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Brand: Systech
Systech ZR810 Zirconia Oxygen Analyzer — O2 in Nitrogen, 0-10/0-100ppm & 0-10% O2
Description
Overview
The Systech ZR810 Zirconia Oxygen Analyzer, configured here for oxygen measurement in nitrogen gas streams and waste nitrogen lines, is a panel-mounted, continuous process oxygen analyzer built around Systech’s precision zirconium dioxide (ZrO2) electrochemical sensor. This configuration covers trace-to-percent oxygen detection with three switchable ranges — 0–10 ppm, 0–100 ppm, and 0–10% O2 in N2 — making it suited to nitrogen purity verification and waste-nitrogen monitoring in industrial gas, electronics, and inert-atmosphere processing facilities. Seven Star LLC supplies the Systech ZR810 to laboratories, gas plants, and process facilities across Oman and the GCC needing dependable, fast-responding oxygen measurement on nitrogen service.
Nitrogen used for blanketing, purging, or inerting is only as good as its oxygen content allows. Even small oxygen ingress into a nitrogen supply can compromise inert atmosphere processes such as soldering, heat treatment, or product blanketing, leading to oxidation defects, contamination, or safety risk. The ZR810’s zirconia sensor technology, shared across Systech’s ZR800 analyzer series, is engineered specifically to catch this kind of oxygen ingress quickly and reliably, with a local panel-mounted indicator giving operators an immediate, on-the-spot reading.
Operating Principle
The Systech ZR810 uses a high-purity, high-density stabilized zirconia ceramic sensing cell operating at high temperature, where the zirconia electrolyte becomes conductive to oxygen ions. A reference gas on one side of the cell and the sample nitrogen stream on the other create an oxygen partial-pressure differential across the cell; this differential drives oxygen ion migration through the zirconia lattice, generating a DC voltage proportional to the oxygen concentration ratio. A high-speed microprocessor linearizes this logarithmic cell output into a direct, stable digital reading on the analyzer’s local indicator, with a 4–20 mA output available for integration into a plant control or monitoring system. The ZR800 platform this ZR810 configuration is built on delivers a response time of 90% of a step change within approximately 5 seconds, among the fastest available in zirconia-based oxygen analysis.
Engineering Design
Built for continuous industrial duty, the Systech ZR810 is offered in panel-mount, bench-top, and wall-mount configurations, with this unit specified as panel-mounted for integration into a control cabinet or local instrument panel alongside a mains power supply specified at quotation. The instrument’s microprocessor-controlled menu interface allows operators to configure alarm setpoints, calibration intervals, and output scaling to match a specific nitrogen monitoring application without specialist analytical training. The zirconia sensor itself is a low-maintenance, durable component designed for long service life under continuous exposure to nitrogen and waste-nitrogen gas streams, and an IP66 / NEMA 4X cabinet option is listed for the ZR800 series; confirm enclosure rating at quotation.
Key Features
Configured specifically for oxygen-in-nitrogen service, this ZR810 combines Systech’s proven zirconia sensor platform with the range flexibility and local readout that nitrogen purity monitoring applications require.
- Precision zirconium dioxide (ZrO2) zirconia sensor cell for accurate, stable oxygen detection
- Switchable measurement ranges: 0–10 ppm, 0–100 ppm, and 0–10% O2 in N2
- Response time of 90% of step change within approximately 5 seconds
- Local panel-mounted digital indicator for immediate on-site oxygen readings
- Mains power supply (specified at quotation) with 4–20 mA output for control system integration
- ±1% of full-scale accuracy across the selected measurement range
- Enclosure rating confirmed at quotation (IP66 cabinet option in ZR800 series)
Applications
The Systech ZR810 configured for O2 in N2 is used for nitrogen gas purity verification at the point of use, waste-nitrogen line monitoring in industrial gas production and distribution, inert-atmosphere blanketing verification in chemical and petrochemical storage, nitrogen purge quality checks ahead of vessel entry or maintenance, and process nitrogen quality assurance in electronics, semiconductor, food packaging, and metal heat-treatment facilities where oxygen ingress into the nitrogen supply directly affects product quality or process safety.
Technical Specifications
| Manufacturer | Systech (Industrial Physics) |
| Model | ZR810 |
| Sensor Technology | Stabilized zirconium dioxide (ZrO2) electrochemical cell |
| Application Gas | Oxygen in nitrogen (N2) and waste nitrogen gas |
| Measurement Ranges | 0–10 ppm / 0–100 ppm / 0–10% O2 in N2 |
| Accuracy | ±1% of full scale |
| Output Signal | 4–20 mA |
| Power Supply | Specified at quotation |
| Mounting | Panel-mounted, with local digital indicator |
| Response Time | 90% of step change within approx. 5 seconds |
| Enclosure Rating | Confirmed at quotation |
Why Choose Seven Star LLC for Systech Zirconia Oxygen Analyzers
A zirconia oxygen analyzer’s measuring range has to be matched precisely to your actual trace-level or percent-level monitoring requirement, since a ppm-range instrument configured for a percent-level application, or vice versa, delivers resolution that is either wastefully fine or practically useless for your process. Seven Star LLC works with your gas quality and process engineering teams to confirm the correct ZR810 range configuration (0-10/0-100ppm or 0-10% O2) for your specific nitrogen or specialty gas monitoring point before order confirmation.
Seven Star LLC is an experienced supplier of Systech process oxygen analyzers across Oman and the GCC, helping gas plants, electronics manufacturers, and process facilities specify the correct ZR810 range and configuration for their specific nitrogen or specialty gas application. Our team supports commissioning guidance, calibration scheduling, and fast regional delivery to keep critical nitrogen quality monitoring in continuous operation. We also support electronics manufacturing and specialty gas facilities across Muscat, Sohar, and Salalah with cell replacement planning, since zirconia sensing cells are consumable components with a finite service life that benefits from proactive rather than reactive replacement.
Get a Quote
Contact Seven Star LLC for pricing, lead time, and configuration support on the Systech ZR810 oxygen analyzer for nitrogen service, or to discuss a customized range, mounting, or output configuration for your process.
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Datasheets & Documents
- Datasheet Systech ZR810 Zirconia Oxygen Analyzer Datasheet Download
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About brand
Systech, also labelled Systech Illinois, is an oxygen measurement company founded in 1983 and part of Industrial Physics. Its process analyzers measure oxygen from trace levels to percent in industrial gases, and its laboratory instruments test packaging.
Seven Star LLC is an independent supplier in Muscat. We list Systech analyzers and spare parts for gas plants and laboratories in Oman and the GCC.
Systech product series
The ZR810 zirconia oxygen analyzer is listed for oxygen in nitrogen with ranges of 0-10 and 0-100 ppm and 0-10% O2, and in a version for argon and hydrogen.
Spare parts for the EC91 oxygen transmitter include the 091-024 main amplifier PCB and the 090182 trace stainless steel oxygen cell. Zirconia sensors give fast response and long life, but are not suitable where combustible gases would react at the hot sensor, so the sample gas composition must be checked.
Where Systech analyzers are used
Purity checks of nitrogen and argon, inert gas blanketing, gas production plants and laboratories.
Ordering Systech products: what we need
Send the analyzer model and range, the sample gas, pressure and flow, or the part number of the spare being replaced.
Browse Systech products by category: Gas Analyzer Systems, Gas Analyzer Accessories.
Related products
Frequently Asked Questions
This ZR810 configuration measures trace and low-percent oxygen contamination in nitrogen (N2) gas and waste nitrogen streams, across 0-10ppm, 0-100ppm, and 0-10% O2 ranges.
Nitrogen used for blanketing, purging, or inert atmosphere processing must stay free of oxygen ingress, since even small oxygen contamination can cause oxidation defects, product quality loss, or safety risk in inert-atmosphere processes.
The ZR810 reaches 90% of a step change in oxygen concentration within approximately 5 seconds, among the fastest response times available in zirconia-based oxygen analysis.
The ZR810 provides a standard 4-20 mA output signal suitable for integration with a plant DCS, PLC, or standalone monitoring and alarm system, alongside its local digital indicator.
The ZR800 series offers an IP66 cabinet option; enclosure rating is confirmed at quotation, and it is engineered for continuous operation in demanding industrial gas-handling environments.

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