AS Ultrasonic Flow Meters for Fuel Gas _Thiết bị đo lưu lượng khí nhiên liệu Aichi Tokei
Xuất sứ: Nhật Bản
Nhà cung cấp: Pitesco
Hãng sản xuất: Aichi Tokei Denki
Mr HaASUltrasonic Flow Meters for Fuel Gas
AS Series
Since AS flow meter covers wider range from small to large flow rate it contributes to cost saving and convenient facility management. At the same time, it saves the cost of redundant governor and piping.
･ Non-moving parts results in not degrading meter performance. It eventually makes needless to repair the parts and refuel the lubricant oil.
･ Because of the pressure loss being closely “0” it can get rid of the pressure shortage risk.
･ Because of lightweight and compact feature it enables easy installation and needs less space.
Product Specifications
| Model | Temperature compensation type *1 | Temperature and pressure compensation types | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| AS-25 | AS-32 | AS-40 | AS-50 | AS-80 | AS-100 | AS-150 | AS-200 | ||||
| Diameters | 25A | 32A | 40A | 50A | 80A | 100A | 150A | 200A | |||
| Power source | Built-in lithium batteries | ||||||||||
| Years of duration | 6 years | ||||||||||
| Measurable fluids | Natural gases and air | ||||||||||
| Operating pressure *1 | No pressure compensation : AS・□・0 Specification for the absolute pressures 0 to 0.2 MPa : AS・□・200 Specification for the absolute pressures 0 to 0.5 MPa : AS・□・500 |
Specification for the absolute pressures 0 to 0.2 MPa : AS・□・200 Specification for the absolute pressures 0 to 0.5 MPa : AS・□・500 Specification for the absolute pressures 0 to 1.0 MPa : AS・□・1000 |
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| Flow velocity range | 0.4m/s to 20m/s | ||||||||||
| Accuracy | Flow measurement accuracy | ±1%RS | Velocity (m/s) | 4m/s to 20m/s | |||||||
| Actual flow rate (m3/h) | 7 to 35 | 16 to 65 | 16 to 80 | 30 to 150 | 60 to 300 | 100 to 500 | 240 to 1200 | 400 to 2000 | |||
| ±2%RS | Velocity (m/s) | 0.4m/s to 20m/s | |||||||||
| Actual flow rate (m3/h) | 0.7 to 7 | 1.3 to 13 | 1.6 to 16 | 3 to 30 | 6 to 60 | 10 to 100 | 24 to 240 | 40 to 400 | |||
| Low flow cut-off (Initial flow rate) *2 |
Velocity (m/s) | Within 0.05 m/s | |||||||||
| Actual flow rate (m3/h) | 0.1 | 0.2 | 0.2 | 0.4 | 0.8 | 1.5 | 3.2 | 5.7 | |||
| Fluid temperature and humidity | 10 to + 60 °C, 90% RH or less | ||||||||||
| Pressure loss | Minimum (Equivalent with straight piping) | ||||||||||
| Display | Accumulated flow rate | Accumulated flow rate 00000000.0 9-digit (Nm3) | |||||||||
| Instantaneous flow rate *3 | (1) The maximum display ± 9999 m3/h (Actual flow rate) (2) Maximum display ± 9999 m3/h (Standard conversion) (Two decimal places if less than 200, one decimal place from 200 or more and less than 2000, and integer display for 2000 or more. |
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| Temperature *3 | 00.0℃ 3-digit | ||||||||||
| Pressure *3 | 0000.0kPa 5-digit | ||||||||||
| Output | Contact output | Open-drain output: Unit pulse (Positive flow) Pulse unit: 100 liter/P, 1000 liter/P |
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| Telegram output | RS485 Modbus/RTU | ||||||||||
| Connection method | Rc1 | Rc1・1/4 | GB/9119・2000 PN 1.6 MPa flange | ||||||||
| Mounting position | Horizontal and vertical | ||||||||||
| Installation location | Indoor and outdoor (supports the safety class IP64) | ||||||||||
| Case materials | Aluminum alloy | Stainless steel alloy | |||||||||
| The materials exposed to gases | Aluminum alloy and engineering plastic | Stainless steel alloy and engineering plastic | |||||||||
| Mass | 1.9kg | 1.9kg | 7.6kg | 9.6kg | 13.4kg | 13.2kg | 20.4kg | 35.4kg | |||
*1. The models 25A and 32A only support temperature compensation.
*2. The instantaneous flow velocity is displayed as 0 m3/h if it is less than 0.25% of the maximum flow velocity. The normal conversion type cuts the value in accordance with the normal conversion flow rate at 0.05 m/s.
*3. Automatic switching every 4 seconds
