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Max. discharge capacity range: 38 – 420 mL/min Our latest electromagnetic metering pump features water quality control functions and multivoltage operation
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WPO (pH/ORP), WEC (conductivity), WCT (cooling tower) and WCL (free residual chlorine) controllers are available. Also, the extra large LCD improves legibility and ease of operation.
Stroke speed adjustment in 1 spm increments allows fine flow adjustment between 1 and 360 spm in continuous chemical feeding.
The EWN-W can be used in all countries thanks to the universal power supply (100 – 240 VAC).
Newly-designed adjustable tube fittings eliminate tube twisting when fastening.
The molded pump body with a minimum of sealing surfaces meets a high level (IP65 equivalent) of both waterproofness and dustproofness.
Max. discharge capacity range | 38 – 420 mL/min |
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Max. discharge pressure | 0.2 – 1.0 MPa |
Main materials | PVC |
Stroke rate | 1 – 360 spm |
Power supply | 100 – 240 VAC, 50/60 Hz, single phase |
Liquid temperature range | 0 – 40°C |
Viscous liquid | Please contact us for details. |
Slurry liquid | Can not be handled. |
Model | WPO | WEC | WCT | ||
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Control modes | pH | Oxidation-reduction potential | Conductivity | Cooling tower | |
Control function | Function | AUTO / MANUAL | |||
Control method | Proportional control (PID control) | Proportional control | Timer control | ||
Input | Sensor input range | 0.00 – 14.00pH Auto (matic) temperature compensation |
–2000 – 2000 mV | 0 – 400 mS/m (0.00 – 4.00 mS/cm) | |
STOP / PreSTOP | Red LED lights and the pump stops at contact input. / Orange LED lights at contact input | ||||
AUX | The pump runs at 360 spm when the non voltage contact is on | Contact is on | |||
Interlock | The pump stops stops when the non voltage contact is on | ||||
Output | Output 1 | The non voltage contact is on (Mechanical relay) AC 250 V 3A 1. Upper limit output, 2. Lower limit output, 3. *Select of all functions (Select one function) |
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Output 2 | The non voltage contact is on (Photo MOS relay) AC/DC 24 V 0.1 A 1. Upper limit output, 2. Lower limit output, 3. *Select of all functions, 4. spm synchronous output (Select one function) *Sensor failure, STOP, PreSTOP, Interlock and AUX outputs can be set to the batch output |
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