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Sterilizable Stainless
Steel |
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Features of Stainless Steel DO probes
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 Membrane kit with electrolyte |
 Sample cell |
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Stainless steel autoclavable dissolved oxygen electrode
Dissolved Oxygen Electrodes |
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| Steam sterilizable dissolved oxygen electrodes are
specifically designed for fermentation applications where the
DO electrodes are subjected to repeat steam sterilization. A
unique feature of the Polarographic electrodes is the easily
replaced membrane cartridge. The membrane is of special
construction - a silicon and teflon composite reinforced with
stainless steel mesh. This design is extremely rugged and
ideal for use in extreme conditions such fermenters. The
electrode can be operated without maintenance for 5 to 10
sterilizations, fermentation cycles - or 6 to 8 weeks. The Biolaffitte type galvanic DO electrodes features FEP Teflon membranes The polarographic dissolved oxygen electrodes are availble with or without automatic temperature compensation. They are designed to match the Ingold IL oxygen amplifier. Temperature compensation is not normally required when calibration is made at the same temperature that the Fermenter will be controlled. ( without variation ) |
Specifications Stainless Steel Dissolved Oxygen Probes |
| Type | Polarographic | Polarographic | Polarographic | Galvanic | Polargraphic |
| Model | 0251P25 | 0251P26 | 0251P27 | 025BG25 | 025NG25 |
| Cathode | Pt | Pt | Pt | Ag | Ag |
| Anode | Ag/AgCl | Ag/AgCl | Ag/AgCl | Pb | Pb |
| Response | 98% 60 Secs | 98% 60 Secs | 98% 60 Secs | 98% 60 Secs | 98% 60 Secs |
| Stability | < 2% | < 2% | < 2% | < 2% | < 2% |
| Temperature Compensation |
None | Yes | Yes | None | None |
| Temperature Range |
0 - 80°C | 0 - 80°C | 0 - 80°C | 0 - 80° | 0 - 80°C |
| Sterilization Temperature |
130°C | 130°C | 130°C | 130°C | 130°C |
| Residual Signal |
< 1nA | < 1nA | < 1nA | 0.5 - 1mV | < 0.4 uA |
| Output | 50 nA | 50 nA | 50 nA | 35 +/-10 mV | 10- 15 UA |
Ordering Information DO Electrodes |
| Make up complete part no. as follows Sensor Type + Temperature compensation + length + mounting | ||||||
| Sensor Type | Temperature compensation |
Length mm |
Mounting | |||
| 0251P | Polarographic Stainless Steel |
25 | Non | xxx | 01 | 3/8"
male NPT thread, 14 mm diam body. Fig A4 |
| 025BG | Galvanic LSL Biolaffite, Phoenix and Applikon compatible | 26 | For Ingold | 03 | 3/4"
NPT male thread 19 mm diam body. Fig A3 |
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| 025NG | Polargraphic, Clarke | 27 | Phoenix, Cole Palmer, B&C, Consort- Topac | 05 | M18 x 1.5
male thread (LSL Biolaffite & Applicon Headplate 16 mm diam. Fig A2 |
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| 07 | 19 mm
socket flange 19 mm Diam. Fig A1 |
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| 08 | 25 mm
socket flange 19 mm body. Fig A5 |
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| 10 | 12 mm body
diam straight body. Fig A6 |
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| 11 | 12 mm body
diameter, PG 13.5 thread Fig A6 |
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| Many custom configuration call for details and pricing |