ATI’s Model Q45H/65 Residual Chlorine Dioxide Monitor is designed for on-line monitoring and control of industrial disinfection systems. Chlorine dioxide is a powerful disinfecting agent used for treating potable water, cooling water, and food processing wash water. To ensure proper disinfection while minimizing disinfection by-products, the concentration of disinfectant must be precisely maintained. The Residual Chlorine Dioxide system features a unique membrane-covered polarographic sensor that does not require the addition of chemical reagents. All that’s needed is a constant flow of water...

A standard feature of the Q45H is a PID control function. To use this function, the primary 4-20 mA output from the monitor must be assigned for PID control. Control setpoint and PID variables for proportional, integral, and derivative are easily entered using front panel push buttons. The isolated 4-20 mA output can then be used as the control input to any metering pump with analog input capability. While not suitable for systems with rapid flow changes requiring compound-loop control, the Q45H PID function can handle many stable flow applications. The Model Q45H/65 Residual Chlorine Dioxide...

Suffix A - Power 1 - 24 VDC, 2-wire (Single output only) 2 - 115 VAC with 2 relays 3 - 230 VAC with 2 relays 4 - Battery operated with two 0-2.5 VDC outputs 5 - Battery operated with internal data-logger Suffix B- Sensor Style 1 - Sensor with constant head flowcell and 25' cable 2 - Submersible sensor with 25’ cable 3 - Sensor with sealed low-volume flowcell 4 - Sensor with 1-1/2" flow “T” 5 - Dual chlorine dioxide/pH sensors with constant head flowcell 6 - Dual chlorine dioxide/pH sensors with low-volume flowcell and 1" tee OPTIONS: 07-0100 NEMA 4X junction box 31-0038 Sensor interconnect cable...