Air Flow Monitor EWA2 (Discontinued Products)
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Discontinued Products
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Specifications
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Dimensions
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Circuit/ Wiring
Ⅾiscontinued
Last time buy
September 29, 2023
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Discontinued Products
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Specifications
Common specifications
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) | ||
Output mode | Direct flow pulse | ||
Over current protection | Equipped | ||
Pulse output time | Duty(1:1) 50/100/125/250/500ms (select in setting mode) | ||
Analog current output | Output current: 4 to 20 mA Output accuracy: ±0.1 mA Max. external load: 400 Ω or less | ||
Output mode | Instant flow, air pressure and temperature (select in setting mode) | ||
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) | ||
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 ℉) | ||
Ambient humidity | 90 % RH or less (No dew condensation or icing allowed) |
* When installing the monitor in a horizontal pipe, install it with its display facing up. It can also be installed to vertical pipings.
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 [ m3/h ] | −0.6 to −35 or +0.6 to +35 | −1.1 to −65 or +1.1 to +65 |
Normal flow* [ Nm3/h ] | −4.3 to −250 or +4.3 to +250 | −8 to −470 or +8 to +470 | |
Flow measuring accuracy | ±5%R.S. [ m3/h ] | −0.6 to −3.5 or +0.6 to +3.5 | −1.1 to −6.5 or +1.1 to +6.5 |
±2%R.S. [ m3/h ] | −3.5 to −35 or +3.5 to +35 | −6.5 to −65 or +6.5 to +65 | |
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, FVMQ | ||
Net weight | 1.5 kg approx. | 1.4 kg approx. | |
Accessories | M4 hexagon wrench: 1 pc |
* With supply pressure 0.7 MPa and temperature in pipe at +25 ℃ +77 °F
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 [ m3/h ] | −1.3 to −80 or +1.3 to +80 | −2.5 to −150 or +2.5 to +150 | −4 to −240 or +4 to +240 | −5 to −300 or +5 to +300 |
Normal flow* [ Nm3/h ] | −9.4 to −580 or +9.4 to +580 | −18 to −1,090 or +18 to +1,090 | −29 to −1,740 or +29 to +1,740 | −36 to −2,170 or +36 to +2,170 | |
Flow measuring accuracy | ±5%R.S. [ m3/h ] | −1.3 to −8 or +1.3 to +8 | −2.5 to −15 or +2.5 to +15 | −4 to −24 or +4 to +24 | -5 to −30 or +5 to +30 |
±2%R.S. [ m3/h ] | −8 to −80 or +8 to +80 | −15 to −150 or +15 to +150 | −24 to −240 or +24 to +240 | −30 to −300 or +30 to +300 | |
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, FVMQ | ||||
Net weight | 1.0 kg approx. | 1.2 kg approx. | 1.4 kg approx. | 1.7 kg 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 at +25 ℃ +77 °F
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 [ m3/h ] | −10 to −500 or +10 to +500 | −24 to −1,200 or +24 to +1,200 | −40 to −2,000 or +40 to +2,000 |
Normal flow* [ Nm3/h ] | −72 to −3,620 or +72 to +3,620 | −170 to −8,690 or +170 to +8,690 | −290 to −14,490 or +290 to +14,490 | |
Flow measuring accuracy | ±5%R.S. [ m3/h ] | −10 to −50 or +10 to +50 | −24 to −120 or +24 to +120 | −40 to −200 or +40 to +200 |
±2%R.S. [ m3/h ] | −50 to −500 or +50 to +500 | −120 to −1,200 or +120 to +1,200 | −200 to −2,000 or +200 to +2,000 | |
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 at +25 ℃ +77 °F
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 | |
Transmission speed | 9,600/19,200/38,400/57,600/115,200 bps (select in setting mode) | |
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 | |
Ending resistance | 100 Ω approx. (built-in) (select in setting mode) |
* 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.
NORMAL FLOW CONVERSION VALUE EXAMPLES
(unit:Nm3/h)
Model No. | Actual flow | Temp[℃] | Air pressure[MPa] | |||
---|---|---|---|---|---|---|
0(atmospheric pressure) | 0.4 | 0.5 | 0.6 | |||
AEWA2025 | ±0.6 to 35m3/h | 0 | ±0.6 to 35 | ±3 to 170 | ±3.6 to 210 | ±4.2 to 240 |
20 | ±0.6 to 33 | ±2.8 to 160 | ±3.3 to 190 | ±3.9 to 230 | ||
25 | ±0.5 to 32 | ±2.7 to 160 | ±3.3 to 190 | ±3.8 to 220 | ||
30 | ±0.5 to 32 | ±2.7 to 160 | ±3.2 to 190 | ±3.7 to 220 | ||
AEWA2032 | ±1.1 to 65m3/h | 0 | ±1.1 to 65 | ±5.4 to 320 | ±6.5 to 390 | ±7.6 to 450 |
20 | ±1 to 61 | ±5.1 to 300 | ±6.1 to 360 | ±7.1 to 420 | ||
25 | ±1 to 60 | ±5 to 290 | ±6 to 350 | ±7 to 410 | ||
30 | ±1 to 59 | ±4.9 to 290 | ±5.9 to 350 | ±6.9 to 410 | ||
AEWA2040 | ±1.3 to 80m3/h | 0 | ±1.3 to 80 | ±6.4 to 400 | ±7.7 to 470 | ±9 to 550 |
20 | ±1.2 to 75 | ±6 to 370 | ±7.2 to 440 | ±8.4 to 520 | ||
25 | ±1.2 to 73 | ±5.9 to 360 | ±7.1 to 430 | ±8.2 to 510 | ||
30 | ±1.2 to 72 | ±5.8 to 360 | ±7 to 430 | ±8.1 to 500 | ||
AEWA2050 | ±2.5 to 150m3/h | 0 | ±2.5 to 150 | ±12 to 740 | ±15 to 890 | ±17 to 1,040 |
20 | ±2.3 to 140 | ±12 to 690 | ±14 to 830 | ±16 to 970 | ||
25 | ±2.3 to 140 | ±11 to 680 | ±14 to 820 | ±16 to 950 | ||
30 | ±2.3 to 140 | ±11 to 670 | ±13 to 800 | ±16 to 940 | ||
AEWA2065 | ±4 to 240m3/h | 0 | ±4 to 240 | ±20 to 1,190 | ±24 to 1,420 | ±28 to 1,660 |
20 | ±3.7 to 220 | ±18 to 1,110 | ±22 to 1,330 | ±26 to 1,550 | ||
25 | ±3.7 to 220 | ±18 to 1,090 | ±22 to 1,300 | ±25 to 1,520 | ||
30 | ±3.6 to 220 | ±18 to 1,070 | ±21 to 1,280 | ±25 to 1,500 | ||
AEWA2080 | ±5 to 300m3/h | 0 | ±5 to 300 | ±25 to 1,480 | ±30 to 1,780 | ±35 to 2,080 |
20 | ±4.7 to 280 | ±23 to 1,380 | ±28 to 1,660 | ±32 to 1,930 | ||
25 | ±4.6 to 270 | ±23 to 1,360 | ±27 to 1,630 | ±32 to 1,900 | ||
30 | ±4.5 to 270 | ±22 to 1,340 | ±27 to 1,600 | ±31 to 1,870 | ||
AEWA2100 | ±10 to 500m3/h | 0 | ±10 to 500 | ±49 to 2,470 | ±59 to 2,970 | ±69 to 3,460 |
20 | ±9.3 to 470 | ±46 to 2,300 | ±55 to 2,760 | ±64 to 3,220 | ||
25 | ±9.2 to 460 | ±45 to 2,270 | ±54 to 2,720 | ±63 to 3,170 | ||
30 | ±9 to 450 | ±45 to 2,230 | ±53 to 2,670 | ±62 to 3,120 | ||
AEWA2150 | ±24 to 1,200m3/h | 0 | ±24 to 1,200 | ±120 to 5,940 | ±140 to 7,120 | ±170 to 8,310 |
20 | ±22 to 1,120 | ±110 to 5,530 | ±130 to 6,640 | ±150 to 7,740 | ||
25 | ±22 to 1,100 | ±110 to 5,440 | ±130 to 6,520 | ±150 to 7,610 | ||
30 | ±22 to 1,080 | ±110 to 5,350 | ±130 to 6,420 | ±150 to 7,480 | ||
AEWA2200 | ±40 to 2,000m3/h | 0 | ±40 to 2,000 | ±200 to 9,890 | ±240 to 11,870 | ±280 to 13,840 |
20 | ±37 to 1,860 | ±180 to 9,220 | ±220 to 11,060 | ±260 to 12,900 | ||
25 | ±37 to 1,830 | ±180 to 9,070 | ±220 to 10,870 | ±250 to 12,680 | ||
30 | ±36 to 1,800 | ±180 to 8,920 | ±210 to 10,690 | ±250 to 12,470 |
Model No. | Actual flow | Temp[℃] | Air pressure[MPa] | |||
---|---|---|---|---|---|---|
0.7 | 0.8 | 0.9 | 0.98 | |||
AEWA2025 | ±0.6 to 35m3/h | 0 | ±4.7 to 280 | ±5.3 to 310 | ±5.9 to 350 | ±6.4 to 370 |
20 | ±4.4 to 260 | ±5 to 290 | ±5.5 to 320 | ±6 to 350 | ||
25 | ±4.3 to 250 | ±4.9 to 290 | ±5.4 to 320 | ±5.9 to 340 | ||
30 | ±4.3 to 250 | ±4.8 to 280 | ±5.3 to 310 | ±5.8 to 340 | ||
AEWA2032 | ±1.1 to 65m3/h | 0 | ±8.7 to 510 | ±9.8 to 580 | ±11 to 640 | ±12 to 690 |
20 | ±8.1 to 480 | ±9.1 to 540 | ±10 to 600 | ±11 to 650 | ||
25 | ±8 to 470 | ±9 to 530 | ±10 to 590 | ±11 to 640 | ||
30 | ±7.8 to 460 | ±8.8 to 520 | ±9.8 to 580 | ±11 to 620 | ||
AEWA2040 | ±1.3 to 80m3/h | 0 | ±10 to 630 | ±12 to 710 | ±13 to 790 | ±14 to 850 |
20 | ±9.6 to 590 | ±11 to 660 | ±12 to 740 | ±13 to 800 | ||
25 | ±9.4 to 580 | ±11 to 650 | ±12 to 720 | ±13 to 780 | ||
30 | ±9.3 to 570 | ±10 to 640 | ±12 to 710 | ±12 to 770 | ||
AEWA2050 | ±2.5 to 150m3/h | 0 | ±20 to 1,190 | ±22 to 1,330 | ±25 to 1,480 | ±27 to 1,600 |
20 | ±18 to 1,110 | ±21 to 1,240 | ±23 to 1,380 | ±25 to 1,490 | ||
25 | ±18 to 1,090 | ±20 to 1,220 | ±23 to 1,360 | ±24 to 1,470 | ||
30 | ±18 to 1,070 | ±20 to 1,200 | ±22 to 1,340 | ±24 to 1,440 | ||
AEWA2065 | ±4 to 240m3/h | 0 | ±32 to 1,900 | ±36 to 2,130 | ±40 to 2,370 | ±43 to 2,560 |
20 | ±29 to 1,770 | ±33 to 1,990 | ±37 to 2,210 | ±40 to 2,390 | ||
25 | ±29 to 1,740 | ±33 to 1,960 | ±36 to 2,170 | ±39 to 2,350 | ||
30 | ±29 to 1,710 | ±32 to 1,920 | ±36 to 2,140 | ±38 to 2,310 | ||
AEWA2080 | ±5 to 300m3/h | 0 | ±40 to 2,370 | ±44 to 2,670 | ±49 to 2,960 | ±53 to 3,200 |
20 | ±37 to 2,210 | ±41 to 2,490 | ±46 to 2,760 | ±50 to 2,980 | ||
25 | ±36 to 2,170 | ±41 to 2,440 | ±45 to 2,720 | ±49 to 2,930 | ||
30 | ±36 to 2,140 | ±40 to 2,400 | ±45 to 2,670 | ±48 to 2,880 | ||
AEWA2100 | ±10 to 500m3/h | 0 | ±79 to 3,950 | ±89 to 4,450 | ±99 to 4,940 | ±110 to 5,340 |
20 | ±74 to 3,680 | ±83 to 4,140 | ±92 to 4,600 | ±99 to 4,970 | ||
25 | ±72 to 3,620 | ±81 to 4,070 | ±91 to 4,530 | ±98 to 4,890 | ||
30 | ±71 to 3,560 | ±80 to 4,010 | ±89 to 4,450 | ±96 to 4,810 | ||
AEWA2150 | ±24 to 1,200m3/h | 0 | ±190 to 9,490 | ±210 to 10,670 | ±240 to 11,860 | ±260 to 12,810 |
20 | ±180 to 8,840 | ±200 to 9,950 | ±220 to 11,050 | ±240 to 11,930 | ||
25 | ±170 to 8,690 | ±200 to 9,780 | ±220 to 10,860 | ±230 to 11,730 | ||
30 | ±170 to 8,550 | ±190 to 9,620 | ±210 to 10,680 | ±230 to 11,540 | ||
AEWA2200 | ±40 to 2,000m3/h | 0 | ±320 to 15,820 | ±360 to 17,790 | ±400 to 19,760 | ±430 to 21,340 |
20 | ±290 to 14,740 | ±330 to 16,580 | ±370 to 18,420 | ±400 to 19,890 | ||
25 | ±290 to 14,490 | ±330 to 16,300 | ±360 to 18,110 | ±390 to 19,550 | ||
30 | ±290 to 14,250 | ±320 to 16,030 | ±360 to 17,810 | ±380 to 19,230 |
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Dimensions
- Unit: mm in
Small pipe size type
Model No. | A | B | C |
---|---|---|---|
AEWA2025 | 147 5.79 | 162 6.38 | 80 3.15 |
AEWA2032 |
Medium pipe size type
Model No. | D | E | F |
---|---|---|---|
AEWA2040 | 76 2.99 | 163 6.42 | 81 3.19 |
AEWA2050 | 90 3.54 | 176 6.93 | 96 3.78 |
AEWA2065 | 108 4.25 | 197 7.76 | 117 4.61 |
AEWA2080 | 117 4.61 | 220 8.66 | 126 4.96 |
Large pipe size type
Model No. | G | H | J |
---|---|---|---|
AEWA2100 | 250 9.84 | 280 11.02 | 210 8.27 |
AEWA2150 | 300 11.81 | 341 13.43 | 280 11.02 |
AEWA2200 | 350 13.78 | 391 15.39 | 330 12.99 |
Connecting cable (Sold separately)
Model No. | L |
---|---|
AEWA1C05 | 5,000±50 196.85 ± 1.97 |
AEWA1C20 | 20,000+1000 787.4+3.940 |
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I/O Circuit and Wiring diagrams
I/O Circuit diagram
Note 1: Max. resistive load should be 400 Ω or less.