Dissolved Oxygen Instruments
Replacement stainless steel oxygen probes for fermentation
Check on desired product, then press the buy button below
High Quality Replacement Electrodes for your favorite
dissolved oxygen fermentation equipment at very competitive
Why pay full price when you can get these premium dissolved
oxygen electrodes at a fraction of the price?
- Steam Sterilizable. The steam sterilizable family of dissolved oxygen electrodes
is specifically designed for fermentation where it is
necessary to subject electrodes to repeated steam
- Polarographic/Galvanic. Dissolved oxygen electrodes are available in both
polarographic and galvanic styles to fulfill all
requirements. shop-title electrodes are compatible with most
common O2 amplifiers found in fermentation. Polarographic
electrodes are designed to be used with Ingold IL(R), Cole-
Parmer(R) and Applikon(R) O2 amplifiers, or with other
amplifiers that are designed to be used with Ingold(R)
dissolved oxygen electrodes.
Galvanic electrodes are designed to be used with New
Brunswick Scientific(R), LSL Biolafitte(R) and Applikon(R) O2
Insitu Sterilization. The DO probes are available for laboratory fermentation
where sterilization takes place in a separate autoclave or
industrial applications where sterilization takes place insitu.
Unique Membrane Cartridge. The easily replaced electrode membrane cartridge is a unique
feature of the shop-title 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.
External Filling Tubes. 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(R)
type galvanic dissolved oxygen electrode features easily
replaceable FEP fluoropolymer membranes with external electrolyte
Temperature Compensation. The polarographic dissolved oxygen electrodes are available
with or without automatic temperature compensation. They
are designed to match the Ingold IL (R) oxygen amplifier.
Temperature compensation is not normally required when
calibration is made at the same temperature as the
controlled fermentation temperature with no variation.
* = Medium Saturated With Air
|TYPE || CATH.|| ANODE || TEMP. COMP. || RESID. SIG. || OUT. SIG.* || COST||B|
|025IP25L Polarographic|| Pt || Ag/AgCl || No || Less than 1nA || 50nA || $835.00||B|
|025IP26L Polarographic** || Pt || Ag/AgCl || Yes || Less than 1nA || 50nA || $993.00||B|
|025IP27L Polarographic*** || Pt || Ag/AgCl || Yes || Less than 1nA || 50nA || $993.00||B|
|025BG25L Galvanic || Ag || Pb || No || 0.5-1mV || 40mV || $735.00||B|
|025NG25L Galvanic || Pt || Pb || No || Less than 0.4uA ||10-15uA || $730.00||B|
** = Temperature Compensated Ingold(R) Amplifier
*** = Temperature Compensated pHoenix Electrode Company(R), Cole-Parmer(R), and B&C Electronics(R)
All Stainless Steel Dissolved Oxygen Electrode Types
specified above have:
Response: 98% 60 seconds
Stability (Constant Temperature): Better than 2%
Temperature Range: 0 - 80 oC
Sterilization Temperature: 130 oC
IMPORTANT: When ordering, specify the following in the comments column of
the order page:
1. Original manufacturer and model no. (LSL Biolafitte(R),
pHoenix(R), Applikon(R), New Brunswick Scientific(R), Ingold(R), Cole-
Parmer(R), B&C Electronics(R), NBS(R)).
2. Length of electrode
3. Length of connector cable
Convenient methods of ordering
- Order Online: Simply follow the "buy" buttons on the bottom of product pages.
For your convenience, you may place the order online, but give credit card info by phone or fax. **You may
even place company purchase orders online**.
- Order by phone: 800-824-2066
- Order by fax: 323-931-1434
- Place a regular company purchase order
Operated by Lazar Research Laboratories, Inc.