Panasonic / Sunx EWA2 Specifications
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| 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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| * | When installing the monitor in a horizontal pipe, install it with its display facing up. It can also be installed to vertical pipings. |
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Individual specifications
Small pipe size type
| 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 |
|
| 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 | ||
| * | With supply pressure 0.7 MPa and temperature in pipe 25 ℃ 77 °F |
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Medium pipe size type
| 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) | ||||
| * | With supply pressure 0.7 MPa and temperature in pipe 25 ℃ 77 °F |
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Large pipe size type
| 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 |
|
| 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 | |||
| * | With supply pressure 0.7 MPa and temperature in pipe 25 ℃ 77 °F |
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Communication specifications
| 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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