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Home  >>  Products  >>  pH & Conductivity  >>  pHastrode

"pHastrode" pH Electrode

Special pH Electrodes for Paints and Inks With Flushing Mechanism


This unique "pHastrode" pH electrode design incorporates a flushing mechanism into the reference junction assembly of a standard epoxy or glass body pH electrode. The flushing mechanism is activated by pushing the spring loaded cap. This feature, when coupled with our advanced pH measuring membrane and unique internal fill solution, gives fast, accurate, and incredibly stable pH readings, as well as excellent temperature response.

"pHastrode" electrodes, by nature of their design, have a faster flow rate past the reference junction than most combination electrodes. A faster flow rate enables the electrodes to work particularly well in slurry applications where clogging is prevalent, as well as low conductivity solutions which require faster junction flow rate for stability and accuracy. Additionally, several pH measuring membranes are offered enabling each user to customize the electrode for their application.




Technical Data

Technical Data
Temperature Range: Epoxy version 0 - 80°C. Glass version 0 to 100°C.
Response Time: 3 seconds to 98% of final value. (Dome bulb - 5 seconds to 98%).
Drift; Accuracy: Stable to 0.005 pH per 24 hours.
Reference: Double junction, sealed inner, refillable outer.
Measurement Range:
Type 1 glass - 0 to 14 pH. (standard full range hemispherical)
Type 2 glass - 0 to 12 pH. (low impedance for high purity water applications)
Type 3 glass - 1 to 12 pH. ("hard bulb" for viscous materials, slurries)
Type 7 glass - 0 to 14 pH. (dome or ruggedized bulb)
Lead Wire: 3 foot standard, up to 10 foot available
Connector Type: BNC standard with many others available.



Measuring viscous, oily, dirty, non-aqueous or sulfide containing samples quickly ruins most pH electrodes. The "pHastrode" solves this problem with a unique, flushable, reference junction. When the sample blocks or fouls the reference junction, a quick press of the "pHastrode" cap opens the junction, flushing clean the reference element and restoring like new electrode performance.



Epoxy and glass bodied versions are available. The epoxy body version may be completely disassembled for cleaning purposes. The glass bodied version offers not only the same convenient feature as the epoxy bodied version, but also offers high chemical resistance of an all glass design. Both epoxy body and glass body versions incorporate a double junction reference and may use any pH measuring membrane necessary to meet measurement needs.



Prices subject to change    Prices listed in US dollars for domestic shipments within US, Canada, & Mexico only    Export orders require quotations - click here for a quote     For more info call us 1-800-762-2478 or 954-946-9454.
Item Number Item Prices
Epoxy Body Series
PH-9021 Epoxy body, 0-14 pH glass, 12mm OD x 150mm L.(Type 1) $131.00
PH-9023 Epoxy body, 0-12 pH glass for high purity water applications, 12mm OD x 150mm L.(Type 2) 131.00
PH-9025 Epoxy body, 1-12 pH glass, Hard Bulb, 12mm OD x 150mm L (Type 3) 131.00
PH-9027 Epoxy body, 0-14 pH glass, Dome bulb, 12mm OD x 150mm L (Type 7) 131.00
Glass Body Series
PH-9031 Glass body, 0-14 pH glass, 12mm OD x 150mm L (Type 1) 164.00
PH-9033 Glass body, 0-12 pH glass for high purity water applications, 12mm OD x 150mm L (Type 2) 164.00
PH-9035 Glass body, 1-12 pH glass, Hard Bulb, 12mm OD x 150mm L (Type 3) 183.00
PH-9037 Glass body, 0-14 pH glass, Dome bulb, 12mm OD x 150mm L (Type 7) 183.00
Note: All electrode part numbers are quoted with 3 foot lead and BNC connector.
Note: Special cable length versions are available. Price upon request.
Note: Also available in American standard connector - please specify.


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