Mô tả
Feature
・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 vane wheel 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)
Model NW (Local display type) Model NW-P (With pulse output)
Enhanced basic functions, user friendliness and cost efficiency are the key points
ND series offers high accuracy measurement of not only cold and warm water but also pure water, chemical fluids, etc. It is light-weighted compact body and is compatible with various kinds of fluids with the carefully selected casing materials such as PP, ETFE, PPO, etc., and with the highly sensitive magnetic sensor of our own development. This series is therefore widely applicable for various flow measurements and its control and monitoring as well.
Flowsensor Applications
・To control of warm water temperature ・To constantly supply water and warm water ・To monitor coolant, etc. ・To proportionally inject chemical fluids ・To control pressure loss of filters
Specifications
| Instantaneous flow-rate· Integrating flow volume flowmeter NW Type | NW05-NTN | NW05-PTN | NW05-TTN | NW10-NTN | ||
|---|---|---|---|---|---|---|
| Instantaneous flow-rate· Integrating flow volume flowmeter (with pulse output) NW-P Type | NW05-NTP | NW05-PTP | NW05-TTP | NW10-NTP | ||
| Flow-rate range (m3/h) | 0.3 – 3L/min | 1.5 – 20L/min | ||||
| Accuracy | Flow-rate indication | ±2%RS±0.05L/min | ±2% RS±0.2L/min | |||
| Volume indication | ±2%RS (with the standard installation position) | |||||
| Measurable fluids | Various liquids (Please select with reference to the following major materials of the liquid-touching materials) | |||||
| Max. Working Pressure | 1MPa (at the time of fluid temperature of 20°C) | |||||
| Pressure Drop | Not more than 12kPa (At the time of 3L/min) | Not more than 20kPa (At the time of 20L/min) | ||||
| Fluid viscosity range | 0.5-1.5mPa・s | |||||
| Fluid temperature range | 0±60°C | |||||
| Ambient temperature range | 0±60°C 35-85%RH(Dew condensation must be avoided) | |||||
| Output signal (for NW-P) | 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 morethan 1.5V in case of input current not more than 10mA) | |||||
| Pulse unit (for NW-P) | 10mL/p | 1L/p | ||||
| LCD | Flow-rate | Smallest Scale | 0.05L/min | 0.2L/min | ||
| Display digits | 00.00L/min | 000.0L/min | ||||
| Volume | Display digits | 000000.00L | 0000000.0L | |||
| Power supply | Built-in lithium battery (Battery life 4 years. Not replaceable.) | |||||
| Measurable fluids | Refer to “MEASURABLE FLUID AND PARTS MATERIALS” | |||||
| Structure | IP64 equivalent, Indoor installation | |||||
| Connection | R1/2 | |||||
| Meter Weight | Approx. 280g | Approx. 250g | ||||
| Major materials of the liquid touching parts | Casing | Denatured PPO | PP | ETFE | Denatured PPO | |
| Vane wheel | POM | ETFE | POM | |||
| Pivot | SUS304 | PA | ETFE | SUS304 | ||
| O-ring | NBR | FKM | NBR | |||
| Magnet | Sa-Co *1 | Ba-Fe | ||||
| Instantaneous flow-rate· Integrating flow volume flowmeter NW Type | NW10-PTN | NW10-TTN | NW20-NTN | NW20-PTN | ||
|---|---|---|---|---|---|---|
| Instantaneous flow-rate· Integrating flow volume flowmeter (with pulse output) NW-P Type | NW10-PTP | NW10-TTP | NW20-NTP | NW20-PTP | ||
| Flow-rate range (m3/h) | 1.5-20L/min | 1.0-10L/min | 3.0-60L/min | |||
| Accuracy | Flow-rate indication | ±2%RS±0.2L/min | ±2% RS±0.5L/min | |||
| Volume indication | ±2%RS (with the standard installation position) | |||||
| Measurable fluids | Various liquids (Please select with reference to the following major materials of the liquid-touching materials) | |||||
| Max. Working Pressure | 1MPa (at the time of fluid temperature of 20°C) | |||||
| Pressure Drop | Not more than 20kPa (At the time of 20L/min) | Not more than 15kPa (At the time of 10L/min) | Not more than 60kPa (At the time of 60L/min) | |||
| Fluid viscosity range | 0.5-1.5mPa·s | |||||
| Fluid temperature range | 0±60°C | |||||
| Ambient temperature range | 0±60°C 35-85%RH(Dew condensation must be avoided) | |||||
| Output signal (for NW-P) | 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, “OFF resistance” Not less than 100kΩ (Remained voltage not more than 1.5V in case of input current not more than 10mA) | |||||
| Pulse unit (for NW-P) | 1L/p | |||||
| LCD | Flow-rate | Smallest Scale | 0.2L/min | 0.5L/min | ||
| Display digits | 000.0L/min | |||||
| Volume | Display digits | 0000000.0L | ||||
| Power supply | Built-in lithium battery (Battery life 4 years. Not replaceable.) | |||||
| Measurable fluids | Refer to “MEASURABLE FLUID AND PARTS MATERIALS” | |||||
| Structure | IP64 equivalent, Indoor installation | |||||
| Connection | R1/2 | R3/4 | ||||
| Meter Weight | Approx. 250g | Approx. 500g | ||||
| Major materials of the liquid touching parts | Casing | PP | ETFE | Denatured PPO | PP | |
| Vane wheel | POM | ETFE | POM | |||
| Pivot | SUS304 | ETFE | SUS304 | |||
| O-ring | FKM | NBR | FKM | |||
| Magnet | Ba-Fe | Sa-Co *1 | Ba-Fe | |||
