Visualize Compressed Air and Nitrogen Gas (N2) Consumption in order to Identify and Eliminate Waste!*
| Small pipe size 25A,32A |
Medium pipe size 40A, 50A, 65A, 80A |
Large pipe size 100A, 150A, 200A |
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CE Approved
CE : EMC Directive (all models), Pressure Equipment Directive (AEWA2150/2200 only)
*Nitrogen gas can be measured with small or medium pipe size only.
Reducing the power consumption of air compressors should be a key target of any energy savings plan.
Install the ultrasonic type Air Flow Monitor on each compressor to monitor air leakage and provide an overall improvement of the compressor’s operating efficiency.
![[Feature 1] Ultrasonic detection system](https://www.wentech.com.my/cms/cms/wp-content/uploads/2016/05/EWA2-pic10.jpg) |
Easy to use, with high durability! Since the ultrasonic sensor is adopted as a detection principle, elements such as filters are not required and air containing oil mist can also be measured. The sensor is stain resistant, and no maintenance is required. |
![[Feature 2] Measurable fluids Compressed air Nitrogen gas](https://www.wentech.com.my/cms/cms/wp-content/uploads/2016/05/EWA2-pic11.jpg) |
Nitrogen gas can be measured!* In addition to the compressed air, the capability to measure high-cost nitrogen gas is added. Air leakage from pipes can be detected and air supply capacity of the compressor can be optimized to reduce the wasted power. * Nitrogen gas can be measured with small or medium pipe size only. |
![[Feature 3] Flow conversion NORMAL STANDARD](https://www.wentech.com.my/cms/cms/wp-content/uploads/2016/05/EWA2-pic12.jpg) |
Selectable flow conversion function! [Normal flow] The volumetric flow rate per unit time at 0℃, 1 atm (atmospheric pressure) [Standard flow] The volumetric flow rate per unit time at set temperature (℃), 1 atm (atmospheric pressure) |
![[Feature 4] RS485 Communication MODBUS (RTU) Read/Write](https://www.wentech.com.my/cms/cms/wp-content/uploads/2016/05/EWA2-pic13.jpg) |
Newly installed MODBUS(RTU) communication function! Data obtained at site can be transmitted to Data Logger Light (DLL). Detailed data management can be realized with ease. |
Zero energy losses
There are no obstructions within the measurement pipe due to the ultrasonic detection system, thus causing zero pressure losses.
The R.S. (reading scale) accuracy is the accuracy applicable to all readings in the flow rate range. Therefore, flow rates even in the low flow rate range can be read with high accuracy.
Direct and reverse flow can be measured. Consumption of air transferred between buildings can be measured.
Pulse output and analog current output are available. It can be used during communication.
| Item | Specifications | ||
|---|---|---|---|
| Rated pressure range | 0 to 1 MPa (gauge pressure) | ||
| Rated operating voltage | 24V DC±10% | ||
| Power consumption | 1.5 W or less | ||
| Pulse output | Open drain output ・Max. inflow current : 50mA ・Applied voltage : 24V DC or less ・Residual voltage: 1.5 V or less (at inflow current 50 mA) |
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| Output mode | Direct flow pulse | ||
| Over current protection | Equipped | ||
| Pulse output time | Duty(1：1) 50/100/125/250/500ms (select in setting mode) |
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| Analog current output | Output current: 4 to 20 mA Output accuracy: ±0.1 mA Max. external load: 400 Ω or less |
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| Output mode | Instant flow, air pressure and temperature (select in setting mode) |
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| Instant flow | Zero point: 4 mA (Direct flow display mode, reverse flow ～ within low flow cut off) 12 mA (Direct/Reverse flow display mode, within low flow cut off) |
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| Air pressure | 0 kPa: 4 mA, 1 MPa: 20 mA | ||
| Temperature | −10℃ +14 ℉ : 4mA, ＋60℃ +140 ℉ : 20mA | ||
| Pressure loss | Extremely small (same as straight pipe) | ||
| Response time | 500ms | ||
| Using environment | Enclosure protection | IP64(IEC) | |
| Ambient temperature | −10 to ＋60℃ +14 to +140 ℉ (Storage: -20 to +70 ℃ -4 to +158 ℉) |
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| Ambient humidity | 90 % RH or less (No dew condensation or icing allowed) |
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| Model No. | AEWA2025 | AEWA2032 | |
|---|---|---|---|
| Pipe size | 25A (1B) | 32A (1 1/4B) | |
| Measurable fluids | Air (compressed air), Nitrogen gas | ||
| Flow range (actual flow) | −0.6 to −35m3/h or ＋0.6 to ＋35m3/h |
−1.1 to −65m3/h or ＋1.1 to ＋65m3/h |
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| Flow measuring accuracy | ±5％R.S. | −0.6 to −3.5m3/h or ＋0.6 to ＋3.5m3/h |
−1.1 to −6.5m3/h or ＋1.1 to ＋6.5m3/h |
| ±2％R.S. | −3.5 to −35m3/h or ＋3.5 to ＋35m3/h |
−6.5 to −65m3/h or ＋6.5 to ＋65m3/h |
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| Conversion accuracy | ±2.5%R.S.〔at dry air or nitrogen gas (at 90 % RH or below), ordinary temperatures and 0.5 MPa〕 | ||
| Unit for pulse output | 10 / 100 / 1,000 [L/pulse] | ||
| Low flow cut off | Within ±0.1m3/h | Within ±0.2m3/h | |
| Material | Measuring pipe: Aluminum alloy, PPS and FVMQ | ||
| Net weight | 1.5kg approx. | 1.4kg approx. | |
| Accessories | M4 hexagon wrench: 1 pc | ||
| Model No. | AEWA2040 | AEWA2050 | AEWA2065 | AEWA2080 | |
|---|---|---|---|---|---|
| Pipe size | 40A (1 1/2B) | 50A (2B) | 65A (2 1/2B) | 80A (3B) | |
| Measurable fluids | Air (compressed air), Nitrogen gas | ||||
| Flow range (actual flow) |
−1.3 to −80m3/h or ＋1.3 to ＋80m3/h |
−2.5 to −150m3/h or ＋2.5 to ＋150m3/h |
−4 to −240m3/h or ＋4 to ＋240m3/h |
−5 to −300m3/h or ＋5 to ＋300m3/h |
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| Flow measuring accuracy | ±5％R.S. | −1.3 to −8m3/h or ＋1.3 to ＋8m3/h |
−2.5 to −15m3/h or ＋2.5 to ＋15m3/h |
−4 to −24m3/h or ＋4 to ＋24m3/h |
-5 to −30m3/h or ＋5 to ＋30m3/h |
| ±2％R.S. | −8 to −80m3/h or ＋8 to ＋80m3/h |
−15 to −150m3/h or ＋15 to ＋150m3/h |
−24 to −240m3/h or ＋24 to ＋240m3/h |
−30 to −300m3/h or ＋30 to ＋300m3/h |
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| Conversion accuracy | ±2.5%R.S.〔at dry air or nitrogen gas (at 90 % RH or below), ordinary temperatures and 0.5 MPa]〕 | ||||
| Unit for pulse output | 10 / 100 / 1,000 [L/pulse] | ||||
| Low flow cut off | Within ±0.2m3/h | Within ±0.4m3/h | Within ±0.6m3/h | Within ±0.8m3/h | |
| Material | Measuring pipe: Aluminum alloy, PPS and FVMQ | ||||
| Net weight | 1.0kg approx. | 1.2kg approx. | 1.4kg approx. | 1.7kg approx. | |
| Accessories | Positioning collar: 4 pcs, M4 hexagon wrench: 1 pc, Flange packing: 2 pcs, Bolt set: 1 set (bolt, nut and plain washer) | ||||
| Model No. | AEWA2100 | AEWA2150 | AEWA2200 | |
|---|---|---|---|---|
| Pipe size | 100A (4B) | 150A (6B) | 200A (8B) | |
| Measurable fluid | Air (compressed air) | |||
| Flow range (actual flow) |
−10 to −500m3/h or ＋10 to ＋500m3/h |
−24 to −1,200m3/h or ＋24 to ＋1,200m3/h |
−40 to −2,000m3/h or ＋40 to ＋2,000m3/h |
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| Flow measuring accuracy | ±5％R.S. | −10 to −50m3/h or ＋10 to ＋50m3/h |
−24 to −120m3/h or ＋24 to ＋120m3/h |
−40 to −200m3/h or ＋40 to ＋200m3/h |
| ±2％R.S. | −50 to −500m3/h or ＋50 to ＋500m3/h |
−120 to −1,200m3/h or ＋120 to ＋1,200m3/h |
−200 to −2,000m3/h or ＋200 to ＋2,000m3/h |
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| Conversion accuracy | ±2.0 %R.S.〔at dry air (at 90 % RH or below), ordinary temperatures and 0.3 MPa〕 | |||
| Unit for pulse output | 100 / 1,000 / 10,000 [L/pulse] | |||
| Low flow cut off | Within ±2.6m3/h | Within ±5.0m3/h | Within ±9.0m3/h | |
| Material | Measuring pipe: Stainless alloy, PPS and FVMQ | |||
| Net weight | 10.3kg approx. | 18.3kg approx. | 24.4kg approx. | |
| Accessories | Positioning collar: 2 pcs, M4 hexagon wrench: 1 pc | |||
| Item | Specifications | |
|---|---|---|
| Interface | Conforming to EIA-485 | |
| Protocol | MODBUS(RTU) | |
| Communication method | Half-duplex | |
| Synchronous system | Synchronous communication method | |
| Number of connected units | 115,200 bps: Max. 8 units 9,600/19,200/38,400/57,600 bps: Max. 31 units |
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| Transmission speed | 9,600/19,200/38,400/57,600/115,200 bps (select in setting mode) |
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| Transmission format | Data length | 8 bit |
| Stop bit | 1 bit/2 bit | |
| Parity | None/Odd number/Even number | |
| Data buffer | 100 byte | |
| Response time | 9,600bps: 100 to 130ms 19,200bps: 70 to 100ms 38,400bps: 50 to 80ms 57,600bps: 40 to 70ms 11,5200bps: 40 to 70ms |
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| Ending resistance | 100 Ω approx. (built-in) (select in setting mode) |
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* The number of connectable units, transmission distance, and transmission speed may differ depending on the device to be connected and transmission path. Please confirm using the actual device.
■Note on installation
When installing the monitor in a horizontal pipe, install it with its display facing up. It can also be installed to vertical pipings.
