Features of EWN-W series

Controller variation
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.
High resolution
Stroke speed adjustment in 1spm increments allows fine flow adjustment between 1 and 360spm in continuous chemical feeding.
Multi voltage
The EWN-W can be used in all countries thanks to the universal power supply(100-240VAC).
Adjustable tube fitting
Newly-designed adjustable tube fittings eliminate tube twisting when fastening.
Pump body
The molded pump body with a minimum of sealing surfaces meets a high level (IP65 equivalent) of both waterproofness and dustproofness.

Specifications of pump

Max. discharge capacity range 38 – 420 mL/min
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.

Specifications of controller

Model WPO WEC WCT
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, Automatic temperature compensation –2000 – 2000mV 0 – 400mS/m (0.00 – 4.00mS/cm)
STOP / PreSTOP Red LED lights and the pump stops at contact input. / Orange LED lights at contact input
AUX The pump runs at 360spm 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) AC250V3A 1. Upper limit output 2. Lower limit output 3. Select of all functions 4. spm synchronous output (Select one function)
Output 2 The non voltage contact is on (Photo MOS relay)AC/DC24V V0.1A 1. Upper limit output 2. Lower limit output 3. Select of all functions 4. spm synchronous output (Select one function)
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Product information

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