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Air Flow Monitor EWA1 (Discontinued Products)

We are sorry, the products have been discontinued. Please refer to the details of the discontinued products and the recommended substitutes list below.

Last time buy August 31, 2015
 
Specifications

Specifications

COMMON SPECIFICATIONS

Item Specifications
Rated pressure range 0 to 1 MPa (gauge pressure)
Measurable fluid Air (compressed air)
Rated operating voltage 24 V DC ±10 %
Rated power consumption 40 mA or less
Pulse output
(Pulse output 1 and Pulse output 2)		 Open drain output
•Max. inflow current: 10 mA
•Applied voltage: 24 V DC or less
•Residual voltage: 1 V or less
(at inflow current 10 mA)
  Output mode Pulse output 1: Direct flow pulse
Pulse output 2: Reverse flow pulse, Flow limit alarm
(select by button operation)
Over current protection Equipped
Pulse output duty 1:1 (35 to 65 %)
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 by button operation)
  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 ℉: 4 mA, +60 ℃ +140 ℉: 20 mA
Pressure loss Extremely small
(same as straight pipe)
Response time 500 ms
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)

INDIVIDUAL SPECIFICATIONS

Small pipe size type

Model No. AEWA1025 AEWA1032
Pipe size 25A (1B) 32A (1 1/4B)
Flow range (actual flow) −0.6 to −35 m3/h or+0.6 to +35 m3/h −1.1 to −65 m3/h or+1.1 to +65 m3/h
Flow measuring
accuracy		 ±5 % R.S. −0.6 to −3.5 m3/h or+0.6 to +3.5 m3/h −1.1 to −6.5 m3/h or+1.1 to +6.5 m3/h
±2 % R.S. −3.5 to −35 m3/h or+3.5 to +35 m3/h −6.5 to −65 m3/h or+6.5 to +65 m3/h
Normal conversion
accuracy		 ±2.5 % R.S.
(at dry air, ordinary temperatures and 0.5 MPa)
Unit for pulse output 10, 100, 1,000 NL/pulse or L/pulse
Low flow cut off Within ±0.09 m3/h Within ±0.16 m3/h
Material Measuring pipe: Aluminum alloy, PPS and phlor silicone rubber
Net weight 1.5 kg approx. 1.4 kg approx.
Accessories M4 hexagon wrench: 1 pc

Medium pipe size type

Model No. AEWA1040 AEWA1050 AEWA1065 AEWA1080
Pipe size 40A (1 1/2B) 50A (2B) 65A (2 1/2B) 80A (3B)
Flow range (actual flow) −1.3 to −80 m3/h
or
+1.3 to +80 m3/h		 −2.5 to −150 m3/h
or
+2.5 to +150 m3/h		 −4 to −240 m3/h
or
+4 to +240 m3/h		 −5 to −300 m3/h
or
+5 to +300 m3/h
Flow measuring
accuracy		 ±5 % R.S. −1.3 to −8 m3/h
or
+1.3 to +8 m3/h		 −2.5 to −15 m3/h
or
+2.5 to +15 m3/h		 −4 to −24 m3/h
or
+4 to +24 m3/h		 −5 to −30 m3/h
or
+5 to +30 m3/h
±2 % R.S. −8 to −80 m3/h
or
+8 to +80 m3/h		 −15 to −150 m3/h
or
+15 to +150 m3/h		 −24 to −240 m3/h
or
+24 to +240 m3/h		 −30 to −300 m3/h
or
+30 to +300 m3/h
Normal conversion
accuracy		 ±2.5 % R.S.
(at dry air, ordinary temperatures and 0.5 MPa)
Unit for pulse output 10, 100, 1,000 NL/pulse or L/pulse
Low flow cut off Within
±0.2 m3/h		 Within
±0.4 m3/h		 Within
±0.6 m3/h		 Within
±0.8 m3/h
Material Measuring pipe: Aluminum alloy, PPS and phlor silicone rubber
Net weight 1.0 kg approx. 1.2 kg approx. 1.5 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)

Large pipe size type

Model No. AEWA1100 AEWA1150 AEWA1200
Pipe size 100A (4B) 150A (6B) 200A (8B)
Flow range (actual flow) −10 to −500 m3/h
or
+10 to +500 m3/h		 −24 to −1,200 m3/h
or
+24 to +1,200 m3/h		 −40 to −2,000 m3/h
or
+40 to +2,000 m3/h
Flow measuring
accuracy		 ±5 % R.S. −10 to −50 m3/h
or
+10 to +50 m3/h		 −24 to −120 m3/h
or
+24 to +120 m3/h		 −40 to −200 m3/h
or
+40 to +200 m3/h
±2 % R.S. −50 to −500 m3/h
or
+50 to +500 m3/h		 −120 to −1,200 m3/h
or
+120 to +1,200 m3/h		 −200 to −2,000 m3/h
or
+200 to +2,000 m3/h
Normal conversion
accuracy		 ±2 % R.S.
(at dry air, ordinary temperatures and 0.5 MPa)
Unit for pulse output 0.1, 1, 10 Nm3/pulse or m3/pulse
Low flow cut off Within
±2.6 m3/h		 Within
±5.0 m3/h		 Within
±9.0 m3/h
Material Measuring pipe: Stainless steel alloy, PPS and phlor silicone rubber
Net weight 10.3 kg approx. 18.3 kg approx. 24.4 kg approx.
Accessories Positioning collar: 2 pcs, M4 hexagon wrench: 1 pc
Normal flow conversion
*Please go to the below referenced web link regarding other temperature / pressure conditions.
>>Normal / Liter conversion chart of flow range

I/O CIRCUIT DIAGRAM

I/O CIRCUIT DIAGRAM
Note:
1) Max. resistive load should be 400 Ω or less.
2) Lead wire (pink) is not used. Be sure to insulate it.

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Specifications
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