Product Specifications

Compact Electromagnetic Flowsensor

FZ01-288H2

Model

1/6

VNRReliability
Creativity Service

1. Specifications
ModelVN05R

VN10R

VN20R

Nominal diameter

5mm

10mm

20mm

Accuracy guaranteed flow-rate
range

0.05 to 1 L/min

0.5 to 10 L/min

3.0 to 60 L/min

Maximum working flow-rate

3 L/min

25 L/min

100 L/min

Low flow cutoff

0.025 L/min

0.25 L/min

1.5 L/minAccuracy(at fluidtemperature
25C)

Frequency
pulse
Unit pulse

Repeat accuracy
Temperature characteristics
Conductivity characteristics±2.5% RD : 20 to 100% of the maximum accuracy guaranteed flow-rate±0.5% F.S.: 5 to 20% of the maximum accuracy guaranteed flow-rate±2.0% RD : 20 to 100% of the maximum accuracy guaranteed flow-rate±0.4% F.S.: 5 to 20% of the maximum accuracy guaranteed flow-rate±2.0% F.S.: 3σ under the following conditions(Output deviation per sec, response 2 sec, frequency pulse)±2.0% RD : 20 to 100% of the maximum accuracy guaranteed flow-rate±0.4% F.S.: 5 to 20% of the maximum accuracy guaranteed flow-rate±1.5% RD : 20 to 100% of the maximum accuracy guaranteed flow-rate±0.3% F.S.: 5 to 20% of the maximum accuracy guaranteed flow-rate

Fluid to be measured

Conductive fluid which does not corrode wetted parts (e.g., cold and warm water)

Fluid conductivity range

50μS/cm or higher

Fluid temperature range

0 to +60C (No freezing)

Working ambient-20 to +60C35 to 85% RH (No dew condensation)

temperature/humidity range

Storage ambient
temperature range-20 to +70CMaximum working pressure

1MPaPressure drop(at the accuracy guaranteedmaximum flow-rate)

20kPa or lessCommon pulse output
specifications
High-density
pulse *1
Unit pulse
Output
1*2

Alarm *3

Switch *4

Output2*2

Dutyratio:50%

NPN open collector pulse
Maximum load: 30V DC 20mA ON-time residual voltage: 1V or lessStandard 200.0Hz(Adjustable at factory from 20 to 400Hz in 0.1Hz steps)
Note: When ASI-100 is connected, select 200.0Hz for Output 1.
0.001L/P (standard)

0.01L/P (standard)

0.1L/P (standard)

Select from Normal Open (standard) and Normal Close.
Alarm can be set at factory for each of “Excitation Error/Memory Error/
Low power supply voltage/No water/Excessive Fluid Noise/
Reverse Flow/Excessive Flow.”
Select from Normal Open (standard) and Normal Close.
Level judgment value: Adjustable at factory from 0 to 100% of the maximum
accuracy guaranteed flow rate in 1% steps

Unit pulse

Same as Output 1

Alarm *3

Same as Output 1
Note: When ASI-100 is connected, select Alert for Output 2.

Switch *4

Same as Output 1

Product Specifications

FZ01-288H2

Compact Electromagnetic Flowsensor

Model2/6

VNR

Reliability
Creativity ServiceModel

VN05R

Response-abilityBasicspecifications

Adjustable at factory from 1 to 99 seconds in 1second steps.
Cable length: 500mm, 4-core AWG28, outer diameter Φ2.8, shielded
Coating is peeled off and core wires are twisted.

processingWiring

VN20R

63% response Dumping time: 2 seconds (standard)

Terminal

Cable

VN10R

Red: Power supply+ Blue: GND White: Output 1 Yellow: Output 2
Single LED on the flowsensor, bicolor LED(green/red)

LED display

Green: Indicates the flow rate by three blinking speeds
Red: Indicates the error status by the number of blinks
The position that the LED surface is parallel or perpendicularStandard installation position(from bottom to top) to the ground.
(No air shall be in the fluid)
Arrow direction indicated on the productFlow direction
Pipe connection

R 1/4

R 1/2

R1

Protection grade

Indoor specification (equivalent to IP64)

Power supply

It is recommended to supply power from an isolated power supply and connect

12 to 24V DC ±10%
a separate power supply to each VN.
Current consumption
Weight

100mA DC or lessApproximately 190g

Approximately 190g

Approximately 290g

Top andbottomcovers

Mainmaterials

(Circledparts arewetted.) *５PPS
OthersMain bodycasing
ElectrodeGroundingring
O-ringPPS
SUS316L
SUS316FKM
CE Marking product, UKCA Marking product, RoHS directive compliant

Product Specifications

FZ01-288H2

Compact Electromagnetic Flowsensor

Model

3/6

VNR

Reliability
Creativity Service

2. Selection Sheet* Check  of each item to select or enter a value as necessary.
 VN05RModel
Low flow cutoff(In case flow-rate is lower than thespecified flow-rate, it is calculated as 0.)

 VN20R Yes (standard): 2.5% F.S. No
For “Yes”: VN05R: 0.025 L/min, VN10R: 0.25 L/min, VN20R: 1.5 L/min

Dumping(Enter the number ofseconds.)
Outputformat

 VN10R

Choose from 1 to 99 seconds (standard: 2 seconds)
Enter a value in 1-second steps.
(In case the product is to be used for batch processing,consult us separately.)secNormal Open (N.O.: Standard) Normal Close (N.C.)
Frequency pulse*1Hz(In case of use with
ASI-100,frequency pulse of200Hz is recommended.)

20.0 to 400.0Hz (Standard: 200.0Hz)
The frequency is selectableby 0.1Hz steps.

•VN05R: 0.001L/P(Standard) 0.01L/P 0.1L/P•VN10R: 0.01L/P(Standard) 0.1L/P
1L/P•VN20R: 0.1L/P(Standard)
1L/P
10L/PFor each alert judgment item, the state is normal if nothing isdetected and abnormal if any item is detected. Choose items
to trigger alerts in 2-1. Alarm Judgment Items below.
* In case Alarm is selected for Output 1, choose other than
Alarm for Output 2.

Unit pulse

Alarm*3

Level 1 judgment value
Level 1 judgment value Hysteresis
Level 2 judgment value
Level 2 judgment value Hysteresis

Switch level judgment*2Output 1

Outputtype*4

Contact output 1
Contact output 2

Choose oneof theoptions.
* Standard isfrequency
pulse.

Abnormal condition
Normal condition

This is to judge as normal condition when flow-rate is not
more than the set Level1 Judgment Value and as abnormal
condition when flow-rate is above the set Level 1 Judgment
Value. → Enter the level judgment values in 2-2.Level
Judgment Values.
Level 1 judgment value
Level 1 judgment value Hysteresis
Level 2 judgment value
Level 2 judgment value Hysteresis

Switchwindow
judgment*4Contact output 1or contact output 2Abnormal condition
Normal condition

This is to detect whether flow-rate is within the set upper limit
and the set lower limit or falls outside of the range, and tojudge as normal condition when flow-rate is not more than
the set upper limit and not less than the set and as abnormal
condition when flow-rate falls outside of the range. Setting of
the upper limit value and the lower limit value can be witheither of Level 1 Judgment Value and Level 2Judgment
Value. → Enter the level judgment values in 2-2.Level
Judgment Values.

Product Specifications

FZ01-288H2

Compact Electromagnetic Flowsensor

Model

4/6

VNR

Reliability
Creativity ServiceOutput

Output 2*2

Normal Open (N.O.: Standard) Normal Close (N.C.)

formatformat

Alarm*3

formatKind offormatformat
output*In case of use with ASI-100, Alarm is

Choose one ofthe options.
* Standard isAlert.

Same as Output 1

recommended.

Unit pulse

Same as Output 1

 Switch level judgment*4

Same as Output 1

Switch window judgment*4

Same as Output 12-1. Alert Judgment Items *6
Excitation Error detection"Output” only for both LED operation and switch output

Memory Error detection“Output” only for both LED operation and switch output

Low power voltage
detection“Output” only for both LED operation and switch output
LED operation

Active (Standard) Inactive

Switch output

Active (Standard) Inactive

Excessive fluid noise

LED operation

Active (Standard) Inactive

detection

Switch output

Active (Standard) Inactive

LED operation

Active (Standard) Inactive

Switch output

Active (Standard) Inactive

LED operation

Active (Standard) Inactive

No-water detection

Reverse-flow detection

Active (Standard) Inactive

Excessive flow-ratedetection

Switch output(When a flow-rate which is in between the upper limit
flow-rate of the accuracy guaranteed flow-rate range
and maximum working flow-rate is always used,)

2-2.Level Judgment Values*7

Level 1 judgment value%

Level 2 judgment value%

Hysteresis%

0 to 100% (Standard: 50%)
This is selectable by 1% steps.
0 to 100% (Standard: 30%)
 This is selectable by 1% steps.
0 to 9% (Standard: 3%)
 This is selectable by 1% steps.

Product Specifications

FZ01-288H2

Compact Electromagnetic Flowsensor

Reliability
Creativity ServiceModel

5/6

VNR

*1: Indicates the frequency at the maximum accuracy guaranteed flow rate.
*2: Output 1 and 2 values and selected items are fixed at factory and cannot be changed after installation.
*3: Alarm can be selected for either Output 1 or Output 2 only.
*4: Window judgment is calculated and output by using the set values for Output 1 and 2*5: Material symbols

PPS
FKM . .
SUS316L
SUS316L

Polyphenylene Sulfide
Fluoro Rubber
StainlessStainless*6: Description of Alert items
Excitation Error detection ·················

When current does not flow through the excitation coil correctly

Memory Error detection ····················

When a memory data error has occurred

Low power voltage detection··············

When the power supply voltage has gone lower

No-water detection ··························

When the flowsensor's measuring pipe portion is not fulfilled with water.

Excessive fluid noise detection ···········

When correct fluid measurement is not possible because electricity is
flowing through the fluid or bubble is contained in the fluid

Reverse-flow detection ·····················

When the fluid is flowing in the direction opposite to the arrow on theflowsensor

Excessive flow-rate detection ·············

When the flow rate exceeds 125% of the upper limit of the accuracy
guaranteed flow rate

*7: The maximum flow-rate of the accuracy guaranteed flow-rate range is 100%.
3.Wiring technique
Flowsensor
Red：Power supply＋

Sensor power supply＋(12-24V DC)

White：Out put1
←ＩｓＲOpen collector input＋

Yellow：Out put2
←Ｉｓ

(Power supply voltage：30V DC or less)

ＲSensor power supply＋

Blue：GND

and Open collector input－Please set the sink current for open collector output of output 1and output 2 to 20mA or less.
(Recommended resistor is 10kΩ～20ｋΩ.)V(Power supply voltage：Volt)
Is(Output sink current：mA)＝

R(Pull-up resistor：kΩ)≦20mA

Product Specifications

Reliability
Creativity Service

Compact Electromagnetic Flowsensor

FZ01-288H2

Model

6/6

VNR

4.Precautions for handling
Before handling the product, be sure to read the handling manual carefully. And, use the product correctly.
4-1.Working environment, fluid to be measured(1)Ensure that the wetted parts' materials have corrosion resistance against fluid to be measured.
(2)The product cannot be used for non-conducting fluid such as purified water, oil, etc.
(3)Flowing of electric current in the fluid to be measured may leads to incorrect operation.
(4)Keep the product away from a strong magnetic field or a source of electric noise.
(5)The product is not explosion-proof specification. Do not use the product in an explosive atmosphere such as
flammable gas, etc.
(6)Avoid installation at a place exposed to direct sunlight and/or rain (Indoor specification).
4-2.Precautions for piping(1)In case of parallel installation of plural pieces of the product, to decrease wavering of flow detection byelectromagnetic interference, distance each of them 20cm or more.
(2)No air shall be in the fluid to be measured. The measurement accuracy is to be affected.
(1)Do not install the product at a place where air accumulation can easily occur (e.g. upstream side of a falling
pipe. Also, before start measurement, remove air sufficiently.
(3)For the installation position of the flowsensor, to avoid influence of air bubbles, dust, dirt, etc., the orientationthat makes the flow direction be from bottom to top is recommended.
(4)Devices such as a flow-rate adjusting valve, etc., which disturb flow shall be installed in the downstream of theflowsensor.
(5)Avoid installing the product where it is exposed to excessive pressure, such as water hummer, etc.
(6)In case foreign substances, oil, etc., exist in the piping, install the flowsensor after cleaning inside of the pipe.
(7)Make sure to align the flow direction of the fluid with the flow direction indicated by the arrow on the main body.
(8)Around the place of installation, provide enough space for maintenance.
4-3.Wiring(1)For a power supply and a remote counter, it is recommended to electrically isolate them from others.