vortex Flow Sensors

Blind Transmitter or Frequency Sensor

End connectors not shown.

Description

Signet Vortex Flow Sensors provide
extremely accurate and reliable flow
measurement with no moving parts.
Constructed of durable PVC, these
sensors can accommodate applica­tions such as chemical delivery.

Each unit is injection-molded to
achieve a smooth surface finish for
cleanliness and better chemical
compatibility. This drastically reduc­es manufacturing inconsistencies
and in-service particulation associ­ated with machined surfaces. End
connectors simplify installation and
allow unparalleled configuration
versatility.

The sensors feature either frequency
output or fixed 4 to 20 mA current
output, and can be used with the
comprehensive offering of Signet
flow instruments to achieve en­hanced system functionality. Integral
transmitters with local displays and
many additional features are avail­able as accessories, or select from
a wider variety of panel-mount flow
instruments.

Features

• No moving parts

• Injection-molded
construction for
excellent surface­finish quality

• Piezo detection

• Six sizes in the
range DN 15 to DN
50 (0.5 to 2 in.)

• Vibration-noise and
reverse polarity
protected

• PVC construction

Application

• Process Flow

• Reverse Osmosis

• Process Cooling
Water

• Neutralization

Systems

• Waste Water

Effluent

• Scrubber Control

• Chemical Delivery

• Accurate Batching

• Plating rinse

• Not suitable for
gases

System Overview

Signet Flow Instrument
(sold separately)
8550 5075
8900 5500
5600

Signet

7000
Vortex Flow
Sensor

Signet
End Connectors
(sold separately)

62

Pipe, Tank, Wall MountPanel Mount Integral Mount

Signet Flow
Instrument

(sold separately)

8550

Signet Universal
Adapter Kit

(sold separately)

Signet

Vortex Flow
Sensor

7000

(3-8050)

Signet Flow Instrument

(sold separately)

8550

Signet

Vortex Flow
Sensor

Solvent Socket

7000

4 to 20 mA Input

Chart

Recorder

Signet

Vortex Flow
Sensor with
4 to 20 mA
Output

OR

7001

Programable

Logic

Controller

PLC

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Specifications

General

Linear Flow range:

• DN 15 to DN 20 (0.5 to 0.75 in.) sensors:

0.5 to 4 m/s (1.6 to 13 ft/s)

• DN 25 to DN 32 (1.0 to 1.25 in.) sensors:

0.4 to 4 m/s (1.3 to 13 ft/s)

• DN 40 to DN 50 (1.5 to 2.0 in.) sensors:

0.3 to 4 m/s (1.0 to 13 ft/s)
NOTE: Below these velocity ranges, Vortex
output is non-linear.

Pipe size range: 1/2 to 2 in.
Linearity: ±1% of reading @ 25 °C
Repeatability: ±0.5% of reading @ 25 °C
Reynolds Number: 7500
Enclosure

• Rating: NEMA 4X/IP65

• Material: PC/PBT blend of resins

• Seals (2): Buna-N (NBR)
Maximum vibration:
1mm or 1g double amplitude @ 500 Hz

Wetted materials

• Sensor: PVC

• Union O-Rings: FPM or EPDM

Max. Pressure/Temperature Ratings

16 bar @ 0 °C, 3.7 bar @ 60 °C
(232 psi @ 32 °F, 54 psi @ 140 °F)
Operating temperature:
0 to 65°C (32 to 149°F)
Storage temperature:

-15 to 80 °C (5 to 176 °F)
Relative humidity:
0 to 95%, non-condensing

See Temperature and Pressure graphs for
more information.

Shipping Weights:

• 3-7000-5X: 1.87 lbs.

• 3-7000-6X: 0.88 lbs.

• 3-7001-5X: 1.65 lbs.

• 3-7001-6X: 0.88 lbs.

Standards and Approvals:

• CE

• Manufactured under ISO 9001:2000
for Quality and ISO 14001:2004 for
Environmental Management

Choosing

Products

Instrument

Multi-Pa-

rameter

Flow

pH/ORP

Conductivity/

Resistivity

Pressure, Level

Temperature,

Please refer to
Wiring, Installation
and Accessories
sections for more
information.

Electrical

Reverse polarity protection.

Frequency Output Model

• Power:

3.5 to 24 VDC, regulated, 1.5 mA max.

• Output:
Open-collector NPN transistor, 10 mA

max sink, 24 VDC max pull-up voltage,
0 to 300 Hz (normal), 50% duty cycle,
non-isolated

Current Output Model

• Power:
7 to 30 VDC, regulated, 20 mA max

Current loop (2-wire)

• Loop impedance:
300Ω maximum at 12 VDC
800Ω maximum at 24 VDC

Application Tips:

• Sensor can be mounted at any angle

• A minimum back pressure is required to
prevent cavitation within the sensor. See
Installation section for more information.

• Power supplies are available and sold
separately. See individual product page.

• Be sure to select the correct output signal,
frequency or current.

Products

Other

Installation

Wiring &

Reference

Technical

Temperature/

Pressure

Graphs

of Terms

Glossary

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63

Reference

Part No.

Index