Features of EHN-R-H2 series
Max. discharge pressure: 2.0 MPa (Max. 240 spm).
ideal for boiler chemical injection into pressurized pipelines.*
*Observe the maximum discharge pressure.
The use of the multi voltage circuit design allows the pump to work anywhere in the world.
The use of the integrated controller reduces a sealing area, so that the water-/dust-proof design of IP65 is attained. Also, a plastic cover protects the control panel under an adverse environment.
Rotating a standard air vent valve, the remained gas can be easily expelled from the pump head.
Specifications of pump
| Discharge capacity |
17 mL/min |
| Max. discharge pressure |
2.0 MPa |
| Main materials |
GFRPP, SUS316, PTFE |
| Stroke rate |
1 – 240 spm |
| Liquid temperature range |
-10 – 60°C |
Specifications of controller
| Operational mode |
MAN |
0.1 – 100% stroke rate |
| EXT |
DIV (Dividing) |
/1 – 9999 |
| MULT (Multiply) |
×1 – 9999 |
| ANA.R (Analog, rigid) |
4 – 20, 0 – 20, 20 – 4, 20 – 0 mA |
| ANA.V (Analog, variable) |
2 points 0.0 – 20.0 mA range 0.0 – 100% stroke rate |
| Control function |
STOP/Pre-Stop |
Pump keeps running when Pre-STOP is activated. Pump stops when STOP is activated. |
| Prime |
Pump runs at max. stroke rate while up and down keys are pushed. |
| Key lock |
Key can be locked and unlocked. |
| Calibration |
Discharge capacity per shot is calculated automatically by operating and stopping pump at calibration mode to make flow rate indication possible. |
| Buffer memory |
ON or OFF is selectable. Max. 65535 stroke pulses are put in memory. |
| Input |
Pulse |
Non Voltage contact or open collector, Max. 200 Hz |
| Current |
DC 0 – 20 mA (Input resistance 200 Ω) |
| Level sensor |
Non Voltage contact or open collector, 2- steps contact |
| AUX |
Pump runs at max. stroke rate while AUX signal is input. |
| Output |
Photo-MOS relay 24 VAC/DC 0.1 A |
| STOP, Synchronous with stroke |
| Synchronous with stroke is standard. |
| Power Voltage |
100 – 240 VAC 50/60 Hz (90 – 264 VAC) |
