Features of EHN-R-H2 series

  • ideal for boiler chemical injection into pressurized pipelines.*
  • Max. discharge pressure: 2.0 MPa (Max. 240 spm).

*observe the maximum discharge pressure.

Specifications of pump

Max. discharge capacity 17 mL/min
Max. discharge pressure 2.0 MPa
Main materials GFRPP, SUS316
Power supply AC 100 – 240 V, 50/60 Hz, single phase
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. 200Hz
Current DC 0 – 20 mA (Input resistance 200Ω)
Level sensor No Voltage contact or open collector, 2-steps contact
AUX Pump runs at max.stroke rate while AUX signal is input.
Output Photo-MOS relay AC/DC 24 V 0.1 A
STOP, Synchronous with stroke
Synchronous with stroke is standard.
Power Voltage 100 – 240 VAC  50/60 Hz (90 – 264 VAC)
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