VN Series is an electromagnetic flow sensor designed for small pipe diameter and low flow.
Features
- Electromagnetic flow sensor without moving parts suitable for use in machines.
- With absence of moving parts, there is less failure due to its contaminants.
- Low-pressure loss
- No straight pipe required, compact design, and easy to install.
Baca Juga :
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Specification
| Model | VN05R | VN10R | VN20R | |
|---|---|---|---|---|
| Nominal Diameters | 5mm | 10mm | 20mm | |
| Accuracy-Guaranteed Flow Range | 0.05～1L/min | 0.5～10L/min | 3.0～60L/min | |
| Maximum Operating Flow Rate | 3L/min | 25L/min | 100L/min | |
| Low Flow Cutoff | 0.025L/min | 0.25L/min | 1.5L/min | |
| Accuracy (Liquid Temp. at 25℃) | Frequency Pulse | ±2.5%RS (20% ~ 100% of maximum flow rate) ±0.5%FS (5% ~ 20% of maximum flow rate) *1 | ||
| Unit Pulse | ±2.0%RS (20% ~ 100% of maximum flow rate) ±0.4%FS (5% ~ 20% of maximum flow rate) *1 | |||
| Type of Fluid | Conductive fluid that does not corrode the material contacting to fluid (ex. cold/hot water) | |||
| Fluid Conductivity Range | 50μS/cm or more | |||
| Fluid Temperature Range | 0～+60℃ (No freezing) | |||
| Ambient Temperature / Humidity | Temperature: -20～+60℃ Humidity: 35～85％RH (No condensation) | |||
| Storage Ambient Temperature Range | -20～+70℃ | |||
| Working Pressure | 1MPa or less | |||
| Pressure Loss | 20kPa or less | |||
| Output 1 *3 | Spec. of Output | NPN open collector Current capacity: 20mA DC or less / Voltage: 30V DC or less / ON-time residual voltage: 1V or less Minimum pulse ON-time 2.5 ms (at 200 Hz frequency pulse) Duty ratio: 50% | ||
| Frequency Pulse *2 | Standard 200.0Hz (Settable in steps of 0.1Hz between 20 and 400Hz upon delivery) Note: When connecting ASI-100, select 200.0 Hz for output 1. | |||
| Unit Pulse | 0.001L/P (Standard) | 0.01L/P (Standard) | 0.1L/P (Standard) | |
| Alarm *4 | Selectable between Normal Open (Standard) and Normal Close Details of alarm (Excitation error / Memory error / Low source voltage / Dry moisture / Excessive fluid noise / Excessive flow rate / Reverse flow) | |||
| Switch | Selectable between Normal Open (Standard) and Normal Close | |||
| Output 2 *3 | Spec. of Output | Same as Output 1 | ||
| Unit Pulse | Same as Output 1 | |||
| Alarm *4 | Same as Output 1 Note: When connecting ASI-100, select Alarm for output 2 | |||
| Switch | Same as Output 1 | |||
| Response *3 | 63％ response Dampling time: 2s (Standard) Settable in steps of 1s from 1~99s upon delivery | |||
| Cable | Cable length: Approx. 500mm 4 core AWG28 Outer diameter: φ2.8 with a shield | |||
| LED Display | One LED display in the main body Green: Flow rate display in 3-step speed Red: NG status is displayed with number of blinks | |||
| Installation Position | Free (Air intrusion shall be avoided.) | |||
| Piping Connection | R1/4 | R1/2 | R1 | |
| Protection Level | Indoor use (Equivalent to IP65.) | |||
| Power Supply *5 | 12～24V DC±10% | |||
| Consumption Current | 100mA DC or less | |||
| Weight | Approx. 190 g | Approx. 190 g | Approx. 290 g | |
| Wetted Materials | Body Case | PPS | ||
| Electrode | SUS316L | |||
| Earth Ring | SUS316 | |||
| O-Ring | FKM | |||
*1：Accuracy is guaranteed value of average value accumulated for 240s.
*2：Indicates the frequency at the maximum guaranteed flow rate.
*3：For the set value and choice of Output 1 and Output 2, all are factory setting. The setting cannot be changed after installation.
*4：Alarm is selectable only either one of Output 1 or Output 2.
*5：Using isolated power supply and connecting one power supply device per VN flow sensor are recommended
*2：Indicates the frequency at the maximum guaranteed flow rate.
*3：For the set value and choice of Output 1 and Output 2, all are factory setting. The setting cannot be changed after installation.
*4：Alarm is selectable only either one of Output 1 or Output 2.
*5：Using isolated power supply and connecting one power supply device per VN flow sensor are recommended
Download Datasheet: Kofloc VN Electromagnetic Flow Meter
For further
information please contact : marketing@wmablog.com