Teledyne B71875 InstaTrace Oxygen Sensor

Description

Overview

The Teledyne B71875 InstaTrace is a Micro-fuel Cell (MFC) electrochemical oxygen sensor engineered for general-purpose trace oxygen analysis in inert gas and hydrocarbon streams. Teledyne’s patented InstaTrace construction eliminates the single greatest inconvenience of conventional electrochemical trace oxygen sensors — the multi-hour wait for the cell to stabilize after installation — reducing recovery time to low ppm levels from several hours down to as little as 30 minutes.

Backed by genuine manufacturer documentation, Seven Star LLC proudly supplies the B71875 InstaTrace oxygen sensor to petrochemical plants, gas processing facilities, and industrial laboratories across the Sultanate.

Operating Principle

The B71875 uses Teledyne’s Micro-fuel Cell technology, an electrochemical transducer highly specific to oxygen that generates a current proportional to the partial pressure of oxygen diffusing across its sensing membrane. Unlike zirconia or paramagnetic trace oxygen methods, the MFC sensor requires no external heating element, no reference or zero gas for calibration, and consumes its internal electrolyte gradually and predictably over a defined service life, giving operators a simple, drop-in replacement cycle without recalibration infrastructure.

The InstaTrace innovation specifically addresses the recovery period that occurs whenever a new sensor is installed and briefly exposed to ambient air during the swap. Conventional MFC cells can take several hours to recover to stable low-ppm output after such exposure; the B71875’s patented construction cuts this recovery period to roughly 30 minutes or less, meaning an analyzer can be returned to reliable trace-level service almost immediately after a cell change — a critical advantage in continuous process monitoring where extended analyzer downtime is not acceptable.

Engineering Design of the Teledyne B71875

The B71875 is supplied as a complete final assembly (standard configuration) designed to install directly into the cell block of Teledyne’s trace oxygen analyzer platforms, including the 3000T Series, 316 Series, 311 Series, and 3160 Series instruments via the appropriate retrofit cell holder kit. The sensor’s delicate Teflon sensing membrane sits beneath a protective screen, and installation requires only that the cell be placed screen-side down onto the holder, aligned with the block’s locating pin, and clamped into position to puncture the factory protective seal and form a gas-tight fit.

Because the sensing surface is fully sealed until the moment of installation, and the double-bagged storage packaging protects the cell from premature air exposure, the B71875 maintains long shelf life prior to use while still delivering the InstaTrace rapid-recovery benefit once installed. The sensor requires no maintenance beyond eventual end-of-life replacement, is unaffected by variations in sample flow rate, shock, vibration, or mounting position, and supports calibration intervals of two to four weeks or longer under stable process conditions.

Key Features

The Teledyne B71875 InstaTrace oxygen sensor delivers fast, maintenance-free trace oxygen measurement for demanding process analyzer applications:

  • Reaches stable low-ppm oxygen readings within approximately 30 minutes of installation.
  • Requires no external zero gas, reference gas, or heating element for calibration.
  • Provides completely maintenance-free operation throughout the sensor’s service life.
  • Remains unaffected by sample flow rate variation, shock, vibration, or mounting orientation.
  • Supports calibration intervals of two to four weeks or longer under stable conditions.
  • Retrofits directly into Teledyne 3000T, 316, 311, and 3160 Series trace oxygen analyzers.
  • Ships in double-bagged storage packaging to preserve shelf life prior to installation.
  • Carries a standard 6-month sensor warranty from date of installation.

Industrial Applications

The B71875 is widely used for trace oxygen monitoring in inert gas blanketing systems, hydrocarbon purity verification, nitrogen purge quality control, and specialty gas analysis across petrochemical plants, refineries, and industrial gas facilities. Its rapid InstaTrace recovery makes it especially valuable in continuous process analyzers where extended downtime during routine cell replacement would otherwise disrupt safety-critical inert gas monitoring or product purity verification.

Working closely with plant engineers in the region, Seven Star LLC distributes the B71875 InstaTrace sensor to petrochemical operators, gas processing facilities, and analytical laboratories throughout Muscat, the Sohar and Salalah economic zones, and the wider Sultanate of Oman.Seven Star LLC supplies this item on request with the manufacturer documentation, and availability and lead time are confirmed at quotation.

Technical Specifications

The table below summarizes the key specifications of the Teledyne B71875 InstaTrace oxygen sensor:

Parameter Specification
Model Teledyne B71875 (InstaTrace)
Sensor Type Micro-fuel Cell (MFC) electrochemical, trace oxygen
Recovery Time After Installation Approximately 30 minutes or less
Calibration No zero/reference gas required; 2–4 week (or longer) intervals
Compatible Analyzers 3000T, 316, 311, 3160 Series (via retrofit kit)
Application Trace O2 in inert gas and hydrocarbon streams
Sensitivity Below 1 ppm oxygen
Warranty 6 months standard
Storage Double-bagged for extended shelf life

Request a Quote for Teledyne B71875 InstaTrace Oxygen Sensor

Seven Star LLC supplies the Teledyne B71875 InstaTrace oxygen sensor on request across Oman and the GCC, with lead time confirmed at quotation. Contact our instrumentation division for a formal RFQ, a technical datasheet on request, or application engineering support for your trace oxygen analyzer maintenance program. With fast quotation turnaround and technical support, Seven Star LLC supplies the Teledyne B71875 on request with manufacturer documentation and local technical support.

Seven Star LLC supplies the Teledyne B71875 on request across Oman for petrochemical and gas processing analyzer maintenance teams. Order the Teledyne B71875 today for same-week dispatch and minimal analyzer downtime.

Specify the Teledyne B71875 with confidence, knowing genuine factory documentation ships with every sensor from Seven Star LLC.

Related Products

Also available: Teledyne C91743A PC Board Assembly for MDL 3000 Gas Analyzer

Datasheets & Documents
  • PDF Brochure Teledyne Micro-fuel Cell Sensor Brochure Download
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About brand

Two different product lines sit behind the Teledyne name on this page: process gas analyzers and sensors from Teledyne Analytical Instruments, and fixed gas and flame detectors from Teledyne Gas and Flame Detection, the home of the Detcon name. Seven Star LLC lists Teledyne oxygen and moisture analyzers, analyzer circuit boards, replacement sensors and Detcon detectors, and sources them by part number for plants and utilities in Oman.

Teledyne analyzers, sensors and Detcon detectors listed

The listing is weighted toward spare parts for installed analyzers:

  • 3000 series oxygen analyzers, such as the 3000RS, with PCB assemblies for Model 3000 and 3020M units and the P01962 power supply, which replaces the obsolete B70284
  • 8800B trace moisture analyzer from the 8800 series
  • B71875 InstaTrace oxygen sensor
  • Liquid analysis parts: the CP03030 pH sensor cartridge and the S02312 free chlorine sensor
  • Fire and gas: the Spyglass SG50-F-IR3 triple IR flame detector, listed here under Teledyne Detcon, and the iTrans 2 fixed gas monitor

Where Teledyne analyzers and Detcon gas detectors are used

Teledyne oxygen analyzers measure trace and percent oxygen in nitrogen, hydrocarbon and inert gas streams, for example on air separation units, blanketing systems and gas pipelines. Trace moisture analyzers serve instrument air and dry gas service. Teledyne Detcon gas detectors and flame detectors are used on wellsites, compressor stations, tank farms and water treatment plants in the GCC, wired to a controller or the plant safety system.

Ordering Teledyne parts: what we need

Teledyne Analytical Instruments parts are identified by a letter and number code, such as C70043A or B71875, and by the analyzer model and serial number. Send all of them. Oxygen sensors are selected by class for the background gas and range, so name the sample gas composition and the analyzer model. For a Teledyne Detcon gas detector or flame detector, send the model and full part number from the label, the target gas and range, output, and the area approval required. We check each code against the manufacturer's documentation and propose the listed replacement when a part has been superseded.

Frequently Asked Questions

How fast does the Teledyne B71875 stabilize after installation?
The patented InstaTrace construction typically reaches a stable low-ppm oxygen reading within about 30 minutes of installation, compared to several hours for conventional trace oxygen cells.
Does the B71875 require zero or reference gas for calibration?
No. The Micro-fuel Cell sensor requires no zero gas and needs no external calibration gas supply, simplifying maintenance and reducing consumable costs for continuous trace oxygen monitoring.
Which analyzer platforms accept the B71875 sensor?
The B71875 retrofits into Teledyne 3000T Series, 316 Series, 311 Series, and 3160 Series trace oxygen analyzers using the manufacturer-specified retrofit cell holder kit.
Can the B71875 replace an older-generation Teledyne oxygen cell?
Yes. Teledyne designed InstaTrace retrofit kits specifically so existing Micro-fuel Cell based analyzers already in service can be upgraded with the B71875 sensor and its faster recovery characteristics.
Is Seven Star LLC an experienced supply partner for Teledyne products?
Yes, Seven Star LLC is an experienced supplier of Teledyne in Oman and the GCC, supplying genuine products on request with manufacturer documentation and local technical support.