Water Treatment pH/ORP Systems

Refex Water Treatment pH/ORP Measurement Systems are designed to give reliable, continuous real time measurement of water quality in both water purification and waste water applications.  Designed to be operated as a side steam, the system is supplied complete with a purpose built flowcell assembly that houses the measurement electrodes.

For pH/ORP measurement, Refex reference and glass pH/ORP separates are provided.  The robust reference sensor uses a highly stable non-porous polymeric interface instead of a traditional porous liquid junction as used by all conventional reference electrodes.  The active reference area is the whole of the outside surface of the electrode and this super large contact area means that the electrode is supremely resistant to coatings, even in the harshest of applications.  Poisoning effects are eliminated because the polymeric reference material is conductive to ions but not porous; the reference can operate electrically but electrolyte and process fluids are not exchanged.

Systems are available with combination probes and electrode/reference separates and are configured depending upon application requirements.

To complete the package, a multi-parameter analyzer unit is supplied to give and transmit real time pH/ORP and temperature information to local SCADA and control systems.

Ultra Pure Water System Specifications

pH Range	0 – 13.5 pH
ORP Range	2000mV
Temperature	0 – 60 °C / 0 – 140 °F
Pressure Rating	10 bar/ 150psi
Process Connections	½” pipe fittings (depends upon application requirements)
Separate Reference Probe	Refex ¾” Jumbo Solid State reference cell
Separate pH probe	12mm diameter x 25mm length
Combination pH probe	¾” NPT probe with glass pH electrode and Refex reference junction
Temperature Element	PT100, PT1000 or 3kohm
pH sensor Impedance	150Mohm
Reference Impedance	20kohms
Cable Length	Standard cable lengths 1, 3, 5 10m.  Custom lengths available
Flow Cell Material	Polypropylene, piping PVC
Flow rate	Up to 5 liters/min