Gas Stack Scrubber pH/ORP Systems

The Gas Stack Scrubber pH system comprises of a standard high impedance pH sensor and refex reference sensor installed in a flow through sample cell.

Refex reference sensors are designed for arduous applications particularly in applications like gas stack scrubbers where fouling or poisoning conditions exist. The reference 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.  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.

Sample cells are also available in corrosion resistant plastics and polymers.

Gas Stack Scrubber System Specifications

pH Range	0 – 13 pH
ORP Range	Up to 2000mV
Temperature	0 – 90 °C / 0 – 194 °F
Pressure Rating	20 bar/ 300psi
Process Connections	¾” NPT Female Thread / Others Available
Flowcell	316 Stainless Steel
Cell flow rate	2 liters/min
Probe Set	12mm diameter x 40mm pH / ORP element with PT100 temperature sensor ¾” Refex Jumbo reference cell
Cable Length	Standard cable lengths 1, 3, 5 10m.  Custom lengths available
Temperature Element	PT100 or PT1000
pH sensor Impedance	150 Mohm
Reference Impedance	<50kohms