Features of EWN-Y series
- Feedback control is now available with digital pulse signal operation in addition to analog control.
- Alarm output can be programmed for either normally open or normally closed operation.
- The new EWN-Y electromagnetic pump combined with EFS flow sensor provides accurate real time control & display of dosing rate.
- 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 or suction & discharge pressure conditions.
- The EFS is mounted directly on the pump to digitally display dosing rate per minute or hour – ALL WITHOUT ANY CALIBRATION.
- 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.
Specifications of pump
| Discharge capacity range | 38 – 420 mL/min |
|---|---|
| Max. discharge pressure | 0.2 – 1.0 MPa |
| Main materials | PVC, PTFE |
| Stroke rate | 1 – 360 spm |
| Liquid temperature range | 0 – 40°C |
| Viscous liquid | Please contact us for details. |
Specifications of controller
| Operation mode | MAN control | Operation at MAN speed | 0.1 – 100.0% (1 – 360 spm) |
|---|---|---|---|
| Feedback control | 0.1 – 999.9 mL/min, 0.001 – 59.994 L/H, 0.001 – 15.828 GPH | ||
| EXT control | ANA.R (analogue rigid) | 4 – 20, 20 – 4, 0 – 20, 20 – 0 mA (proportional operation with stroke rate) | |
| ANA.V (analogue variable) | 2 point setting (set point 1 and 2, flow rate or stroke rate) | ||
| BATCH (batch operation) | 0.1 – 99999.9 mL, 0.001 – 99.999 L, 0.001 – 26.385 G | ||
| PLS (pulse operation) | 2 point setting (set point 1 and 2, flow rate or stroke rate) | ||
| Input | Buffer pulse | No voltage contact or open collector | |
| Analogue | 0 – 20 mADC (input resistance 220 Ω) | ||
| STOP/Pre-STOP (level sensor) | No voltage contact or open collector | ||
| AUX | No voltage contact or open collector | ||
| Interlock | No voltage contact or open collector | ||
| Batch Start/Stop | No voltage contact or open collector | ||
| Pulse | No voltage contact or open collector | ||
| Output | OUT1 | No voltage contact (mechanical relay) 250 VAC at 3A (resistance load), Enable or disable the alarms of STOP, Pre-STOP, Interlock, Batch, Out of measurement and Poor flow | |
| OUT2 | No voltage contact (photoMOS) 24 VAC/DC at 0.1 A, Enable or disable the alarms of STOP, Pre-STOP, Interlock, Batch, Out of measurement and Poor flow or Synchronous output (sensor/pump) | ||
| Analogue | 4 – 20 mADC (The max. load resistance is 500 Ω) | ||
| Buffer memory | Nonvolatile memory | ||
| Power voltage | 100 – 240 VAC 50/60 Hz | ||
