This series of steam sterilizable electrodes is designed for
economical use. They are constructed very similar to the
standard pH electrodes, have a 10 and 12mm body, and can be
ordered with the desired "H" length. "H" length is
determined by the insertion depth on the under side of the
fermentor headplate to the tip of the probe. Glass
disposable electrodes are available in both polarographic
and galvanic styles to fill all requirements.
The glass DO probes are available for laboratory
fermentation, where sterilization takes place in a separate
autoclave. The disposable Lazar Dissolved Oxygen
Electrodes are compatible with most common oxygen amplifiers
found in fermentation. Glass body oxygen electrodes are
non-temperature compensated and are required to be kept at a
constant temperature. Calibration must be made at the same
temperature as the controlled fermentation. The electrodes
feature external filling tubes. Electrolyte can be added
during use without removing the electrode from the vessel.
The electrode membranes can be replaced very easily.
However, some skill is involved in replacing them.
The polarographic type electrodes are to be used with
Ingold, pHoenix amplifiers or amplifiers from other
manufacturers designed to be used with Ingold DO electrodes.
The galvanic type electrodes are designed to be used with
NBS, LSL Biolafitte and pHoenix Electrode Co. amplifiers.
Specifications
| TYPE | 027IP15L Polarographic | 027BG15L Galvanic | 027NG15L Galvanic |
Cathode | Pt | Ag | Ag |
Anode | Ag/AgCl | Pb | Pb |
Response | 98% 60 sec. | 98% 60 sec. | 98% 60 sec. |
Temp. Compensation | no | no | no |
Temp. Range | 0 - 60 oC | 0 - 60 oC | 0 - 60 oC |
Residual Signal | Less Than 1nA | 0.5-1mV | Less Than 0.4uA |
Output* | 50nA | 40mV | 10-15uA |
* = Medium Saturated With Air
All of the above electrodes have:
Stability (Constant Temperature): Better Than 2%
Sterilization Temp.: 130oC
ORDERING INFORMATION
| Part. No. | "H" Length | Body Diameter | Type | Amplifier and Compatibility | COST | B |
| 027IP15L | "H"-DL | 12mm | Polarographic | pHoenix(R), Ingold(R) and others | $292.00 | B |
| *027BG15L | "H"-DL | 12mm | Galvanic | LSL Biolafitte(R) | $292.00 | B |
| 027NG15L | "H"-DL | 10mm | Galvanic | New Brunswick Scientific(R) | $292.00 | B |
*Must be used with 9001094-010U cable.
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