Features of EWN-Y series

Displaying flow rate (with EFS)
The required flow rate is simply input to the pump. Through feedback from the EFS sensor, the pump constantly adjusts its speed to maintain the set dosing rate – even under changing temperature, viscosity, or suction & discharge pressure conditions.
Feedback control (with EFS)
The EWN-Y gives a proportional 4 – 20mA output signal of dosing rate and displays operating history such as total flow volume and power-on time.
Discharge detection
Direct connection to the IWAKI FCP or FCM flow counter (excluding certain low- pressure models) allows effective monitoring of pump discharge (number of shots). Gas lock, abnormal pressure (only with FCP), etc., are also detectable.
Alarm output and analog output functions are provided as standard function
Two types of alarm outputs and analog output are provided as standard functions. The analog output can be used for flow rate monitoring.
Waterproof structure (IP65)
With the aim of improving resistance to exposure to liquid, the controller unit is installed on the back of the pump and the control panel is protected with a cover as standard equipment. A rubber gasket is provided between the pump head and the bracket to prevent water from entering from the periphery of the pump head.
Multi hose connection
The use of a new hose stopper eliminates a twist in tube connection.

Specifications

Max. discharge capacity range 38 – 420 mL/min
Max. discharge pressure 0.2 – 1.0 MPa
Main materials PVC, GFRPP, PVDF, SUS316
Stroke rate 1 – 360 spm
Power supply 100 – 240 VAC  50/60 Hz
Liquid temperature range PVC type: −10 – 40˚C
GFRPP type, PVDF type, SUS type: −10 – 60˚C
Viscous liquid Please contact us for details.
Slurry liquid Can not be handled.

Specifications of controller

Model EWN-Y With EFS Without EFS
Operational mode MAN control MAN(Manual) 0.1-100.0%(1-360spm)
Feedback control N/A 0.1 – 999.9mL/min
0.001 – 59.994 L/H
0.001 – 15.829 GPH
EXT control DIV N/A /1-9999
MULT x1-9999
Analog rigid 4 – 20, 20 – 4, 0 – 20, 20 – 0mA proportional control to stroke rates
Analog variable 2 – point setting (Analog variable)
(Proportional control to flow/stroke rates in the range of 0 – 20mA)
BATCH N/A 0.1 – 99999.9 mL
0.001 – 99.999 L
0.001 – 26.385 G
Input Pulse signal input
for batch control		 No voltage contact or open collector(Note 1)
Analogue 0 – 20mADC (Input resistance is 220Ω.)
STOP/Pre-STOP
(Level sensor)		 No voltage contact or open collector(Note 1)
AUX
Interlock
Batch
Output OUT1 No voltage contact (Mechanical relay), 250VAC 3A (Resistive load)
Either the Signal recognition output(Note 2), Control error, or Poor flow detection is selectable (default: STOP).
OUT2 No voltage contact (PhotoMOS relay), AC/DC24V 0.1A
Either the Sensor signal output, Synchronous output, Signal recognition output(Note 2), Control error or Poor flow detection is selectable.
Analogue 4 – 20mA DC (Allowable load resistance : 500Ω)
Data logging Total flow volume
Total number of strokes (1=1000 shots)
Total number of signal outputs (OUT1)
Total number of signal outputs (OUT2)
Total power connection time
Total operating time
Buffer memory Nonvolatile memory

Note 1: The maximum applied voltage from the pump to an external contact is 12V at 2.3mA. When using a mechanical relay, its minimum application load should be 1mA or below.
Note 2: STOP/ Pre-STOP/ Interlock/ Batch completion outputs are separately enabled.

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