ORAKEL pH sensors measure the online pH of any aqueous solution
- Up to 5 years continuous operation
- Stable and reliable
- Suitable for all potable and process waters
- Suitable for very low conductivity waters
- Integral temperature compensation
The range of ORAKEL pH sensors measure the online pH of any aqueous solution. They are combination glass electrodes with integral reference, automatic temperature compensation, solid polymeric junction (pH4), which use no reagents, are extremely stable, and have reduced maintenance and reduced whole life costs.
What makes it unique
The pH4 electrode is patented and has a large area electrochemically active solid polymer junction. This innovative design makes the electrode more responsive and with a longer life than ordinary electrodes (typically 3-5 years). Although they command a higher price in the market place these sensors are more than cost effective with their longer life and considerably lower maintenance requirements, typically only needing calibration once per two or three months.
pH4 is particularly sensitive to difficult pH4 applications such as very low ionic strength waters or chemically corrosive applications. pH1 – pH3 are less expensive, more traditional combination electrodes.
Combined reference, and measuring electrode
Patented electrochemically active solid polymer junction (pH4)
Ag/AgCl gel filled (pH1-pH3)
Long Term Stability (drift)
pH Glass <200 MOhm
95% of step pH2 to pH12 <5s
95% of step pH2 to pH12 <5s
pH Glass – Red Polymer – PVDF Body – Viton 0 rings
Low Noise Coaxial + 4 wires
Cable length – 6m
36 months application dependent (pH4)
12-18 months application dependent (pH1-pH3)
1 year (pH4)
3 months (pH1-pH3)
The ORAKEL PH sensors can be installed in a variety of auxiliary flow cells and self-cleaning devices.
Anywhere you have a requirement to measure pH is a suitable application for our pH sensors. One area the sensors excel is in the measurement of pH in very low conductivity or ultra clean water. They are also particularly suited to working in sites where reliability and ease of use are most important.
Typical applications include:
- Remote Sites
- Food Preparation
- Potable Water
- Cooling Towers
- Paper Mills
- Chemically Challenging Applications
Quick Selection Guide
|Single Open Flow Cell||♦||♦||♦|
|Dual Open Flow Cell||♦||♦||♦|
|Triple Open Flow Cell||♦||♦||♦|
|Closed Flow Cell||♦||♦||♦|
|Autoclean (Flow Cell)||♦|
|Autoclean Immersion (Dip)||♦|
|Autoclean Insertion (In Pipe)||♦|
|At Line Tee||♦||♦||♦|
|Standard Cable Length||1m||6m||6m||6m|
|Back/Front Thread||N/A||¾” NPT (Front only)||¾” NPT (Front & Back)||¾” BSP (Front & Back)|
|Water Proof Cable (Submersible||♦||♦|
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