| 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 |
| 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. |
| 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 |
| 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
|