ROTEK RO Controller
 Reverse Osmosis Controller C-5TM


The C-5TM Reverse Osmosis Controller is designed to
control and monitor the operating parameters of a single
pump reverse osmosis water purification system at the
most economical cost.
Rotek has been designing and supplying standardlized
RO controller for the past 2 decades, after revised with
several versions and installed in the field for more than
2,000 units. C-5TM is the latest, reliable and flexible version
that is capable to do automatic permeate flush for high brackish
water applications and adjustable flush time. Moreover, the manual flush
button is able to start and stop the flush solenoid valve at any time, which
allows experienced engineer to flush the system with either raw water or clean water
at desired pluse rate to achieve the best membrane flushing result during operation or CIP.

Key Features

  • Permeate TDS monitoring (1-999ppm)

  • Selectable operation mode (OP-A/OP-B)

  • Automatic raw water flush (OP-A mode)

  • Automatic permeate flush (OP-B mode)

  • Multiple delayed feed solenoid valve closing time

  • System status LED lights indications

  • Manual flush button (immediate start and stop)

  • Adjustable flush time (initial/tank full/timer flushes)

  • Permeate tank full shut down & flush

  • Low feed pressure shut down

  • Improved EMI/EMC interference

  • Startup password enable/disable


  • Dimension: (W)151mm x (H)121mm x (D)40mm

  • Hole Size: (W)141mm x (H) 111mm

  • Power: AC110V / 220V ±10%, 50 / 60Hz

  • Input: Dry Contact, DC5V

  • Output: Relay AC110V – 1.0A / Relay AC220V – 0.5A

  • Working Condition: Temperature 0~50 C, Humidity≦85%

  • Installation: Panel Mounted

Mounting Example

© 2019 by E-ROTEK WATER SYSTEMS CO., LTD.  |  Pingtung County, Taiwan  |  |  (886) 2 2218 6425



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