In-Situ pH and ORP Electrodes
This series of pH and ORP electrodes are designed for use in pressurized immersion electrode assemblies used in fermentors and reaction vessels. The sterilizable combination electrodes are designed for repeated steam sterilization cycles at 130°C. Pressure compensation should be effected during all sterilization cycles. The electrodes are constructed with an annular ceramic junction eliminating the fouling problem which normally occurs with sterilizable electrodes. Electrodes are available in both single and double junction chambers. The double junction electrode is recommended over the single junction for long-term stability and use. By the virtue of this special design, the internal reference junction is a sealed Ag/AgCl reference with a special high temperature KCl gel reference solution. An internal annular ceramic junction eliminates fouling problems. The outer junction is refillable and the electrolyte may be replaced and changed during use. Both the single and double junction styles require a special high temperature gelled reference electrolyte solution. The DL series (detachable lead) electrode is used in the VL-PC probe assemblies P/N 4051001. Order the cable separately.
Unless otherwise specified, the immersion length “A” is 120mm. The immersion length “A” is determined by the immersion depth “H” of the probe, plus 50mm.
1. Standard fixed cable series.
2. Optional removable lead, DL series.
3. Sealed gel-filled Ag/AgCl internal reference cell.
4. Gel-filled outer reference electrolyte.
5. Internal annular ceramic reference junction.
Double junction only.
6. Annular ceramic primary reference junction.
7. pH bulb or platinum sensor.