FERMENTATION PRODUCTS

Stainless Steel Dissolved Oxygen Electrodes
Sealed Steam Sterilizable Electrodes for fermentation pH/ORP
Plastic Body DO Electrodes
Miniature Dissolved Oxygen Electrode
Glass Body Disposable O2 Electrodes
Control Instrumentation for fermentation

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Stainless Steel Dissolved Oxygen Electrodes
High Quality Replacement Electrodes for your favorite
dissolved oxygen fermentation equipment at very competitive
prices.

Why pay full price when you can get these premium dissolved
oxygen electrodes at a fraction of the price?

Features
*The steam sterilizable family of dissolved oxygen electrodes
 is specifically designed for fermentation where it is
 necessary to subject electrodes to repeated steam
 sterilization.
*Dissolved oxygen electrodes are available in both
 polarographic and galvanic styles to fulfill all
 requirements.  LAZAR electrodes are compatible with most
 common O2 amplifiers found in fermentation.  Polarographic
 electrodes are designed to be used with Ingold IL , Cole-
 Parmer  and Applikon  O2 amplifiers, or with other
 amplifiers that are designed to be used with Ingold
 dissolved oxygen electrodes.
*Galvanic electrodes are designed to be used with New
 Brunswick Scientific, LSL Biolafitte and Applikon O2
 amplifiers.
*The DO probes are available for laboratory fermentation
 where sterilization takes place in a separate autoclave or
 industrial applications where sterilization takes place in-
 situ.
*The easily replaced electrode membrane cartridge is a unique
 feature of the LAZAR polarographic and NBS galvanic
 dissolved oxygen electrode.  The membrane is of special
 construction -- a silicone and fluoropolymer composite,
reinforced
 with stainless steel mesh.  This unique membrane is very
 rugged and allows for repeated sterilization without damage,
 allowing it to withstand severe conditions.  The electrode
 operates without maintenance for 5 to 10 sterilizations,
 fermentation cycles or, in terms of time, for 6 to 8 weeks.
*The electrode features external filling tubes.  The
 electrolyte can be replenished or filled during use without
 removal from the vessel.  The electrode is constructed
 internally with a pressure compensated electrolyte chamber.
*The filling tubes on this electrode are closed and kept
 inside the probe during sterilization and use.  Biolafitte 
 type galvanic dissolved oxygen electrode features easily
 replaceable FEP fluoropolymer membranes with external electrolyte
 filling tubes.
*The polarographic dissolved oxygen electrodes are available
 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 as the
 controlled fermentation temperature with no variation.

ORDERING INFORMATION

Specifications
                                 TEMP.      RESIDUAL
TYPE            CATHODE  ANODE   COMP.      SIGNAL     OUTPUT*

ZDIP 15
Polarographic   Pt    Ag/AgCl    No    Less than 1nA   50nA

ZDIP 16
Polarographic   Pt    Ag/AgCl    Yes   Less than 1nA   50nA

ZDIP 17Pt
Polarographic   Pt    Ag/AgCl    Yes   Less than 1nA   50nA

ZDBG 15
Galvanic        Ag    Pb         No    0.5-1mV         40mV+/-5mV

ZDNG 15
Galvanic        Pt    Pb         No    Less than 0.4uA 10-15uA

* = Medium Saturated With Air

All Stainless Steel Dissolved Oxygen Electrode Types
specified above have:
     Response:  98% 60 seconds
     Stability (Constant Temperature):  Better than 2%
     Temperature Range:  0 - 80C
     Sterilization Temperature:  130C

When ordering, specify the following:

1. Original manufacturer and model no. (LSL Biolafitte,
pHoenix, Applikon, New Brunswick Scientific, Ingold, Cole-
Parmer, B&C Electronics, NBS).

2. Temperature compensation - yes/no

3. Length (specify)

4. Galvanic or polarographic

5. Type of probe from table above

6. Type of connector cable needed

If you have any questions please feel free to contact us.


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SEALED STEAM STERILIZABLE ELECTRODES FOR FERMENTATION pH/ORP
Sealed Non-Flowing Steam Sterilizable pH and Redox Electrodes Sealed Autoclave Electrodes for Bench Top Fermentors Sealed In-Situ Steam Sterilizable Electrodes for steam Sterilized In-place Fermentor
Sealed Non-Flowing Steam Sterilizable pH and Redox Electrodes
The sealed series of combination pH and redox electrodes encompasses the most recent design features in sealed electrode technology. The electrodes require no electrolyte replenishment during the life of the electrode. They do not require pressurization during steam sterilization, minimizing maintenance time and cost. These electrodes are designed to withstand repeated steam sterilization up to 130C. SEALED AUTOCLAVABLE ELECTRODES FOR BENCH TOP FERMENTORS The autoclavable series of sealed electrodes is constructed with a double sealed reference reservoir. They are factory sealed and contain specially formulated high temperature KNO3 electrolyte, eliminating poisoning caused by the presence of certain ions, such as sulfide. The electrodes feature a large surface area annular ceramic junction, eliminating clogging that normally occurs in most electrodes used in fermentation. Sealed autoclavable electrodes have many advantages over the refillable type. These include reduction in maintenance costs and shorter down time after auto-claving. Sealed electrodes will operate under vacuum or pressure. The electrodes are designed to fit all standard benchtop 12mm electrode probe assemblies or rubber stoppers. In ordering these electrodes, specify the immersion length "A", determined by the immersion depth "H" of the probe plus 70mm. (Except Ingold probe 761-31, A = H + 50mm). FEATURES *No electrolyte refilling during use. *Double sealed reference reservoir. *The electrode requires low maintenance, saving time and cost. SEALED IN-SITU STEAM STERILIZABLE ELECTRODES FOR STEAM STERILIZED IN-PLACE FERMENTOR Sealed In-Situ Steam Sterilizable Electrodes This series of in-situ sealed steam sterilizable electrodes is designed for use in fermentors and reaction vessels where only the tip of the electrode is steam sterilizable inside the fermentor. The electrodes are designed to be used in existing Ingold type pressurized electrode probe assemblies. The standard cable series of electrodes will fit Ingold probe assemblies 763-35, 764-31, 764, 765, 768-35, and 769- 35. When these electrodes are used with the probe assemblies, no pressurization is required. The electrodes feature a sealed double junction reservoir with a specially formulated high temperature KNO3 electrolyte, eliminating poisoning caused by the presence of certain ions, such as sulphide. The reference junction is a large surface annular ceramic junction. This type of junction eliminates clogging that normally occurs in most electrodes used in fermentation. The standard cable for pH electrodes is one meter low-noise cable without connector. The DL series (detachable lead) electrode is used in the pHoenix Probe Assembly Part No. 4051021-S. Order the cable separately unless otherwise specified. The immersion length "A" is 120 mm. The immersion length "A" is determined by the immersion length "H" of the probe plus 50 mm. FEATURES *Pressurization is not required during sterilization. *No electrolyte refilling is required during the life of the electrode. *The electrode requires low maintenance, saving time and cost. ORDERING INFORMATION ELECTRODES SA73792-"A"-DL Sealed double junction combination pH electrode. -5 to 130C, 0 to 13 pH. SA79861-"A"-DL Sealed double junction combination redox electrode. -5 to 130C. 8001061 K-9 Ingold Adapter For NBS Microferm and Magnaferm fermentors, indicate "M" succeeding part number (i.e. SA73792M-420-K9) When ordering specify: A. For NBS Microferm and Magnaferm fermentors indicate "M" succeeding part number (i.e. SA73792M-420-K9) B. Determine the immersion length "A" in mm and order as follows for 220 mm (i.e. SA73792-220-K9). C. Electrode cable must be ordered separately with proper pH meter connector. SPECIFICATIONS Sealed Combination Electrodes, Lead Type: Designed to fit Ingold probe assemblies 764-31, 763-35, 764, 765, 768-35, 769-35. Electrodes are standard with 39 inch low-noise cable without connector. pH Electrodes: S773792-"A"-X39 Combination pH electrode, sealed, double reference reservoir, GX2 glass, -5 to 135C, up to 150 psi. S774713-"A"-X39 Combination pH electrode, sealed, double reference reservoir, GX3 high pH glass, 40 to 135C, up to 150 psi. Redox Electrodes: S779861-"A"-X39 Combination redox electrode, sealed, double junction reference reservoir, -5 to 135C, up to 150 psi. Sealed Combination Electrodes With Detachable Leads: Designed with a detachable cable and featuring the same specifications as the above fixed-cable in-situ sealed electrodes. The electrodes encompass detachable leads designed to be used with the pHoenix 4051021-S pressure cell converter. pH Electrodes: S773792-"A"-DL Combination pH electrode, sealed, double reference reservoir, detachable lead, GX2 glass, -5 to 135C, up to 150 psi. S774713-"A"-DL Combination pH electrode, sealed, double reference reservoir, detachable lead, GX3 high pH glass, 40 to 135C, up to 150 psi. Redox Electrodes: S779861-"A"-DL Combination redox electrode, sealed, double reference reservoir, detachable lead, -5 to 135C, up to 150 psi. Return Top of Page Get Additional Information on Product How to Order
PLASTIC BODY DO ELECTRODES This series of cost-efficient, ruggedized DO electrodes is constructed with an outer shell of black delrin plastic and easily replaceable sensing membranes. All are designed to work primarily with portable Dissolved Oxygen Meters. These probes are custom manufactured to provide specific current outputs as required by different DO meters. Temperature compensation and/or special outer body designs are available upon request. Type Polarographic Cathode Pt or Au Anode Ag/AgCl Response 98% within 60 seconds Stability Better than 2% (constant temp.) Temp. Range 0-50C Residual Signal Less than 1nA Output 50nA to 1.5uA in air saturated medium Ordering Information Order Cat. No. DO-166 PLAS Return Top of Page Get Additional Information on Product How to Order
MINIATURE DISSOLVED OXYGEN ELECTRODE Miniature construction offers a DO electrode with 12mm OD body. The 12mm OD 316L stainless tell body will fit all standard pH electrode holders found in small fermentors. These polarographic electrodes are compatible with most common polarographic DO amplifiers. The DO probes are designed to be autoclaved. They feature a detachable electrode cable and easily replaceable membrane. The membrane is constructed of a silicon and fluoropolymer composite, reinforced with stainless steel mesh. The DO probes are non-temperature compensated. Temperature compensation is available on special order. Temperature compensation is not required when calibration is made at the same temperature as the control fermentation temperature with no variation. SPECIFICATIONS 025IP18 025NG18 Type Polarographic Galvanic Cathode Pt Ag Anode Ag/AgCl Pb Response 98% 60 seconds 98% 90 seconds Stability* better than 2% better than 2% Temp. Compensation no no Temp. Range 0 to 60C 0 to 60C Sterilization Temp. 130C 130C Residual Signal less than 1 nA less than 0.4 uA Output** 50 nA 10 to 15 nA * = constant temperature ** = medium saturated with air ORDERING INFORMATION Polarographic Catalog No. "H" Length 025IP18-150-10 150 025IP18-180-10 180 025IP18-220-10 220 025IP18-300-10 300 Galvanic Catalog No. "H" Length 025NG18-150-10 150 025NG18-180-10 180 025NG18-220-10 220 025NG18-300-10 300 Return Top of Page Get Additional Information on Product How to Order
GLASS BODY LOW COST DISPOSABLE O2 ELECTRODES 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 pHoenix 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 027IP15 027BG15 027NG15 TYPE Polarographic Galvanic Galvanic Cathode Pt Ag Ag Anode Ag/AgCl Pb Pb Response 98% 98% 98% 60 seconds 60 seconds 60 seconds Temp. Compensation no no no Residual Signal Less Than 1nA 0.5-1mV Less Than 0.4uA Output* 50nA 40mV+/-5mV 10-15uA * = Medium Saturated With Air All of the above electrodes have: Stability (Constant Temperature) Better Than 2% Temp. Range: 0-60C Sterilization Temp.: 130C ORDERING INFORMATION "H" Body Amplifier Part. No. Length Diameter Type Compatibility 027IP15 "H"-DL 12mm Polarographic pHoenix, Ingold and others *027BG15 "H"-DL 12mm Galvanic LSL Biolafitte 027NG15 "H"-DL 10mm Galvanic New Brunswick Scientific *Must be used with 9001094-010U cable. Return Top of Page Get Additional Information on Product How to Order
CONTROL INSTRUMENTATION FOR FERMENTATION The instruments below can be used with LAZAR fermentation electrodes described above for complete monitoring of important fermentation parameters. (1) P/N PH565.1 pH module panel mount (2) P/N MV565.1 Redox module panel mount (3) P/N DO545.1 Oxygen Polarographic module panel mount (4) P/N DO565.1 Oxygen Galvanic module panel mount (5) P/N A565.1 Antifoam module panel mount (6) P/N T545.1 Temperature module panel mount (7) P/N PH365.1 pH controller Lab top (8) P/N OD265.1 Oxygen Controller Lab top Cabinets for Modules BC912 Cabinets for two modules BC913 Cabinets for three modules BC914 Cabinets for four modules Return Top of Page Get Additional Information on Product How to Order