Controllers

CH255

CHEMTROL® CH255 PPM/pH Digital Controller

SANITIZER and pH Control Made Easy

CHEMTROL® 255 PPM/pH Digital Controller introduces the new Sensor for Free Chlorine control. A microprocessor-based digital controller, designed to maintain both free chlorine (PPM) and water pH in Residential Pools and Spas, Commercial Pools and Spas, Hotels, Motels, Health Clubs, Apartments Buildings, Condo associations and Industrial Water Treatment.
Simplicity of installation, Compatible with all common sanitizers and oxidizers, ease of use and long-term reliability.


STANDARD FEATURES

  • Easy to install, Simple to use
  • All Control Functions on Front Panel
  • Free Chlorine control
  • pH control
  • Separate Adjustable Setpoints
  • Separate Adjustable Alarms
  • Out-of-range alarms
  • Acid/Base Selector
  • Proportional Feed with Adjustable Bandwidth
  • Separate Adjustable Overfeed Safety Timers
  • Waterproof Cabinet with Clear Window Cover

CH255 SPECIFICATIONS

free CHLORINE CONTROL Adjustable from 0.1 to 10.0 ppm (mg/l) or 0.01 to 2.0 (specify).
pH CONTROL Adjustable from 0.0 to 14.0
FREE CHLORINE SENSOR Solid state electrode with 3 m cable
pH SENSOR Glass electrode with 3 m cable
READOUTS PPM (3 digits) and pH (2 digits) LEDs
FEED MODES Manual, automatic, proportional
ADJUSTMENTS Set-point, calibration, limits, feed rate
INDICATORS LEDs for feed mode, feed status, alarms
SAFETY Audio, visual and remote alarms Out-of-range limits and overfeed safety timers
CABINET Polystyrene 22 x 18 x 10 cm
ELECTRICAL 230V or 24 VAC (specify)
PLUMBING PVC tees for 1-1/2″ or 2″ line