FERMENTATION PRODUCTS

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 þ, Cole-
 Parmer þ and Applikon þ 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 þ
 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 þ 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 - 80øC
     Sterilization Temperature:  130øC

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
130øC.



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.
     -5ø to 130øC, 0 to 13 pH.

SA79861-"A"-DL
     Sealed double junction combination redox electrode.
     -5ø to 130øC.

8001061
     K-9 Ingold Adapter

For NBS Microferm þ and Magnaferm þ fermentors, indicate "M"
succeeding part number (i.e. SA73792M-420-K9)

When ordering specify:

A.   For NBS Microferm þ and Magnaferm þ 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 135øC, up to 150 psi.

S774713-"A"-X39
     Combination pH electrode, sealed, double reference
     reservoir, GX3 high pH glass, 40 to 135øC, up to 150
     psi.

Redox Electrodes:

S779861-"A"-X39
     Combination redox electrode, sealed, double junction
     reference reservoir, -5 to 135øC, 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 135øC, up
     to 150 psi.

S774713-"A"-DL
     Combination pH electrode, sealed, double reference
     reservoir, detachable lead, GX3 high pH glass, 40 to
     135øC, up to 150 psi.

Redox Electrodes:

S779861-"A"-DL
     Combination redox electrode, sealed, double reference
reservoir, detachable lead, -5 to 135øC, up to 150 psi.


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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           0-50øC
Residual Signal       Less than 1nA
Output                50nA to 1.5uA in air saturated medium

Ordering Information
Order Cat. No. DO-166 PLAS


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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 60øC        0 to 60øC
Sterilization Temp.   130øC            130øC
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


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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:                0-60øC
Sterilization Temp.:        130øC

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.

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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

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