Overview
The document describes an economical measurement system designed for safer drinking water, focusing on chlorine dioxide and free chlorine sensors. These sensors are amperometric with a 4 to 20 mA output, offering multiple ranges for enhanced accuracy. The system includes a flow cell that creates a vortex for consistent results, providing real-time, online measurements with automatic temperature compensation and signal conditioning.

Specifications
- Chlorine dioxide sensors measure 0 to 2 or 0 to 10 ppm, with some cross-sensitivity to ozone.
- Free chlorine sensors measure 0 to 2, 0 to 5, or 0 to 10 ppm, with cross-sensitivity to ozone, bromine, iodine, chlorine dioxide, chloramines, and bromamine.
- The sensors have a service life exceeding one year in most applications, with replacement parts available to reduce ownership costs.
- Sensor cable length is 10 feet.

Applications
The system is ideal for water treatment disinfection, measuring chemicals during the treatment process, and verifying proper amounts of residual chlorine dioxide or free chlorine.

Technical Assistance
Free technical applications assistance is available in the UK, US, Canada, and India, with contact details provided for each region.

Accessories
- ML-94785-12 Panel meter; 115 V
- ML-99672-05 Flow cell, 3⁄4" NPT(F) inlet and outlet
- ML-99672-10 Replacement sensor fill solution; chlorine dioxide, 60 mL
- ML-99672-12 Replacement membrane cap; chlorine dioxide and free chlorine
- ML-99672-14 Replacement sensor fill solution; free chlorine, 60 mL

Performance Details
- Accuracy: ±5% full-scale
- Temperature compensation: Automatic
- Maximum pressure: 14.7 psi (1 bar)
- Flow range: 8 to 26 GPH (30 to 98 LPH), ideal 11 to 16 GPH (40 to 60 LPH)
- Output: 4 to 20 mA
- Power: 16 to 24 VDC, 35 mA minimum
- Housing: PVC
- Dimensions: 35⁄16"W x 11"H x 5⁄8"D