Grundfos Direct Sensors™net.grundfos.com/Appl/WebCAPS/Grundfosliterature-4362713.pdf · Multiflow sensors, standard (MFS and MFS QT) 26

GRUNDFOS DATA BOOKLET

Flow sensorsGrundfos Direct Sensors™

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Flow sensors

1. Product overview 3

2. Product introduction 4Vortex principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Construction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3. Vortex flow sensor, industry (VFI) 5General data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5VFI, 0.3 - 6 m3/h (1.3 - 26.4 gpm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6VFI, 0.6 - 12 m3/h (2.6 - 52.8 gpm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7VFI, 1.3 - 25 m3/h (5.7 - 110 gpm). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8VFI, 2-40 m3/h (8.8 - 176 gpm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9VFI, 3.2 - 64 m3/h (14-282 gpm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10VFI, 5.2 - 104 m3/h (23-458 gpm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11VFI, 8-160 m3/h (35-704 gpm). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12VFI, 12-240 m3/h (53-1057 gpm). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4. Vortex flow sensors, standard (VFS and VFS QT) 14General data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14VFS, 1-20 l/min (0.2 - 5.3 gpm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16VFS, 2-40 l/min (0.5 - 10.6 gpm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17VFS, 5-100 l/min (1.3 - 26 gpm). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18VFS, 10-200 l/min (2.6 - 53 gpm). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19VFS, 20-400 l/min (5.3 - 106 gpm). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20VFS QT, 1-12 l/min (0.2 - 3.2 gpm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21VFS QT, 1-15 l/min (0.2 - 3.9 gpm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22VFS QT, 2-40 l/min (0.5 - 10.6 gpm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23VFS QT, 5-100 l/min (1.3 - 26 gpm). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24VFS QT, 10-200 l/min (2.6 - 53 gpm). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

5. Multiflow sensors, standard (MFS and MFS QT) 26General data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26MFS, 1-20 l/min (0.2 - 5.3 gpm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27MFS, 2-40 l/min (0.5 - 10.6 gpm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28MFS, 5-100 l/min (1.3 - 26 gpm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29MFS, 10-200 l/min (2.6 - 53 gpm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30MFS, 20-400 l/min (5.3 - 106 gpm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31MFS QT, 1-15 l/min (0.2 - 3.9 gpm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32MFS QT, 2-40 l/min (0.5 - 10.6 gpm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33MFS QT, 5-100 l/min (1.3 - 26 gpm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34MFS QT, 10-200 l/min (2.6 - 53 gpm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

6. Product range 36VFI sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36VFS and VFS QT sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

7. Accessories 38Sensor interface, converter unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38M12 cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38Snap-on cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

8. Appendix 39Pressure drop curves. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39Installation of the VFI sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

9. Grundfos Product Center 42

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Flow sensors 1

1. Product overview

Variant Description Technical data

VFI

Vortex flow sensor, industry• all stainless steel• Grundfos flanges or fittings.

Flow range:System pressure:System temperature:Signal:Power supply:Enclosure class:

0.3 - 240 m3/h (1.3 - 1057 gpm)Maximum 28 bar (406 psi)-30 to +120 °C (-22 to +248 °F)4-20 mA (2-wire)12.5 - 30 VDCIP67

VFS

Vortex flow sensor, standard• combined flow and temperature

measurement• composite flow pipe.

Flow range:Temperature range:System pressure:System temperature:Signal:Power supply:Enclosure class:

1.3 - 400 l/min (5.7 - 1761 gpm)0-100 °C (32-212 °F)Maximum 16 bar (232 psi)0-100 °C (32-212 °F)2 x 0.5 - 3.5 VDC (4-wire)5 VDC (PELV)IP44

VFS QTVortex flow sensor, standard QT• combined flow and temperature

measurement• stainless-steel pipe with composite

insert.

Flow range:Temperature range:System pressure:System temperature:Signal:Power supply:Enclosure class:

1-200 l/min (4.4 - 881 gpm)0-100 °C (32-212 °F)Maximum 16 bar (232 psi)0-100 °C (32-212 °F)2 x 0.5 - 3.5 VDC (4-wire)5 VDC (PELV)IP44

MFS Multiflow sensor, standard• combined flow, pressure and

temperature measurement• output: two analog signals or proprietary

digital bus for three signals (flow, temperature and pressure)

• composite flow pipe.

Flow range:Temperature range: Pressure range:System pressure:System temperature:Signal:Power supply:Enclosure class:

1.3 - 400 l/min (5.7 - 1761 gpm)0-100 °C (32-212 °F)0-10 bar (0-145 psi)Maximum 16 bar (232 psi)0-100 °C (32-212 °F)Digital or analog communication, 2 x 0.5 - 3.5 VDC (4-wire)5 VDC (PELV)IP44

MFS QT Multiflow sensor, standard QT• combined flow, pressure and

temperature measurement• output: two analog signals or proprietary

digital bus for three signals (flow, temperature and pressure)

• stainless-steel pipe with composite insert.

Flow range:Temperature range: Pressure range:System pressure:System temperature:Signal:

Power supply:Enclosure class:

1-200 l/min (15.8 - 3170 gpm)0-120 °C (32-248 °F)0-10 bar (0-145 psi)Maximum 16 bar (232 psi)0-120 °C (32-248 °F)Digital or analog communication, 2 x 0.5 - 3.5 or 4.1 VDC (4-wire)5 VDC (PELV)IP44

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Flow sensors2

2. Product introduction

This data booklet gives an overview of the Grundfos vortex flow sensor range and related products.

Fig. 1 Grundfos vortex flow sensors

The Grundfos vortex flow sensor range comprises flow measurement systems as well as combined flow and temperature measurement systems (two-in-one) designed for harsh aqueous environments.

Vortex principleThe flow measurement is based on the vortex principle. The system elements include a flow pipe with an integrated bluff body and a differential pressure sensor.

Fig. 2 Bluff body inside a vortex flow sensor

When a bluff body is placed inside a pipe, a series of vortices will be generated on either side of the bluff body. These vortices propagate downstream, giving rise to periodic pressure variations which can be detected by the pressure sensor. The frequency of the pressure variations is proportional to the volume flow through the pipe.

Fig. 3 Operating principle

The bluff body is designed to optimise the pulse strength of the pressure variations at the position of the differential pressure sensor.

Flow ranges are determined by the pipe diameter and the signal processing parameters. The differential pressure sensor key elements are a bulk micromachined silicon chip and a microprocessor-based signal-conditioning circuit, both on the same PCB. The conditioning circuit converts the pressure reading to a signal proportional to the flow.

ConstructionThe bluff body is either integrated in the composite flow pipe, or supplied as a separate composite or stainless steel part to be inserted in the flow pipe.

The square chip membrane warps due to the pressure difference. This is registered as a change of resistance in the strain gauges of a Wheatstone bridge. The pressure and temperature sensitive area, the membrane region, is coated on both sides by an extremely corrosion- and diffusion-resistive thin film (Silicoat®). The coating makes the chip environmentally robust. The liquid-free zone is sealed by an O-ring.

MaterialThe Grundfos vortex flow sensors are available in three material variants, suitable for different liquids:

• EPDM O-rings: Suitable for water; drinking-water approved.

• FKM O-rings: Suitable for oily liquids and water in heating applications.

• EPDM sealing cap with FKM O-rings: Suitable for water in heating applications with a high volume of calcium and magnetite.

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Flow sensors 3

3. Vortex flow sensor, industry (VFI)

General data

Fig. 4 VFI sensor

Technical overviewThe VFI flow sensor from Grundfos Direct Sensors™ is designed for industrial applications. The sensor is based on the principle of vortex shedding behind a bluff body.

The VFI sensor is fully compatible with wet, aggressive liquids. The sensor is based on MEMS sensing technology in combination with the corrosion-resistant Silicoat® coating technology on the sensor chip.

This makes the VFI sensors very robust and ideal for pump integration and monitoring in harsh environments.

The sensor is supplied with a stainless steel flow pipe, available with flanges or in a threaded version.

Fig. 5 Bluff body in a VFI sensor

Applications• Pump control

• HVAC systems

• temperature control and chiller systems

• renewable energies such as heat pumps, solar thermals, fresh water and micro-CHP systems

• monitoring and control systems

• water treatment plants

• water utility and distribution systems

• HPC (High-Performance Computing) and IT cooling systems.

Features and benefits• Measurement principle with no movable parts,

resulting in no wear and tear

• MEMS technology

• direct contact with the liquid resulting in a fast response time

• plug and play for quick setup

• smart system solution with Grundfos pump controls

• compact and robust design

• compatible with aggressive liquids

• suitable for a wide temperature range

• suitable for a wide range of application.

Flow range

Approvals• WRAS

• KTW

• AS4020

• ACS.

Certificates

Electrical connections

Fig. 6 Electrical connections

Signal condition: 2-wire, loop-powered.

Power supply: 12.5 - 30 V, screened cable.

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Flow range

m3/h gpm

0.3 - 6 1.32 - 26.42

0.6 - 12 2.64 - 52.83

1.3 - 25 5.72 - 110.07

2-40 8.81 - 176.11

3.2 - 64 14.09 - 281.78

5.2 - 104 22.89 - 457.89

8-160 35.22 - 704.46

12-240 52.83 - 1056.69

CE C, CSA, US C-Tick EAC

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Wire colour Brown White Blue Black

I/OPower supply

Not usedFlow signal

4-20 mANot used

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Flow sensors3

VFI, 0.3 - 6 m3/h (1.3 - 26.4 gpm)

Fig. 7 VFI sensor with flanges and thread

Dimensions

Fig. 8 Dimensions, VFI with flanges

For flanges according to ANSI and JIS standards or for other pressure ranges, contact Grundfos Direct Sensors™.

Fig. 9 Dimensions, VFI with thread

Sensor output signals

Fig. 10 Flow response

Specifications

Install the VFI sensor with threaded ends by means of union nuts.

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A B C D ISO/DIN flange, DN 18 pipe

mm 200 18 120 140DN 25/32 PN 25/40

in 7.87 0.71 4.72 5.51

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mm 200 18 120G1 1/4"

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Measuring range 0.3 - 6 m3/h (1.32 to 26.42 gpm)

Accuracy (± 1 σ) in water,0-100 °C (32-212 °F)

± 1.5 % FS

Response time (63.2 %) Less than 1 s

Resolution 0.0075 m3/h (0.03 gpm)

System conditions and environment

Liquid types

Liquids compatible with wetted materialsKinematic viscosity less than or equal to 6

mm2/s (cSt)See appendix Pressure drop curves

Maximum system pressure

28 bar (406 psi)

Liquid temperature, operation

-30 to +120 °C (-22 to +248 °F), non-freezing

Liquid temperature, peak-30 to +120 °C (-22 to +248 °F),

non-freezing

Ambient temperature, operation

-25 to +60 °C (-13 to +140 °F)

Ambient temperature, peak

-55 to +70 °C (-67 to +158 °F)

Storage temperature -55 to +70 °C (-67 to +158 °F)

Humidity, relative 0-95 %, non-condensing

Electrical data

Power supply 12.5 - 30 VDC (± 5 %)

Output signals – Signal cut off

4-20 mA21 mA

Maximum power consumption

660 mW

Maximum load impedance

60 Ω at 12.5 VDC100 Ω at 13.3 VDC600 Ω at 24 VDC900 Ω at 30 VDC

Maximum cable length 30 m (98 ft)

Materials

Sensing element Silicon-based MEMS

O-ring EPDM or FKM

Housing Stainless steel 1.4404 (AISI 316 L)

Flow pipe Stainless steel 1.4408 (AISI 316)

Flange. no liquid contact Cast iron or stainless steel

Bluff body Stainless steel 1.4401 (AISI 316 L)

Wetted materialsCorrosion-resistant coating,

EPDM or FKM,Stainless steel 1.4401/04/08 (AISI 316 L)

Environmental standards

Enclosure class IP67, cable connected

Temperature cycling IEC 68-2-14

Vibration, non-destructive

20-2000 Hz, 10G, 4 h

Electromagnetic compatibility

EN 61326-1

Weight

With cast iron flanges 4.38 kg (9.66 lbs)

With stainless steel flanges

4.44 kg (9.79 lbs)

Without flange 1.39 kg (3.06 lbs)

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Flow sensors 3

VFI, 0.6 - 12 m3/h (2.6 - 52.8 gpm)

Dimensions






Specifications


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Flow


Accuracy (± 1 σ) in water, 0-100 °C (32-212 °F)

± 1.5 % FS




Liquid types



Max. system pressure 28 bar (406 psi)




non-freezing


-25 to +60 °C (-13 to +140 °F)


-55 to +70 °C (-67 to +158 °F)



Electrical data



4-20 mA21 mA


660 mW




Materials


O-ring EPDM or FKM



Flange, no liquid contact Cast iron or stainless steel







Vibration, non-destructive 20-2000 Hz, 10G, 4 h


EN 61326-1

Weight



4.58 kg (10.10 lbs)


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VFI, 1.3 - 25 m3/h (5.7 - 110 gpm)

Dimensions






Specifications


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A B C Thread size

mm 200 19 128G1 1/2"

in 7.87 0.75 5.04

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± 1.5 % FS

Response time Less than 1 s



Liquid types



Max. system pressure 28 bar (406 psi)




non-freezing


-25 to +60 °C (-13 to +140 °F)


-55 to +70 °C (-67 to +158 °F)



Electrical data



4-20 mA21 mA


660 mW




Materials


O-ring EPDM or FKM

Sensor housing Stainless steel 1.4404 (AISI 316 L)











EN 61326-1

Weight



4.53 kg (9.99 lbs)


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VFI, 2-40 m3/h (8.8 - 176 gpm)

Fig. 17 VFI 2-40 sensor

Dimensions





Specifications

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mm 200 18 131 150DN 40 PN 16/25/40

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Measuring range 2-40 m3/h (8.81 to 176.11 gpm)


± 1.5 % FS




Liquid types




28 bar (406 psi)




non-freezing


-25 to +60 °C (-13 to +140 °F)


-55 to +70 °C (-67 to +158 °F)



Electrical data



4-20 mA21 mA


660 mW




Materials


O-ring EPDM or FKM











20-2000 Hz, 10G, 4 h


EN 61326-1

Weight



6.45 kg (14.22 lbs)

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VFI, 3.2 - 64 m3/h (14-282 gpm)

Fig. 20 VFI sensor

Dimensions





Specifications

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mm 200 22 138 165DN 50 PN16/25/40

in 7.87 0.87 5.43 6.50

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Flow



± 1.5 % FS




Liquid types




28 bar (406 psi)




non-freezing


-25 to +60 °C (-13 to +140 °F)


-55 to +70 °C (-67 to +158 °F)



Electrical data



4-20 mA21 mA


660 mW




Materials


O-ring EPDM or FKM











20-2000 Hz, 10G, 4 h


EN 61326-1

Weight



5.94 kg (13.10 lbs)

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I)

Flow sensors 3

VFI, 5.2 - 104 m3/h (23-458 gpm)

Fig. 23 VFI sensor

Dimensions





Specifications

TM

04

71

47

17

10

TM

04

71

54

16

10


mm 200 25 145 185DN 65 PN 16/25/40

in 7.87 0.98 5.71 7.28

TM

06

09

51

13

16

0

Flow



± 1.5 % FS




Liquid types




28 bar (406 psi)




non-freezing


-25 to +60 °C (-13 to +140 °F)


-55 to +70 °C (-67 to +158 °F)



Electrical data



4-20 mA21 mA


660 mW




Materials


O-ring EPDM or FKM











20-2000 Hz, 10G, 4 h


EN 61326-1

Weight



9.90 kg (21.83 lbs)

11

Vo

rtex

flow

se

ns

or, in

du

stry

(VF

I)

12

Flow sensors3

VFI, 8-160 m3/h (35-704 gpm)

Fig. 26 VFI sensor

Dimensions





Specifications

TM

04

71

48

17

10

TM

04

71

54

16

10


mm 200 25 152 200DN 80 PN 16/25/40

in 7.87 0.98 5.98 7.87

TM

06

09

51

13

16

0

Flow



± 1.5 % FS




Liquid types




28 bar (406 psi)




non-freezing


-25 to +60 °C (-13 to +140 °F)


-55 to +70 °C (-67 to +158 °F)



Electrical data



4-20 mA21 mA


660 mW




Materials


O-ring EPDM or FKM





Wetted materialsCorrosion-resistant coating






20-2000 Hz, 10G, 4 h


EN 61326-1

Weight



16.00 kg (35.27 lbs)

Vo

rte

x f

low

se

ns

or,

in

du

str

y (

VF

I)

Flow sensors 3

VFI, 12-240 m3/h (53-1057 gpm)

Fig. 29 VFI sensor

Dimensions





Specifications

TM

04

71

49

17

10

TM

04

71

54

16

10


mm 250 25 163 235DN 100 PN 25/40

in 9.84 0.98 6.42 9.25

TM

06

09

51

13

16

0

Flow



± 1.5 % FS




Liquid types




28 bar (406 psi)




non-freezing


-25 to +60 °C (-13 to +140 °F)


-55 to +70 °C (-67 to +158 °F)



Electrical data



4-20 mA21 mA


660 mW




Materials


O-ring EPDM or FKM











20-2000 Hz, 10G, 4 h


EN 61326-1

Weight



14.00 kg (30.86 lbs)

13

Vo

rtex

flow

se

ns

ors

, sta

nd

ard

(VF

S a

nd

VF

S Q

T)

14

Flow sensors4

4. Vortex flow sensors, standard (VFS and VFS QT)

General data

Fig. 32 VFS and VFS QT sensors

Technical overviewThe VFS is a combined flow and temperature sensor (two-in-one) from Grundfos Direct Sensors™. The sensor is based on the principle of vortex shedding behind a bluff body.

The VFS sensor is fully compatible with wet, aggressive liquids. The sensor is based on MEMS sensing technology in combination with the corrosion-resistant Silicoat® coating technology on the sensor chip.

The sensor is supplied with a flow pipe.


• HVAC systems







Features and benefits• Measurement principle with no movable parts,

resulting in no wear and tear

• flow and temperature measurement in one sensor (two-in-one solution) for easy and cost-efficient installation

• MEMS technology







• suitable for a wide range of applications.

Flow range

Approvals• WRAS

• KTW

• AS4020

• ACS.

Certificates



Power supply requirements

• 5 VDC ± 5 %, PELV

• The sensor must be separated from hazardous live circuitry by double or reinforced insulation.

• Grounding of the sensor supply is required.

TM

05

47

45

24

12

Flow range

l/min gpm

1-12 0.26 - 3.17

1-15 0.26 - 3.96

1.3 - 20 0.34 - 5.28

2-40 0.53 - 10.57

5-100 1.32 - 26.42

10-200 2.64 - 52.83

20-400 5.28 - 105.67

CE C, CSA, US C-Tick EAC

TM

04

71

56

16

10

Pin configuration Colour

1 Temperature signal, 0.5 to 3.5 V relative to pin 3 Yellow

2 Flow signal, 0.5 to 3.5 V relative to pin 3 White

3 GND (0 V), PELV Green

4 Power supply, + 5 VDC Brown

��

V

V

4321

PE

Temperaturesignal

Flow signal

Electrical connector

Pin No

Pipe system

Vo

rte

x f

low

se

ns

ors

, s

tan

da

rd (

VF

S a

nd

VF

S Q

T)

Flow sensors 4

VFS sensors

Fig. 34 The VFS family

The VFS flow sensor consists of a composite flow pipe and a sensor fitted with cable.

The VFS flow sensor is available in 1-20, 2-40, 5-100, 10-200, 20-400 l/min versions.

VFS QT sensors

Fig. 35 The VFS QT family

The VFS QT flow sensor consists of a composite insert, a stainless steel flow pipe and a sensor fitted with cable.

The VFS QT flow sensor is available in 1-12, 1-15, 2-40, 5-100, 10-200 l/min versions.

Snap-on sensor

Fig. 36 Snap-on sensorT

M0

5 4

74

4 2

51

2T

M0

5 4

74

3 2

51

2

TM

05

47

50

25

12

- T

M0

5 4

75

2 2

51

2

15

Vo

rtex

flow

se

ns

ors

, sta

nd

ard

(VF

S a

nd

VF

S Q

T)

16

Flow sensors4

VFS, 1-20 l/min (0.2 - 5.3 gpm)

Fig. 37 VFS, 1-20 l/min

Dimensions

Fig. 38 Dimensions, VFS, 1-20 l/min, without adapter

Fig. 39 Dimensions, VFS, 1-20 l/min, with adapters



Fig. 41 Temperature response

Specifications

TM

05

47

51

25

12

TM

06

34

20

03

14

TM

06

34

25

03

14

A B C D E F

mm 82 ∅19.8 65 36 153.6ISO 228 - G 1/2 A

in 3.23 ∅0.78 2.56 1.42 6.05 1/2" NPT

TM

06

33

55

52

14

[V]

Q max

Flo

w o

utp

ut

sig

na

l

TM

06

33

54

52

14

Flow

Measuring range 1.3-20 l/min (0.34 to 5.3 gpm)


± 1.5 % FS


Resolution 0.1 l/min (0.03 gpm)

Temperature

Measuring range 0-100 °C (32-212 °F)

Accuracy (± 1 σ), 25-80 °C (77-176 °F)

± 1 K

Accuracy (± 1 σ),0-100 °C (32-212 °F)

± 2 K

Response time (63.2 % at 50 % FS flow)

250 ms

Resolution 0.35 K


Liquid typesLiquids compatible with wetted materials

Kinematic viscosity less than 2 mm2/s (cSt)


Water: 0-100 °C (32-212 °F)

Liquid temperature, peak-25 °C (-13 °F), non-freezing

120 °C (248 °F) for 5 minutes, up to 3 weeks in sensor lifetime


-25 to +60 °C (-13 to -140 °F)

Ambient temperature, peak -55 to +90 °C (-67 to 194 °F)


Maximum system pressure 16 bar (232 psi)

Electrical data

Power supply5 VDC (± 5 %), PELV

Grounding of sensor supply required

Output signals Ratiometric

Flow signal0.5 - 3.5 V (zero at 0.35 V or 1 l/min at

0.5 V)

Temperature signal 0.5 - 3.5 V

Power consumption Less than 50 mW

Load impedance Greater than 10 kΩMaximum cable length 3 m (9.10 ft)

Materials


SealingEPDM O-rings, FKM O-rings or EPDM

sealing cap with FKM O-rings

Housing Composite (PPS, PA66)

Flow pipe PPA 40-GF


EPDM or FKM, PPS, PPA 40-GF






EN 61326-1

[V]

T max

Tem

pe

ratu

re o

utp

ut

sig

na

l

Vo

rte

x f

low

se

ns

ors

, s

tan

da

rd (

VF

S a

nd

VF

S Q

T)

Flow sensors 4

VFS, 2-40 l/min (0.5 - 10.6 gpm)


Dimensions






Specifications

TM

05

47

49

25

12

TM

06

34

21

03

14

TM

06

34

26

03

14

A B C D E F

mm 88 ∅22.8 66 38 157.4ISO 228/1 -

G 3/4 A

in 3.46 ∅0.19 2.60 1.50 6.20 3/4" NPT

TM

06

33

55

52

14

[V]

Q max

Flo

w o

utp

ut

sig

na

l

TM

06

33

54

52

14

Flow

Measuring range 2-40 l/min (0.5 - 10.6 gpm)


± 1.5 % FS



Temperature


Accuracy (± 1 σ), 25-80 °C (77-176 °F)

± 1 K

Accuracy (± 1 σ), 0-100 °C (32-212 °F)

± 2 K


250 ms

Resolution 0.35 K


Liquid types

Liquids compatible with wetted materials

Kinematic viscosity less than or equal to 2 mm2/s (cSt)

Liquid temperature, operation Water: 0-100 °C (32-212 °F)




-25 to +60 °C (-13 to +140 °F)

Ambient temperature, peak -55 to +90 °C (-67 to +194 °F)



Electrical data




Flow signal 0.5 - 3.5 V (zero at 0.35 V)




Materials


SealingEPDM-O-rings or FKM O-rings or

EPDM sealing cap with FKM O-rings


Flow pipe PPA 40-GF







Electromagnetic compatibility EN 61326-1

[V]

T max

Tem

pe

ratu

re o

utp

ut

sig

na

l

17

Vo

rtex

flow

se

ns

ors

, sta

nd

ard

(VF

S a

nd

VF

S Q

T)

18

Flow sensors4

VFS, 5-100 l/min (1.3 - 26 gpm)


Dimensions






Specifications

TM

05

47

48

25

12

TM

06

34

22

03

14

TM

06

34

27

03

14

A B C D E F

mm 129 ISO 228/1 - G 1 A

65 - 223ISO 7/1-Rc

3/4

in 5.08 2.56 - 8.78 3/4" NPT

TM

06

33

55

52

14

[V]

Q max

Flo

w o

utp

ut

sig

na

l

TM

06

33

54

52

14

Flow

Measuring range 5-100 l/min (1.3 to 26.4 gpm)


± 1.5 % FS



Temperature


Accuracy (± 1 σ), 25-80 °C (77-176 °F)

± 1 K

Accuracy (± 1 σ), 0-100 °C (32-212 °F)

± 2 K


250 ms

Resolution 0.35 K


Liquid types







-25 to +60 °C (-13 to +140 °F)




Electrical data








Materials


SealingEPDM O-rings, FKM O-rings or



Flow pipe PPA 40-GF








[V]

T max

Tem

pe

ratu

re o

utp

ut

sig

na

l

Vo

rte

x f

low

se

ns

ors

, s

tan

da

rd (

VF

S a

nd

VF

S Q

T)

Flow sensors 4

VFS, 10-200 l/min (2.6 - 53 gpm)


Dimensions






Specifications

TM

05

47

47

25

12

TM

06

34

23

03

14

TM

06

34

28

03

14

A B C D E F

mm 137.5 ISO 228/1 - G 1 1/4 A

73 - 252 ISO 7/1-R 1

in 5.41 2.87 - 9.92 1" NPT

TM

06

33

55

52

14

[V]

Q max

Flo

w o

utp

ut

sig

na

l

TM

06

33

54

52

14

Flow


Accuracy (± 1 σ) in water, 0-100 °C (32-212 °F) ± 1.5 % FS



Temperature


Accuracy (± 1 σ), 25-80 °C (77-176 °F)

± 1 K

Accuracy (± 1 σ), 0-100 °C (32-212 °F)

± 2 K

Response time (63.2 %) 250 ms

Resolution 0.35 K


Liquid types







-25 to +60 °C (-13 to +140 °F)




Electrical data








Materials


SealingEPDM-O-rings or FKM O-rings or



Flow pipe PPA 40-GF








[V]

T max

Tem

pe

ratu

re o

utp

ut

sig

na

l

19

Vo

rtex

flow

se

ns

ors

, sta

nd

ard

(VF

S a

nd

VF

S Q

T)

20

Flow sensors4

VFS, 20-400 l/min (5.3 - 106 gpm)


Dimensions


Fig. 59 Dimensions, VFS 20-400 l/min, with adapters




Specifications

TM

05

47

46

25

12

TM

06

34

24

03

14

TM

06

34

29

03

14

A B C D E F

mm 180 ISO 228/1 - G 1 1/2 A

80 - 293ISO 7/1- R

1 1/4

in 7.09 3.15 - 11.54 1 1/4" NPT

TM

06

33

55

52

14

[V]

Q max

Flo

w o

utp

ut

sig

na

l

TM

06

33

54

52

14

Flow



± 1.5 % FS

Response time (63.2 %) Less than 1.0 s


Temperature


Accuracy (± 1 σ), 25-80 °C (77-176 °F)

± 1 K

Accuracy (± 1 σ), 0-100 °C (32-212 °F)

± 2 K


250 ms

Resolution 0.35 K


Liquid types







-25 to +60 °C (-13 to +140 °F)




Electrical data

Power supply5 VDC (± 5 %). We recommend grounding of the sensor supply

(PELV).






Materials





Flow pipe PPA 40-GF








[V]

T max

Tem

pe

ratu

re o

utp

ut

sig

na

l

Vo

rte

x f

low

se

ns

ors

, s

tan

da

rd (

VF

S a

nd

VF

S Q

T)

Flow sensors 4

VFS QT, 1-12 l/min (0.2 - 3.2 gpm)

Fig. 62 VFS QT, 1-12 l/min

Dimensions

Fig. 63 Dimensions, VFS QT, 1-12 l/min, with threads

Fig. 64 Dimensions, VFS QT, 1-12 l/min, with oval flange




Specifications

TM

05

47

42

25

12

TM

05

46

71

25

12

A B C

mm 110ISO 228/1 - G3/4 A

58.8

in 4.33 2.31

TM

05

46

70

25

12

A B C D

mm 110 ISO 228/1 - G3/4 A

60.5 29.8

in 4.33 2.38 1.17

TM

06

33

60

52

14

C

A

2 x B

C

A

B

D

00

5

0

5

0

5

0

0.

0.

1.

1.

2.

2.

3.

3.5

4.0

Q max

[V]

Flo

w o

utp

ut

sig

na

l

TM

06

33

54

52

14

Flow



± 1.5 % FS



Temperature


Accuracy (± 1 σ), 25-80 °C (77-176 °F)

± 1 K

Accuracy (± 1 σ), 0-100 °C (32-212 °F)

± 2 K


250 ms

Resolution 0.35 K


Liquid types







-25 to +60 °C (-13 to +140 °F)




Electrical data








Materials





Flow pipe 1.4408

Insert PPA 40 GF


EPDM or FKM, PPS, PPA 40-GF, 1.4408






[V]

T max

Tem

pe

ratu

re o

utp

ut

sig

na

l

21

Vo

rtex

flow

se

ns

ors

, sta

nd

ard

(VF

S a

nd

VF

S Q

T)

22

Flow sensors4

VFS QT, 1-15 l/min (0.2 - 3.9 gpm)


Dimensions






SpecificationsTM

05

47

41

25

12

TM

05

46

71

25

12

A B C

mm 110ISO 228/1 - G3/4 A

58.8

in 4.33 2.31

TM

05

46

70

25

12

A B C D

mm 110 ISO 228/1 - G3/4 A

60.5 29.8

in 4.33 2.38 1.17

TM

06

33

60

52

14

C

A

2 x B

C

A

B

D

00

5

0

5

0

5

0

0.

0.

1.

1.

2.

2.

3.

3.5

4.0

Q max

[V]

Flo

w o

utp

ut

sig

na

l

TM

06

33

54

52

14

Flow



± 1.5 % FS

Response time (63.2 %) Less than1 s


Temperature


Accuracy (± 1 σ), 25-80 °C (77-176 °F)

± 1 K

Accuracy (± 1 σ), 0-100 °C (32-212 °F)

± 2 K


250 ms

Resolution 0.35 K


Liquid types







-25 to +60 °C (-13 to +140 °F)




Electrical data








Materials





Flow pipe 1.4408

Insert PPA 40 GF


EPDM or FKM,PPS, PPA 40-GF, 1.4408






[V]

T max

Tem

pe

ratu

re o

utp

ut

sig

na

l

Vo

rte

x f

low

se

ns

ors

, s

tan

da

rd (

VF

S a

nd

VF

S Q

T)

Flow sensors 4

VFS QT, 2-40 l/min (0.5 - 10.6 gpm)


Dimensions






Specifications

TM

05

47

41

25

12

TM

05

46

71

25

12

A B C

mm 110ISO 228/1 - G3/4 A

58.8

in 4.33 2.31

TM

05

46

70

25

12

A B C D

mm 110 ISO 228/1 - G3/4 A

60.5 29.8

in 4.33 2.38 1.17

TM

06

33

55

52

14

C

A

2 x B

C

A

B

D

[V]

Q max

Flo

w o

utp

ut

sig

na

l

TM

06

33

54

52

14

Flow



± 1.5 % FS



Temperature


Accuracy (± 1 σ), 25-80 °C (77-176 °F)

± 1 K

Accuracy (± 1 σ), 0-100 °C (32-212 °F)

± 2 K


250 ms

Resolution 0.35 K


Liquid types







-25 to +60 °C (-13 to +140 °F)




Electrical data








Materials





Flow pipe 1.4408

Insert PPA 40 GF


EPDM or FKM, PPS, PPA 40-GF, 1.4408






[V]

T max

Tem

pe

ratu

re o

utp

ut

sig

na

l

23

Vo

rtex

flow

se

ns

ors

, sta

nd

ard

(VF

S a

nd

VF

S Q

T)

24

Flow sensors4

VFS QT, 5-100 l/min (1.3 - 26 gpm)


Dimensions





Specifications

TM

05

47

40

25

12

TM

05

46

72

25

12

A B C

mm 129ISO 228/1 - G1A

66.5

in 5.08 2.62

TM

06

33

55

52

14

TM

06

33

54

52

14

C

A

2 x B

[V]

Q max

Flo

w o

utp

ut

sig

na

l

[V]

T max

Tem

pe

ratu

re o

utp

ut

sig

na

l

Flow


Accuracy (± 1 σ), 0-100 °C (32-212 °F)

± 1.5 % FS



Temperature



± 1 K

Accuracy (± 1 σ), 0-100 °C (32-212 °F)

± 2 K


250 ms

Resolution 0.35 K


Liquid types







-25 to +60 °C (-13 to +140 °F)




Electrical data

Power supply5 VDC (± 5 %). We recommend grounding of the sensor supply

(PELV).






Materials




Flow pipe 1.4408

Insert PPA 40-GF








Vo

rte

x f

low

se

ns

ors

, s

tan

da

rd (

VF

S a

nd

VF

S Q

T)

Flow sensors 4

VFS QT, 10-200 l/min (2.6 - 53 gpm)


Dimensions





Specifications

TM

05

47

39

25

12

TM

05

46

73

25

12

A B C

mm 137.5ISO 228/1 - G1 1/4 A

74.1

in 5.41 2.92

TM

06

33

55

52

14

TM

06

33

54

52

14

C

A

2 x B

[V]

Q max

Flo

w o

utp

ut

sig

na

l

[V]

T max

Tem

pe

ratu

re o

utp

ut

sig

na

l

Flow



± 1.5 % FS

Response time (63.2 %) Less than 1.0 s


Temperature


Accuracy (± 1 σ), 25-80 °C (77-176 °F)

± 1 K

Accuracy (± 1 σ), 0-100 °C (32-212 °F)

± 2 K

Response time(63.2 % at 50 % FS flow)

250 ms

Resolution 0.35 K


Liquid types







-25 to +60 °C (-13 to +140 °F)




Electrical data








Materials





Insert PPA 40-GF








25

Mu

ltiflow

se

ns

ors

, sta

nd

ard

(MF

S a

nd

MF

S Q

T)

26

Flow sensors5

5. Multiflow sensors, standard (MFS and MFS QT)

General data

Fig. 85 MFS and MFS QT, 2-40 l/min

Technical overviewThe MFS is a combined flow, pressure and temperature sensor (three-in-one) from Grundfos Direct Sensors™. The sensor is based on the principle of vortex shedding behind a bluff body.

The MFS sensor is designed for high-volume production and fully compatible with wet, aggressive liquids.

The sensor is based on MEMS sensing technology in combination with a unique packaging concept using corrosion-resistant coating on the MEMS sensor chip. This makes the sensor very robust and ideal for high-volume OEM (Original Equipment Manufacturer) applications.


• HVAC systems







Features and benefits• Flow, pressure and temperature measurement in

one sensor (three-in-one solution) for easy and cost-efficient installation

• Measurement principle with no movable parts, resulting in no wear and tear

• self-configuring digital or analog output

• MEMS technology







• suitable for a wide range of applications.

Approvals• WRAS

• KTW

• ACS.

Certificates



Power supply requirements

• 5 VDC ± 5 %, PELV

• maximum 10 mV ripple, 50 Hz

• minimum output current, 25 mA

• separated from hazardous live circuitry by double or reinforced insulation

• grounding of sensor supply is required.

DirectivesThe Grundfos vortex flow sensors are in conformity with these council directives on the approximation of the laws of the EC member states:

• Low Voltage Directive (2006/95/EC)

– Standards used: EN 61010-1:2001

• EMC Directive (2004/108/EC)

– Standards used: EN 61326-1:2006 and 61326-2-3:2006

The Grundfos vortex flow sensors fall under Article 3, section 3, of the Pressure Equipment Directive 97/23/EC (PED) and as such not required to be CE-marked.

TM

05

47

52

24

12

- T

M0

5 4

74

1 2

41

2

CE C, CSA, US EAC

TM

04

71

56

16

10

Pin configurationAnalog signal

Pin configurationDigital signal

Colour

1 Analog signal 1 Rx Yellow

2 Analog signal 2 Tx White

3 GND (0 V), PELV GND (0 V), PELV Green

4 Power supply, + 5 VDC Power supply, + 5 VDC Brown

��

V

V

4321

PE

4321

PE

Analog signal 1

Analog signal 2

Electrical connector

Pin No

Pipe system

Analog signal Digital signal

Mu

ltif

low

se

ns

ors

, s

tan

da

rd (

MF

S a

nd

MF

S Q

T)

Flow sensors 5

MFS, 1-20 l/min (0.2 - 5.3 gpm)

Fig. 87 MFS, 1-20 l/min

Dimensions

Fig. 88 Dimensions, MFS, 1-20 l/min, without adapter

Fig. 89 Dimensions, MFS, 1-20 l/min, with adapters



Fig. 91 Pressure and temperature response

Specifications

TM

05

47

51

25

12

TM

06

34

20

03

14

TM

06

34

25

03

14

A B C D E F

mm 82 ∅19.8 65 36 153.6ISO 228 - G 1/2 A

in 3.23 ∅0.78 2.56 1.42 6.05 1/2" NPT

TM

06

33

55

52

14

TM

06

65

60

17

16

[V]

Q max

Flo

w o

utp

ut

sig

na

l

[V]

T max T PeakP max

0.00

0.51.01.52.02.53.03.54.04.5

Pre

ssu

re a

nd

te

mp

era

ture

o

utp

ut

sig

na

l

Flow

Measuring range 1.3 - 20 l/min (0.34 to 5.3 gpm)

Accuracy (± 1 σ) in water0-120 °C (32-248 °F)

± 1 % FS



Pressure

Measuring range 0-10 bar (0-145 psi)

Accuracy (± 1 σ), 25-80 °C (77-176 °F)

± 1.0 % FS

Accuracy (± 1 σ), 0-100 °C (32-212 °F)

± 1.5 % FS

Response time for sensor electronic

250 ms

Resolution 0.6 mbar (0.009 psi)

Temperature

Measuring range0-120 °C (32-248 °F).

See system temperature, operation or peak.

Accuracy (± 1 σ), 15-90 °C (59-194 °F)

± 0.5 K

Accuracy (± 1 σ), 0-100 °C (32-212 °F)

± 1 K


250 ms

Resolution 0.008 K


Liquids

Liquids, compatible with wetted materials


System temperature, operation 0-100 °C (32-212 °F)

System temperature, peak-25 °C (-13 °F), non-freezing



-25 to +60 °C (-13 to +140 °F)




Electrical data



Digital output signals Grundfos open data protocol

Analog output signals, only two signals possible

0.5 - 3.5 V for flow or pressure 0.5 - 4.1 V for temperature

Power consumption Approximately 75 mW

Load impedance Greater than 10 K

Materials


Sealing EPDM O-ring or FKM O-ring


Flow pipe PPA 40-GF

Insert


EPDM or FKMPPS, PPA 40-GF






27

Mu

ltiflow

se

ns

ors

, sta

nd

ard

(MF

S a

nd

MF

S Q

T)

28

Flow sensors5

MFS, 2-40 l/min (0.5 - 10.6 gpm)


Dimensions


Fig. 94 Dimensions, MFS, 2-40 l/min, with adapter




Specifications

TM

05

47

49

25

12

TM

06

34

21

03

14

TM

06

34

26

03

14

A B C D E F

mm 88 ∅22.8 66 38 157.4 ISO 228/1 -G 3/4 A

in 3.46 ∅0.19 2.60 1.50 6.20 3/4" NPT

TM

06

33

55

52

14

TM

06

65

60

17

16

[V]

Q max

Flo

w o

utp

ut

sig

na

l

[V]

T max T PeakP max

0.00

0.51.01.52.02.53.03.54.04.5

Pre

ssu

re a

nd

te

mp

era

ture

o

utp

ut

sig

na

l

Flow



± 1 % FS



Pressure


Accuracy (± 1 σ), 25-80 °C (77-176 °F)

± 1.0 % FS

Accuracy (±1 σ), 0-100 °C (32-212 °F)

± 1.5 % FS


250 ms


Temperature


See system temperature, operation or peak.

Accuracy (±1 σ), 15-90 °C (59-194 °F)

± 0.5 K

Accuracy (±1 σ), 0-100 °C (32-212 °F)

± 1 K


250 ms

Resolution 0.006 K


Liquids







-25 to +60 °C (-13 to +140 °F)




Electrical data





0.5 - 3.5 V for flow or pressure0.5 - 4.1 V for temperature


Load impedance Greater than 10 k

Materials




Flow pipe insert PPA 40-GF








Mu

ltif

low

se

ns

ors

, s

tan

da

rd (

MF

S a

nd

MF

S Q

T)

Flow sensors 5

MFS, 5-100 l/min (1.3 - 26 gpm)


Dimensions


Fig. 99 Dimensions, MFS, 5-100 l/min, with adapters


Fig. 100Flow response

Fig. 101Pressure and temperature response

Specifications

TM

05

47

48

25

12

TM

06

34

22

03

14

TM

06

34

27

03

14

A B C D E F

mm 129 ISO 228/1 - G 1 A

65 - 223ISO 7/1-Rc

3/4

in 5.08 2.56 - 8.78 3/4" NPT

TM

06

33

55

52

14

TM

06

65

60

17

16

[V]

Q max

Flo

w o

utp

ut

sig

na

l

[V]

T max T PeakP max

0.00

0.51.01.52.02.53.03.54.04.5

Pre

ssu

re a

nd

te

mp

era

ture

o

utp

ut

sig

na

l

Flow

Measuring range 5-100 l/min (1.3 - 26 gpm)


± 1 % FS



Pressure


Accuracy (± 1 σ), 25-80 °C (77-176 °F)

± 1.0 % FS

Accuracy (± 1 σ), 0-100 °C (32-212 °F)

± 1.5 % FS


250 ms


Temperature

Measuring range0-120 °C (32-248 °F). See system

temperature, operation or peak

Accuracy (± 1 σ), 15-90 °C (59-194 °F)

± 0.5 K

Accuracy (± 1 σ), 0-100 °C (32-212 °F)

± 1 K


250 ms

Resolution 0.006 K


Liquid types





120 °C (248 °F) for 5 minutes, up to 3 weeks in sensor life time


-25 to +60 °C (-13 to +140 °F)




Electrical data








Materials












29

Mu

ltiflow

se

ns

ors

, sta

nd

ard

(MF

S a

nd

MF

S Q

T)

30

Flow sensors5

MFS, 10-200 l/min (2.6 - 53 gpm)

Fig. 102MFS, 10-200 l/min

Dimensions

Fig. 103Dimensions, MFS, 10-200 l/min, without adapter

Fig. 104Dimensions, MFS, 10-200 l/min, with adapters




Specifications

TM

05

47

47

25

12

TM

06

34

23

03

14

TM

06

34

28

03

14

A B C D E F

mm 137.5 ISO 228/1 - G 1 1/4 A

73 - 252 ISO 7/1-R 1

in 5.41 2.87 - 9.92 1" NPT

TM

06

33

55

52

14

TM

06

65

60

17

16

[V]

Q max

Flo

w o

utp

ut

sig

na

l

[V]

T max T PeakP max

0.00

0.51.01.52.02.53.03.54.04.5

Pre

ssu

re a

nd

te

mp

era

ture

o

utp

ut

sig

na

l

Flow



± 1 % FS



Pressure


Accuracy (± 1 σ), 25-80 °C (77-176 °F)

± 1.0 % FS

Accuracy (± 1 σ), 0-100 °C (32-212 °F)

± 1,5 % FS


250 ms


Temperature

Measuring range0-120 °C (32-248 °F). See system temperature, operation or peak.

Accuracy (± 1 σ), 15-90 °C (59-194 °F)

± 0.5 K

Accuracy (± 1 σ), 0-100 °C (32-212 °F)

± 1 K


250 ms

Resolution 0.006 K


Liquid types





120 °C (248 °F) for 5 minutes, up to 3 weeks in sensor life time


-25 to +60 °C (-13 to +140 °F)




Electrical data








Materials












Mu

ltif

low

se

ns

ors

, s

tan

da

rd (

MF

S a

nd

MF

S Q

T)

Flow sensors 5

MFS, 20-400 l/min (5.3 - 106 gpm)

Fig. 107MFS, 20-400 l/min

Dimensions

Fig. 108Dimensions, MFS, 20-400 l/min, without adapter

Fig. 109Dimensions, MFS, 20-400 l/min, with adapters




Specifications

TM

05

47

46

25

12

TM

06

34

24

03

14

TM

06

34

29

03

14

A B C D E F

mm 180 ISO 228/1 - G 1 1/2 A

80 - 293 ISO 7/1- R 1 1/4

in 7.09 3.15 - 11.54 1 1/4" NPT

TM

06

33

60

52

14

TM

06

65

60

17

16

00

5

0

5

0

5

0

0.

0.

1.

1.

2.

2.

3.

3.5

4.0

Q max

[V]

Flo

w o

utp

ut

sig

na

l

[V]

T max T PeakP max

0.00

0.51.01.52.02.53.03.54.04.5

Pre

ssu

re a

nd

te

mp

era

ture

o

utp

ut

sig

na

l

Flow


Accuracy (± 1 σ), in water0-120 °C (32-248 °F)

± 1 % FS



Pressure


Accuracy (± 1 σ), 25-80 °C (77-176 °F)

± 1.0 % FS

Accuracy (± 1 σ), 0-100 °C (32-212 °F)

± 1,5 % FS


250 ms


Temperature


See system temperature, operation or peak

Accuracy (± 1 σ), 15-90 °C (59-194 °F)

± 0.5 K

Accuracy (± 1 σ), 0-100 °C (32-212 °F)

± 1 K


250 ms

Resolution 0.006 K


Liquid types






Ambient temperature, operation -25 to +60 °C (-13 to +140 °F)




Electrical data





0.5 - 3.5 V for flow or pressure 0.5 - 4.1 V for temperature



Materials












31

Mu

ltiflow

se

ns

ors

, sta

nd

ard

(MF

S a

nd

MF

S Q

T)

32

Flow sensors5

MFS QT, 1-15 l/min (0.2 - 3.9 gpm)

Fig. 112MFS QT, 1-15 l/min

Dimensions

Fig. 113Dimensions, MFS QT, 1-15 l/min, with threads

Fig. 114Dimensions, MFS QT, 1-15 l/min, with oval flange




Specifications

TM

05

47

41

25

12

TM

05

46

71

25

12

A B C

mm 110ISO 228/1 - G3/4 A

58.8

in 4.33 2.31

TM

05

46

70

25

12

A B C D

mm 110 ISO 228/1 - G3/4 A

60.5 29.8

in 4.33 2.38 1.17

TM

06

33

60

52

14

TM

06

65

61

17

16

C

A

2 x B

C

A

B

D

00

5

0

5

0

5

0

0.

0.

1.

1.

2.

2.

3.

3.5

4.0

Q max

[V]

Flo

w o

utp

ut

sig

na

l

[V]

T maxP max0.0

0

0.51.01.52.02.53.03.54.04.5

Pre

ssu

re a

nd

te

mp

era

ture

o

utp

ut

sig

na

lFlow


Accuracy (± 1 σ), in water0-120 °C (32-248 °F)

± 1 % FS



Pressure

Measuring range0-10 bar (0-145 psi).

See maximum system pressure.

Accuracy (± 1 σ), 25-80 °C (77-176 °F)

± 1.0 % FS

Accuracy (± 1 σ), 0-100 °C (32-212 °F)

± 1,5 % FS


250 ms


Temperature


Accuracy (± 1 σ), 15-90 °C (59-194 °F)

± 0.5 K

Accuracy (± 1 σ), 0-100 °C (32-212 °F)

± 1 K


250 ms

Resolution 0.006 K


Liquid types





120 °C (248 °F)


-25 to +60 °C (-13 to +140 °F)



Maximum system pressure16 bar at 100 °C (232 psi at 212 °F)8 bar at 120 °C (116 psi at 248 °F)

Electrical data








Materials




Flow pipe Stainless steel AISI 315 EN 1.4408

Insert PPA 40 GF


EPDM or FKMPPS, PPA 40-GF, 1.4408






Mu

ltif

low

se

ns

ors

, s

tan

da

rd (

MF

S a

nd

MF

S Q

T)

Flow sensors 5

MFS QT, 2-40 l/min (0.5 - 10.6 gpm)


Dimensions


Fig. 119Dimensions, MFS QT, 2-40 l/min, with oval flange




Specifications

TM

05

47

41

25

12

TM

05

46

71

25

12

A B C

mm 110ISO 228/1 - G3/4 A

58.8

in 4.33 2.31

TM

05

46

70

25

12

A B C D

mm 110 ISO 228/1 - G3/4 A

60.5 29.8

in 4.33 2.38 1.17

TM

06

33

60

52

14

TM

06

65

61

17

16

C

A

2 x B

C

A

B

D

00

5

0

5

0

5

0

0.

0.

1.

1.

2.

2.

3.

3.5

4.0

Q max

[V]

Flo

w o

utp

ut

sig

na

l

[V]

T maxP max0.0

0

0.51.01.52.02.53.03.54.04.5

Pre

ssu

re a

nd

te

mp

era

ture

o

utp

ut

sig

na

lFlow



± 1 % FS



Pressure


See maximum system pressure

Accuracy (± 1 σ), 25-80 °C (77-176 °F)

± 1.0 % FS

Accuracy (± 1 σ), 0-100 °C (32-212 °F)

± 1,5 % FS

Response time for sensor electronics

250 ms


Temperature


Accuracy (± 1 σ), 15-90 °C (59-194 °F)

± 0.5 K

Accuracy (± 1 σ), 0-100 °C (32-212 °F)

± 1 K


250 ms

Resolution 0.006 K


Liquid types





120 °C (-248 °F)

Ambient temperature, operation -25 to +60 °C (-13 to +140 °F)



Maximum system pressure16 bar at 100 °C (232 psi at 212 °F) 8 bar at 120 °C (116 psi at 248 °F)

Electrical data








Materials





Insert PPA 40 GF








33

Mu

ltiflow

se

ns

ors

, sta

nd

ard

(MF

S a

nd

MF

S Q

T)

34

Flow sensors5

MFS QT, 5-100 l/min (1.3 - 26 gpm)


Dimensions





Specifications

TM

05

47

40

25

12

TM

05

46

72

25

12

A B C

mm 129ISO 228/1 - G1A

66.5

in 5.08 2.62

TM

06

33

60

52

14

TM

06

65

61

17

16

C

A

2 x B

00

5

0

5

0

5

0

0.

0.

1.

1.

2.

2.

3.

3.5

4.0

Q max

[V]

Flo

w o

utp

ut

sig

na

l

[V]

T maxP max0.0

0

0.51.01.52.02.53.03.54.04.5

Pre

ssu

re a

nd

te

mp

era

ture

o

utp

ut

sig

na

l

Flow



± 1 % FS



Pressure



Accuracy (± 1 σ), 25-80 °C (77-176 °F)

± 1.0 % FS

Accuracy (± 1 σ), 0-100 °C (32-212 °F)

± 1,5 % FS


250 ms


Temperature


Accuracy (± 1 σ), 15-90 °C (59-194 °F)

± 0.5 K

Accuracy (± 1 σ), 0-100 °C (32-212 °F)

± 1 K


250 ms

Resolution 0.006 K


Liquid types





120 °C (-248 °F)


-25 to +60 °C (-13 to +140 °F)




Electrical data








Materials





Insert PPA 40 GF








Mu

ltif

low

se

ns

ors

, s

tan

da

rd (

MF

S a

nd

MF

S Q

T)

Flow sensors 5

MFS QT, 10-200 l/min (2.6 - 53 gpm)


Dimensions





Specifications

TM

05

47

39

25

12

TM

05

46

73

25

12

A B C

mm 137.5ISO 228/1 - G1 1/4 A

74.1

in 5.41 2.92

TM

06

33

60

52

14

TM

06

65

61

17

16

C

A

2 x B

00

5

0

5

0

5

0

0.

0.

1.

1.

2.

2.

3.

3.5

4.0

Q max

[V]

Flo

w o

utp

ut

sig

na

l

[V]

T maxP max0.0

0

0.51.01.52.02.53.03.54.04.5

Pre

ssu

re a

nd

te

mp

era

ture

o

utp

ut

sig

na

l

Flow



± 1 % FS



Pressure

Measuring range0-10 bar (0-145 psi)


Accuracy (± 1 σ), 25-80 °C (77-176 °F)

± 1.0 % FS

Accuracy (± 1 σ), 0-100 °C (32-212 °F)

± 1,5 % FS


250 ms


Temperature


Accuracy (± 1 σ), 15-90 °C (59-194 °F)

± 0.5 K

Accuracy (± 1 σ), 0-100 °C (32-212 °F)

± 1 K


250 ms

Resolution 0.006 K


Liquid types





120 °C (-248 °F)


-25 to +60 °C (-13 to +140 °F)




Electrical data








Materials




Flow pipe Stainless steel AISI 315, EN 1.4408

Insert PPA 40 GF








35

Pro

du

ct ra

ng

e

36

Flow sensors6

6. Product range

VFI sensor

Scope of delivery

• Flow pipe with sensor

• flanges, only for flange versions

• fittings and union nuts for threaded versions

• 5 m (16.4 ft) cable with free cable end

• quick guide.

Complete product Flow range Flange size

O-ring Connection type

EPDM FKMCast iron

flangeStainless steel

flangeThread

VFI/--0.3-6m/1/C/M5.00-X/EG6/SG/30F/AC-1

0.3 - 6 m3/h1.32 - 26.4 gpm

DN 25/32ANSI 1 1/4"

● ●

VFI/--0.3-6m/1/C/M5.00-X/VG6/SG/30F/AC-1 ● ●

VFI/--0.3-6m/1/C/M5.00-X/EG6/SS/30F/AC-1 ● ●

VFI/--0.3-6m/1/C/M5.00-X/VG6/SS/30F/AC-1 ● ●

VFI/--0.3-6m/1/C/M5.00-X/EG6/SS/07P/AC-1 ● ●

VFI/--0.3-6m/1/C/M5.00-X/VG6/SS/07P/AC-1 ● ●

VFI/-0.6-12m/1/C/M5.00-X/EG6/SG/30F/AC-1

0.6 - 12 m3/h2.64 - 52.8 gpm

DN 25/32ANSI 1 1/4"

● ●

VFI/-0.6-12m/1/C/M5.00-X/VG6/SG/30F/AC-1 ● ●

VFI/-0.6-12m/1/C/M5.00-X/EG6/SS/30F/AC-1 ● ●

VFI/-0.6-12m/1/C/M5.00-X/VG6/SS/30F/AC-1 ● ●

VFI/-0.6-12m/1/C/M5.00-X/EG6/SS/07P/AC-1 ● ●

VFI/-0.6-12m/1/C/M5.00-X/VG6/SS/07P/AC-1 ● ●

VFI/-1.3-25m/1/C/M5.00-X/EG6/SG/30F/AC-1

1.3 - 25 m3/h5.72 - 110.1 gpm

DN 25/32ANSI 1 1/4"

● ●

VFI/-1.3-25m/1/C/M5.00-X/VG6/SG/30F/AC-1 ● ●

VFI/-1.3-25m/1/C/M5.00-X/EG6/SS/30F/AC-1 ● ●

VFI/-1.3-25m/1/C/M5.00-X/VG6/SS/30F/AC-1 ● ●

VFI/-1.3-25m/1/C/M5.00-X/EG6/SS/09P/AC-1 ● ●

VFI/-1.3-25m/1/C/M5.00-X/VG6/SS/09P/AC-1 ● ●

VFI/---2-40m/1/C/M5.00-X/EG6/SG/31F/AC-1

2-40 m3/h8.81 - 176.1 gpm

DN 40ANSI 1 1/2"

● ●

VFI/---2-40m/1/C/M5.00-X/VG6/SG/31F/AC-1 ● ●

VFI/---2-40m/1/C/M5.00-X/EG6/SS/31F/AC-1 ● ●

VFI/---2-40m/1/C/M5.00-X/VG6/SS/31F/AC-1 ● ●

VFI/-3.2-64m/1/C/M5.00-X/EG6/SG/32F/AC-1

3.2 - 64 m3/h14.09 - 281.8 gpm

DN 50ANSI 2"

● ●

VFI/-3.2-64m/1/C/M5.00-X/VG6/SG/32F/AC-1 ● ●

VFI/-3.2-64m/1/C/M5.00-X/EG6/SS/32F/AC-1 ● ●

VFI/-3.2-64m/1/C/M5.00-X/VG6/SS/32F/AC-1 ● ●

VFI/5.2-104m/1/C/M5.00-X/EG6/SG/33F/AC-1

5.2 - 104 m3/h22.89 - 457.9 gpm

DN 65ANSI 2 1/2"

● ●

VFI/5.2-104m/1/C/M5.00-X/VG6/SG/33F/AC-1 ● ●

VFI/5.2-104m/1/C/M5.00-X/EG6/SS/33F/AC-1 ● ●

VFI/5.2-104m/1/C/M5.00-X/VG6/SS/33F/AC-1 ● ●

VFI/--8-160m/1/C/M5.00-X/EG6/SG/35F/AC-1

8-160 m3/h35.22 - 704.5 gpm

DN 80ANSI 3"

● ●

VFI/--8-160m/1/C/M5.00-X/VG6/SG/35F/AC-1 ● ●

VFI/--8-160m/1/C/M5.00-X/EG6/SS/35F/AC-1 ● ●

VFI/--8-160m/1/C/M5.00-X/VG6/SS/35F/AC-1 ● ●

VFI/-12-240m/1/C/M5.00-X/EG6/SG/42F/AC-1

12-240 m3/h52.83 - 1057 gpm

DN 100ANSI 4"

● ●

VFI/-12-240m/1/C/M5.00-X/VG6/SG/42F/AC-1 ● ●

VFI/-12-240m/1/C/M5.00-X/EG6/SS/42F/AC-1 ● ●

VFI/-12-240m/1/C/M5.00-X/VG6/SS/42F/AC-1 ● ●

Pro

du

ct

ran

ge

Flow sensors 6

VFS and VFS QT sensors

Scope of delivery

• Flow pipe with sensor

• composite flow pipe with brass adapter (only VFS)

• stainless steel flow pipe (only VFS QT)

• quick guide.

Complete product Flow rangeO-ring Flow pipe Connection type

EPDM FKM Composite Stainless steel Brass adapter Stainless steel

VF

S

VFS/---1-20l/1/D/S------/EG4/CB/03P/SW-1 1.3 - 20 l/min

● ● ISO 228-G1/2 A

VFS/---1-20l/1/D/S------/VG4/CB/03P/SW-1 ● ● ISO 228-G1/2 A

VFS/---2-40l/1/D/S------/EG4/CB/04P/SW-12-40 l/min

● ● ISO 228-G3/4 A

VFS/---2-40l/1/D/S------/VG4/CB/04P/SW-1 ● ● ISO 228-G3/4 A

VFS/--5-100l/1/D/S------/EG4/CB/04B/SW-15-100 l/min

● ● ISO 7/1 R 3/4

VFS/--5-100l/1/D/S------/VG4/CB/04B/SW-1 ● ● ISO 7/1 R 3/4

VFS/-10-200l/1/D/S------/EG4/CB/05B/SW-1 10-200 l/min

● ● ISO 7/1 R 1

VFS/-10-200l/1/D/S------/VG4/CB/05B/SW-1 ● ● ISO 7/1 R 1

VFS/-20-400l/1/D/S------/EG4/CB/07B/SD-1 20-400 l/min

● ● ISO 7/1 R 1 1/4

VFS/-20-400l/1/D/S------/VG4/CB/07B/SD-1 ● ● ISO 7/1 R 1 1/4

VF

S Q

T

VFS/---1-12l/1/D/S------/EG4/Q-/04P/SW-11-12 l/min

● ● ISO 228/1-G3/4 A

VFS/---1-12l/1/D/S------/VG4/Q-/04P/SW-1 ● ● ISO 228/1-G3/4 A

VFS/---1-15l/l/D/S------/EG4/Q-/04P/SW-11-15 l/min

● ● ISO 228/1-G3/4 A

VFS/---1-15l/l/D/S------/VG4/Q-/04P/SW-1 ● ● ISO 228/1-G3/4 A

VFS/---2-40l/1/D/S------/EG4/Q-/04P/SW-12-40 l/min

● ● ISO 228/1-G3/4 A

VFS/---2-40l/1/D/S------/VG4/Q-/04P/SW-1 ● ● ISO 228/1-G3/4 A

VFS/--5-100l/1/D/S------/EG4/Q-/05P/SW-15-100 l/min

● ● ISO 228/1-G1 A

VFS/--5-100l/1/D/S------/VG4/Q-/05P/SW-1 ● ● ISO 228/1-G1 A

VFS/-10-200l/1/D/S------/EG4/Q-/07P/SW-1 10-200 l/min

● ● ISO 228/1-G1 1/4 A

VFS/-10-200l/1/D/S------/VG4/Q-/07P/SW-1 ● ● ISO 228/1-G1 1/4 A

37

Ac

ce

ss

orie

s

38

Flow sensors7

7. Accessories

Sensor interface, converter unitThe SI Converter sensor interface from Grundfos Direct Sensors™ is an external power supply, signal amplifier and signal converter for Grundfos sensors, standard variants (VFS, RPS, DPS).

SI Converter has built-in precision resistors enabling the sensor to give 4-20 mA, 1-5 V and 2-10 V output signals.

SI Converter is designed for applications where sensors from the standard product range are used. The sensor interface delivers a 4-20 mA input signal to external controllers.

Fig. 130Sensor interface, SI Converter

Specifications

• Voltage range: 115-230 VAC ± 10 % or 24 VDC

• frequency: 50-60 Hz

• power consumption: Maximum 2.5 W

• ambient temperature: -20 to +50 °C (-4 to +122 °F)

• enclosure class: IP20.

M12 cableThe 4-wire screened cable with M12 connector in the sensor end and open end in the equipment end is available as an accessory. Use the cable for the industrial sensor series such as RPI, DPI and VFI.

Snap-on cableCable with snap-on connection in sensor end and different variants in the equipment end, such as open end, ferrules and various types of connectors.

Use the cable for the standard sensor series such as VFS, RPS and DPS.

The cable is available in various lengths, mainly 1.2 m and 2.9 m.

TM

04

48

82

22

09

Part

Sensor interface, SI Converter, IP20

Description Length

Cable, industryM2.000X

2 m (6.6 ft)

Cable, industryM5.000X

5 m (16.4 ft)

Description Length [mm]

Ferrules, 1.2 m 1,200

Ferrules, 2.9 m 2,900

MOLEX connector, 1.2 m 1,200

MOLEX connector, 2.9 m 2,900

Ap

pe

nd

ix

Flow sensors 8

8. Appendix

Pressure drop curves

VFI sensor

Selection of flow sensor to minimise pressure drop at 1 cSt

TM

06

65

36

17

16

159

0.002

0.001

0.003

0.004

0.005

0.006

0.008

0.01

0.02

0.03

0.04

0.05

0.06

0.08

0.1

0.2

0.3

0.4

0.5

0.6

∆p

[bar]

0.029

0.015

0.044

0.058

0.073

0.087

0.116

0.15

0.29

0.44

0.58

0.73

0.87

1.16

1.5

2.9

4.4

5.8

7.3

8.7

[psi]

0.3 0.4 0.6 0.8 1 1.2 1.5 2 3 4 5 6 8 10 12 15 20 30 40 50 60 80100 150 200 300

Q [gpm (US)]

Q [m3/h]

2.6 26.4 264.25.3 52.8 528.311 106 10577.9 79.3 792.513 16 21

Head loss:

DN

100

DN

80

DN

65DN

50

DN

40

DN

32D

N2

5

DN

18

39

Ap

pe

nd

ix

40

Flow sensors8

VFS sensor

Selection of flow sensor to minimise pressure drop at 1 cSt

TM

06

65

37

17

16

1

10

100

1000

0.1

0.1 1 10 100 1000

0.0145

0.1450

1.4504

14.5038

Δp [mbar] [psi]

Q [l/min]

0.0015

1 - 12 1 -

15 1 - 2

0

2 - 4

0

5 - 1

00

10 -

200

20 -

400

Ap

pe

nd

ix

Flow sensors 8

Installation of the VFI sensor

TM

05

23

06

24

16

min. 10 x D min. 5 x D

D

0 bar

min. 20 x D

D

min. 0,2 bar(2.9 PSI)

IP67

41

Gru

nd

fos

Pro

du

ct C

en

ter

42

Flow sensors9

9. Grundfos Product Center

Subject to alterations.

All the information you need in one place Downloads

Performance curves, technical specifications, pictures, dimensional drawings, motor curves, wiring diagrams, spare parts, service kits, 3D drawings, documents, system parts. The Product Center displays any recent and saved items - including complete projects - right on the main page.

On the product pages, you can download installation and operating instructions, data booklets, service instructions, etc. in PDF format.

SIZING enables you to size a pump based on entered data and selection choices.

Online search and sizing tool to help you make the right choice.

http://product-selection.grundfos.com

REPLACEMENT enables you to find a replacement product.Search results will include information on

• the lowest purchase price• the lowest energy consumption• the lowest total life cycle cost.

CATALOGUE gives you access to the Grundfos product catalogue.

LIQUIDS enables you to find pumps designed for aggressive, flammable or other special liquids.

43

GRUNDFOS A/S DK-8850 Bjerringbro . DenmarkTelephone: +45 87 50 14 00www.grundfos.com

97790189 1216

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Documents

Grundfos Direct Sensors™net.grundfos.com/Appl/WebCAPS/Grundfosliterature-4362713.pdf · Multiflow sensors, standard (MFS and MFS QT) 26