Model # CMTCH250
CHEMTROL® 250 Sanitizer & pH Controller
Digital Microprocessor-Based Control for Pools, Spas & Water Treatment
✅ Features & Benefits
✅ Dual control system – maintains both sanitizer (ORP/Redox) and water pH
✅ Designed for residential & commercial pools, spas, hotels, motels, health clubs, apartments, condos, and industrial water treatment
✅ Easy installation and simple operation with front panel controls
✅ Separate adjustable set-points for sanitizer and pH
✅ Built-in adjustable alarms for out-of-range conditions
✅ Acid/Base selector for flexible chemical feed
✅ Proportional feed with adjustable bandwidth for accurate dosing
✅ Overfeed safety timers (independent, adjustable)
✅ Durable waterproof cabinet with clear window cover
✅ Backed by a 5-year electronics warranty
➡️ Simple, Reliable Water Chemistry Control
➡️ The CHEMTROL® 250 delivers worry-free water balance management with microprocessor precision — making sanitizer and pH control easy for operators of all pool and spa types.
⚠️ Tech Tips & Cautions
⚠️ Compatible with all common sanitizers & oxidizers (chlorine, bromine, ozone)
⚠️ Ensure sensors are calibrated regularly for accurate readings
⚠️ Installation should follow local codes and manufacturer’s guidelines
⚠️ Ideal for facilities needing basic, reliable automation without complex integration
✅ Control Parameters
✅ ORP Control: Adjustable from 200 to 999 mV
✅ pH Control: Adjustable from 0.0 to 14.0
✅ ORP Sensor: Platinum electrode with 3 m cable
✅ pH Sensor: Glass electrode with 3 m cable
✅ Readouts: 3-digit ORP LED, 2-digit pH LED
✅ Operating Modes & Adjustments
✅ Feed Modes: Manual, Automatic, Proportional
✅ Adjustments: Set-point, calibration, limits, feed rate
✅ Indicators: LED status for feed mode, feed activity, and alarms
✅ Safety Features: Audio, visual & remote alarms, out-of-range limits, overfeed safety timers
✅ Mechanical & Electrical
✅ Cabinet: Polystyrene enclosure 22 x 18 x 10 cm
✅ Electrical: 230V or 24 VAC (specify on order)
✅ Plumbing: PVC tees for 1-1/2″ or 2″ lines
✅ Weight: 3 kg (without pumps) / 6 kg (with 2 chemical feed pumps)
✅ Shipping: 30 x 30 x 30 cm carton
