OF-WN/OF-WPMicrostream Sensor

OF-WN/OF-WP Photo

Feature

Instantaneous Flow-Rate·Integrating Flow Volume Flowmeter

Model OF-WN (Local display type) Model OF-WP (With pulse output)

・Built-in lithium batteries (No external power supply is required) ・Indications of both instantaneous flow-rate and integrating flow volume by only 1 flowmeter ・Revolving display unit (It can be fixed to a easy-to-read position) ・Simplified structure with the oval gears type measuring principle ・Measurement of various liquids ・Reset function for indications of Integrating Flow Volume (Total) and Integrating Flow Volume (Trip) ・Value holding function for Instantaneous Flow-Rate indication ・Pulse output function (Option)

High Cost-Performance

The MICROSTREAM Sensor was developed to meet the fluid engineering demands for a precise, easy-to-use flow-rate control and monitoring system that can be applied to a wide range of fields.

The MICRSTREAM Series meets the needs of vanguard R&D departments across the face of industry.

What’s more, if you have found micro FlowSensor instrumentation to be prohibitively expensive in the past, you will be amazed at the ease and economy with which the MICROSTREAM system can be adopted. The proliferation of micro computers has created an increased demand for reliable, and economical systems which are easy to operate. The MICROSTREAM Sensor for the control and monitoring of fluid flow-sensor has met this demand, and has revolutionized the fluid instrumentation industry in the process.

Applications

To control kerosene burner combustion for efficient fuel control To indicate the fuel consumption rate and ‘remaining fuel’ of internal combustion systems To control the flow for chemical feeder systems To measure the flow of liquid cosmetic products,etc.

Spec

Instantaneous flow-rateIntegrating flow volume flowmeter OF-WN Type OF05ZAWN OF10ZAWN
Instantaneous flow-rateIntegrating flow volume flowmeter (with pulse output) OF-WP Type OF05ZAWP OF10ZAWP
Flow-rate range (m3/h) Fluid viscosity 0.3 – 0.8mPa·S 0.085 – 0.85L/min 0.7 – 5L/min
0.8 – 2.0mPa·S 0.05 – 0.85L/min 0.35 – 5L/min
2.0 – 5.0mPa·S 0.017 – 0.85L/min 0.17 – 5L/min
5.0 – 200mPa·S 0.0085 – 0.85L/min 0.085 – 5L/min
Accuracy (*1) Flow-rate indication ±2%RS±0.007L/min ±2% RS±0.04L/min
Volume indication ±2%RS
Measurable fluids Various liquids Please select with reference to the following major materials of the liquid-touching materials
Major fluids Water, hot water, kerosene, heavy oil
Max. working pressure 0.5MPa (at the time of fluid temperature of 20°C)
Pressure drop Not more than 4kPa Not more than 10kPa
Fluid temperature range 0 to +60°C
Output signal (for OF-WP) Open drain output (Equivalent to open collector) Pulse width: Not less than 5ms Max. rating voltage: 30 VDC Output capacity: “ON resistance” Not more than 150Ω, “OFFresistance” Not less than 100kΩ (Remained voltage not more than 1.5V in case of input current not more than 10mA)
Pulse unit (for OF-WP) 10mL/p
Ambient temperature range 0 to +60°C 35 to 85%RH (Dew condensation must be avoided)
LCD Flow-rate Smallest Scale 0.007L/min 0.04L/min
Display digits 0.000L/min 00.00L/min
Volume Smallest Scale 0.001L 0.01L
Display digits 00000.000L 000000.00L
Power supply Built-in lithium battery (Battery life 4 years. Not replaceable.)
Structure IP64 equivalent, Indoor installation
Connection R1/4 R1/2
Meter Weight Approx. 240g Approx. 260g
Major materials of the liquid touching parts Casing PPS
Rotor PPS
O-ring NBR
Pivot SUS304

 

Instantaneous flow-rate Integrating flow volume flowmeter OF-WN Type OF05ZZWN OF10ZZWN
Instantaneous flow-rate Integrating flow volume flowmeter (with pulse output) OF-WP Type OF05ZZWP OF10ZZWP
Flow-rate range (m3/h) Fluid viscosity 0.3 – 0.8mPa·S 0.085 – 0.85L/min 0.7 – 5L/min
0.8 – 2.0mPa·S 0.05 – 0.85L/min 0.35 – 5L/min
2.0 – 5.0mPa·S 0.017 – 0.85L/min 0.17 – 5L/min
5.0 – 200mPa·S 0.0085 – 0.85L/min 0.085 – 5L/min
Accuracy (*1) Flow-rate indication ±2%RS±0.007L/min ±2% RS±0.04L/min
Volume indication ±2%RS
Measurable fluids Various liquids Please select with reference to the following major materials of the liquid-touching materials
Major fluids Water, hot water, kerosene, heavy oil
Max. working pressure 0.5MPa (at the time of fluid temperature of 20°C)
Pressure drop Not more than 4kPa Not more than 10kPa
Fluid temperature range 0 to +60°C
Output signal (for OF-WP) Open drain output (Equivalent to open collector) Pulse width: Not less than 5ms Max. rating voltage: 30 VDC Output capacity: “ON resistance” Not more than 150Ω, “OFFresistance” Not less than 100kΩ (Remained voltage not more than 1.5V in case of input current not more than 10mA)
Pulse unit (for OF-WP) 10mL/p
Ambient temperature range 0 to +60°C 35 to 85%RH (Dew condensation must be avoided)
LCD Flow-rate Smallest Scale 0.007L/min 0.04L/min
Display digits 0.000L/min 00.00L/min
Volume Smallest Scale 0.001L 0.01L
Display digits 00000.000L 000000.00L
Power supply Built-in lithium battery (Battery life 4 years. Not replaceable.)
Structure IP64 equivalent, Indoor installation
Connection R1/4 R1/2
Meter Weight Approx. 240g Approx. 260g
Major materials of the liquid touching parts Casing PPS
Rotor PPS
O-ring FKM
Pivot SiC

In case there is possibility that any particle is flown in the liquid to be measured, please install a filter of not less than 80 meshes at the inlet side of the flowmeter. Gasoline, Sodium hydroxide (Caustic soda), Hydrogen peroxide solution (Oxydol), and Hydrochloric acid are not applicable. *1: With the standard installation position.

Dimensions

External dimensions

Model OF05 OF10
A(mm) 80 90
B(mm) 8 8.5
C(mm) 25 24

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Standard installation position

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Materials – Abbreviations

PPS Polyphenylene Sulfide Resin
NBR Acrylonitrile-Butadiene Rubber
SUS304 Stainless Steel 304
FKM Fluoro Rubber
SiC Silicon Carbide Ceramic

PDF Download

OF-W Manual
OF-W Specifications

・Specifications are subject to change without notice.
Product Warranties