Product Specifications

Momentary/Accumulated Flow Meter

FZ01-362B1

1/6

NW□□-□TN-□

Model

NW□□-□TP-□

Reliability
Creativity Service

1-1. Individual Specifications (NW05･NW10)NW Series

NW05-NTN

NW05-PTN

NW05-TTN

NW10-NTN

NW10-PTN NW10-PTN-4 NW10-TTN

NW-P Series(with pulse output)

NW05-NTP

NW05-PTP

NW05-TTP

NW10-NTP

NW10-PTP NW10-PTP-4 NW10-TTP

Nominal diameter
Accuracy guaranteed
flow-rate range
Momentary
display
Precision
Accumulated
display5mm

10mm

0.3 to 3.0 L/min

1.5 to 20 L/min±2%RS±0.05L/min（At the standard installation position）

1.0 to 10 L/min±2%RS±0.2L/min（At the standard installation position）±2%RS（At the standard installation position）
For water and chemicalfluidsNote) Please select suitable

Fluid to be measured

For water andhot watermodel by checking whether
the wetted parts mainmaterials have resistance

For water and chemical fluids
For water and Note) Please select suitable model by checking
hot waterwhether the wetted parts main materials haveresistance against your liquid to be measured.

against your liquid to bemeasured.

Fluid viscosity range

0.5 to 1.5 mPa・s (equivalent to water)

Fluid temperature range
Ambient temperature /humidity
Working ambient

0 to +60ºC (Should not get frozen.)
0 to +60ºC 35 to 85%RH (No dew condensation)

temperature/humidity

0 to +60ºC 35 to 85%RH (no dewing)range
Maximum working
pressure
Pressure drop
(at the accuracy guaranteed

1MPa (at the fluid temperature of 20ºC)
12 kPa or less

20 kPa or lessmaximum flow-rate)

Momentary
Accumulated

LCD

Pulse output unit
(NW-P series only)

10mL/P (standard)

1L/P (standard)

Minimum deltaunit

0.05L/min

0.2L/min

Display and unit

00.00L/min

000.0L/min

Display and unit

000000.00L

0000000.0L

15 kPa or less

Product Specifications

Reliability

Momentary/Accumulated Flow Meter

FZ01-362B1

2/6NW□□-□TN-□

ModelNW□□-□TP-□

Creativity Service

2 sec (Standard setting)
The setting can be changed by
the button operation: Selectable from 0.5, 1, 2, 3, 4, and 5sec

MiscellaneousFunction

Accumulated display zero clear (reset) function
Trip accumulation function
Instantaneous flow-rate value hold function
Function to change decimal points of accumulated
flow volume and instantaneous flow-rate vale

Rotation range

Approximately 270° to the left and 50° to theright from the original position
Do not rotate the display further
than the position where it's rotation is stopped by the stopper.

Standard installation
position＊１

Position so that the face of LCD faces up against the ground

Flow direction

Direction of the arrow indicated on the product

Pipe connection

R 1/2

Protection gradeindoor specifications（Equivalent to IP X4）

Power supply

Lithium battery(Battery life: Approximately 4 years, battery not replaceable)

LCDRefresh interval

WeightMajor material *3CasingApproximately 280g
Modified PPO

Vane wheel

SUS304O-ringNBR

OthersETFE

CF-POM

Pivot

MagnetPP

Approximately 250g
Modified PPO

ETFE
PA

ETFE
FKM

Sa-Co *2

PPETFE

CF-POM
SUS304

ETFE
PA

NBR

ETFE
FKM

Ba-Fe

CE Marking product , RoHS directive corresponded

Sa-Co *2

Product Specifications

Reliability

FZ01-362B1

Momentary/Accumulated Flow Meter

Model

3/6

NW□□-□TN-□
NW□□-□TP-□

Creativity Service

1-2. Individual Specifications (NW20)
NW Series

NW20-NTN

NW20-PTN

NW20-PTN-4

NW-P Series(with pulse output)

NW20-NTP

NW20-PTP

NW20-PTP-4

Nominal diameter

20mm

Accuracy guaranteed
flow-rate range

3.0 to 60 L/min

Precision

Momentary display±2%RS±0.5L/min （At the standard installation position）

Accumulated display

Fluid to be measured

For water and hot water±2%RS（At the standard installation position）
For water and chemical fluidsNote) Please select suitable model by checking whether the wettedparts main materials have resistance against your liquid to bemeasured.

Fluid viscosity range

0.5 to 1.5 mPa・s (equivalent to water)

Fluid temperature range

0 to +60ºC (Should not get frozen.)Ambient temperature /humidity

0 to +60ºC 35 to 85%RH (no dew condensation)

Working ambient
temperature/humidity

0 to +60ºC 35 to 85%RH (no dewing)range

Pressure loss
(at the accuracy guaranteedmaximum flow-rate)

60 kPa or lessPulse output unit
(NW-P series only)

1L/P (standard)

Accumulated

Momentary

1MPa (at the fluid temperature of 20ºC)

LCD

Maximum working pressure

Minimum delta unit

0.5L/min

Display and unit

000.0L/min

Display and unit

0000000.0L

Product Specifications

Momentary/Accumulated Flow Meter

Reliability

FZ01-362B14/6NW□□-□TN-□

ModelNW□□-□TP-□

Creativity ServiceLCD

Refresh interval

2 sec (Standard setting)
The setting can be changed bythe button operation: Selectable from 0.5, 1, 2, 3, 4, and 5sec

Miscellaneous
Function

Accumulated display zero clear (reset) function
Trip accumulation function
Instantaneous flow-rate value hold function
Function to change decimal points of accumulated
flow volume and instantaneous flow-rate vale

Rotation range

Approximately 270° to the left and 50° to theright from the original position
Do not rotate the display further
than the position where it's rotation is stopped by the stopper.

Standard installation
Position＊１

Position so that the face of LCD faces up against the ground

Flow direction

Direction of the arrow indicated on the product

Pipe connection

R 3/4

Protection gradeindoor specifications（Equivalent to IP X4）

Power supply

Lithium battery(Battery life: Approximately 4 years, battery not replaceable)

WeightApproximately 500g

CasingMainmaterialsof wettedparts*3

Modified PPO

PP

Vane wheel

CF-POM

Pivot
O-ringMagnetOthers

SUS304
NBR

PAFKM

Ba-Fe
CE Marking product ， RoHS directive corresponded

Sa-Co *2

Product Specifications

ReliabilityMomentary/Accumulated Flow Meter

FZ01-362B1

Model

5/6

NW□□-□TN-□
NW□□-□TP-□

Creativity Service

3. Specifications Common to Products with Pulse Output
NPN Open drain pulse(Equivalent to open collector pulse)
Output signal
formatPulse output unitchange function

Signal cable

Pulse ON time: Approximately 5msec (one-shot pulse)
Maximum applicable voltage: 30V DC
Output capacity ON-time resistance: 150Ω or less, OFF-time resistance: 100kΩ or more
(Input current Residual voltage should be 1.5V or lower at 10mA or lower.)
Pulse is outputted at increasing of thevalue of the designated number of digits
Designation of the number of digits can be changed by
the button operation
Lead wire length: Approximately 500mm 2-core AWG26 Outer diameterφ2.4
White: +/Black: -*1: The standard installation position means the position that the LCD display faces upward against the ground.
Accuracy is not guaranteed for installation positions other than the standard installation position.
Also, note that durability of the product is deteriorated in case of installation positions other than the standard installation
position because amount of wearing is to be increased.

*2: This magnet is not in touch with liquid.
*3: Material symbols
Modified PPO*Glass fiber reinforced NORYL (Polyphenylene oxide)PP

Polypropylene

ETFE

Fluororesin (Ethylene-tetrafluoro ethylene)

CF-POM

Carbon fiber reinforced Polyacetal or Polyoxymethylene

PA

Polyamide

SUS304

Stainless

FKM

Fluoro Rubber

NBR

Nitrile Rubber (Acrylonitrile-Butadiene Rubber)

Sa-Co

Samarium-Cobalt

Ba-Fe

Barium-Ferrite

Product Specifications

Reliability

Momentary/Accumulated Flow Meter

FZ01-362B1

Model

6/6

NW□□-□TN-□
NW□□-□TP-□

Creativity Service

4. Precautions for handling
Before handling the product, be sure to read the handling manual carefully .And, use the product correctly.
4-1Working environment, fluid to be measured(1)Ensure that the wetted parts' materials have corrosion resistance against fluid to be measured.
(2) Keep the product away from a strong magnetic field or a source of electric noise.
(3)The product is not explosion-proof specification. Do not use the product in an explosive atmosphere such as
flammable gas, etc.
(4)In case flow in the pipe has pulsation, the measurement accuracy is to be affected. When feeding the fluid with a constantrate pump, etc., which causes pulsation of flow, cancel the pulsation using an accumulator, etc.
(5)Avoid installation at a place exposed to direct sunlight and/or rain (Indoor specification).
4-2.Precautions for piping(1)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.
(1)Also, before start measurement, remove air sufficiently.
(2)For the installation position, install the product in the standard installation position (The display faces upward against theground).
(3)Devices such as a flow-rate adjusting valve, etc., which disturb flow shall be installed in the downstream of the flowsensor.
(4)Avoid installing the product where it is exposed to excessive pressure, such as water hummer, etc.
(5)In case foreign substances, oil, etc., exist in the piping, install the flowsensor after cleaning inside of the pipe.
(6)Make sure to align the flow direction of the fluid with the flow direction indicated by the arrow on the main body.
(7)Provide straight pipe portion of 5D or more at the upstream and 3D or more at the downstream of the flowsensor.
(8)Around the place of installation, provide enough space for maintenance.