12mm probes and combination electrodes

Refex 12mm probes are the industry standard 120mm in length and designed to fit in any 12mm x 120mm “socket” where pH measurement is made.  Available as combination electrodes or separates, with a variety of cable lengths and with optional temperature sensing elements, Refex EC series probes give long life and exceptional performance over and above other sensors without the need to change piping and housings.

Refex reference sensors are designed for arduous applications particularly 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.

Refex EC Series probes are available as combination electrodes or as separate sensors.

12mm EC Series Electrode Specification

pH Range	0 – 13 pH
Temperature	0 – 90 °C / 0 – 194 °F
Pressure Rating	10 bar/ 150psi
Connections	Pg 13.5 free turning cap
Probe Size	12mm diameter x 120mm insertion length
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
Cable Connections	Stripped and tinned cable ends