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Trace Oxygen Analyzer KF25 0-100 ppm
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Trace Oxygen Analyzer KF25 0-100 ppm

Available Product Options. Please choose from the menu below | In stock

$5,385.00

Product Summary

PureAire’s KF25 0-100ppm Trace Oxygen Analyzer is ideal for facilities requiring continuous monitoring of 3D printers, glove boxes, nitrogen gas lines, and vacuum chambers, as well as any locations where there is little to no oxygen present. The unit’s sensor mounts directly into the vacuum chamber with the use of a KF-type vacuum fitting. The analyzer is well suited for semiconductor tools, OLED manufacturers, 3D printing, and any industry applications where inert gases, including, but not limited to, nitrogen, helium, and argon, are used in a vacuum. PureAire’s stable, long-life zirconium oxide sensor will last many years in maintained environments without needing to be replaced.

Two-Year Extended Warranty Available for this product in the US, Canada, and Mexico
  • 0-100 ppm Oxygen Sensor
  • Accuracy ± 5% of calibrated range
  • KF25 Flange Connector
  • Operates in a vacuum, 20 Torr
  • Low Maintenance Zirconium Cell
  • 3-year warranty
  • 2 Alarm relays
  • No drift due to environmental or temperature changes
  • 24V DC Power supply included (99197)
  • International Power supply included (99202)

The Trace Oxygen Analyzer measures oxygen from 0 to 100 ppm and is intended for use in a vacuum. The PureAire Trace Oxygen Analyzer is well suited for environments including 3D printers, semiconductor tools, wafer transfer tools, process chambers, cryogenic gloveboxes, inert gases, nitrogen gas lines, and nitrogen generators.

The Trace Oxygen Monitor comes with a 10-foot cable and a 10-plus-year zirconium oxide sensor, which can be placed inside the vacuum for accurate readings. To monitor readings from outside, connect the sensor using a 10-foot cable or K25 flange, then check readings and adjust the environment as necessary.

Features

PureAire’s Trace Oxygen Analyzer can be used indoors or outdoors. Regardless of humidity, barometric pressure, or temperature changes, the oxygen analyzer performs reliably to safeguard your business. Even with a high electromagnetic field, this monitor can provide stable, accurate readings.

PureAire’s oxygen analyzers use a zirconium cell rather than an electrochemical sensor for increased reliability and longer-lasting performance. The zirconium sensor lasts for as long as 10 years with no calibration. Additionally, the zirconium sensor is very fast. In seconds, it can detect low oxygen conditions and sound an alarm to notify staff of low oxygen levels.

A KF-type vacuum fitting lets you mount the sensor directly into the vacuum chamber or into the load locks. By monitoring oxygen levels inside the vacuum, the Trace Oxygen Analyzer improves throughput since there’s no need to use an ambient environment as a medium for measuring oxygen levels.

Rather than disposable sensors, which must be calibrated regularly to perform up to specifications, the Trace Oxygen Analyzer saves time and money. Within three years, the sensor will pay for itself. Customers enjoy an average savings of $475 per year by installing the Trace Oxygen Analyzer instead of another product.

 

Sampling Method Diffusion Oxygen Monitor
(Supplied with KF 25 Fitting)
Gases Detected Oxygen (O2)
Range  0-100ppm oxygen
Accuracy ± 5% of calibrated range
Operating Temperature  -40º to 140ºF (-40º to 60ºC)
Display 3/4″ LCD Digital Display, Back Lit, 3 Alarms LED´s
Sensor Type Zirconium oxide
Sensor Life 10 years under normal operating conditions
Signal Outputs 4-20 mA Analog Output (Active)
Dual-Level Alarm Relay Contacts
Please contact PureAire for the available RS-485 option
Power Requirements 24 VDC
250 mA
Width 5.0 in
127 mm
Height 5.5 in
140 mm
Depth 3.25 in
83 mm
Weight 2.1 lb
0.9 kg
Enclosure Polycarbonate
Calibration Calibration is not required. Periodic span adjustment as needed.
Country of Origin USA
Harmonized Tariff Code 8531.10.0045
Additional O2 Monitor Accessories List Price
8 Channel Controller US (P/N # 99196)
Horn and Strobe  US (P/N # 42002)

Connects to DCS and PLC Controls

The Trace Oxygen Analyzer transmits readings directly to a distributive control system or a programmable logic controller, so you can easily check oxygen concentration levels inside the vacuum.

PureAire’s Oxygen Sensor Cell

Unlike other zirconium cells, which need a reference gas to provide readouts, the Trace Oxygen Analyzer can operate without a reference gas. The Current Limiting Zirconium Oxide Oxygen sensor is superior at detecting low levels of oxygen and can be used in environments that contain no oxygen, such as 100 percent nitrogen environments.

One-Step Sensor Adjustment

PureAire Oxygen Deficiency Monitors require occasional testing with nitrogen to validate the sensor’s response to low oxygen levels. While calibration is not necessary for our monitors to accurately measure oxygen depletion levels1, annual fine-tuning might be needed to ensure the sensor’s span accurately corresponds to the standard 20.9% oxygen concentrations.

PureAire’s Auto-Span not only simplifies the process of adjusting the span of the oxygen sensor but also provides a quick check of the sensor and the monitor’s response to an oxygen-deficient atmosphere. With a press of a button, this feature saves you time and money, protects your facilities and employees, and, most importantly, provides you with the reassurance of consistently reliable performance, making it a valuable addition to your safety measures.

1Please follow your facility’s safety guidelines and state and local regulations regarding calibration requirements for safety equipment.

Trace O2 Monitor System Features

The Trace O2 Analyzer comes in different configurations. Choose between the simple display-only monitor or a fully-featured monitor that comes with user-selectable alarms. No matter which display you choose, you’ll enjoy a sophisticated CPU, reliable performance, and peace of mind.

Trace Oxygen Analyzer 0-100ppm Literature

Trace Oxygen Analyzer 0-100 ppm Manual

Calibration & Repeatability Testing 0-100 ppm

Safety Risks of Oxygen Deficiency

NIH – Protocol for Use & Maintenance of Oxygen Monitoring Devices 2021

Oxygen Analyzer for 3D Printers- Additive Manufacturing

How to Install an O2 Sensor into a 3D Direct Metal Printer (DMP)

How to Install an O2 Sensor in a 3D Direct Metal Printer 

 

Horn/strobe 24VDC Red

horn and strobe

CloudConnect

8-Channel Touch Screen Programmable Controller for O2 or Gas Monitors

Low-PPM Monitoring

Designed for applications requiring low oxygen concentration oversight.

Continuous Visibility

Supports ongoing monitoring for stable operating conditions.

Controlled Environment Fit

Well-suited for glove boxes, chambers, and inert-gas systems.

Supports Quality Control

Helps maintain consistent conditions for repeatable results.

Oxygen deprivation is a silent killer. Oxygen-depleting gases, such as nitrogen, argon, and helium, are odorless and colorless, making leaks impossible to detect, unless appropriate monitoring is in place.

PureAire oxygen deficiency monitors can be used to monitor nitrogen, argon, and helium. Carbon dioxide can also be monitored with PureAire’s dual oxygen/carbon dioxide monitor.

PureAire uses a proprietary, non-depleting, zirconium oxide sensor that will last up to 10 years in a normal environment without needing to be replaced.

PureAire’s sensors do not operate under partial pressure, meaning that a PureAire sensor will not need to be adjusted to account for different elevations. Additionally, the sensors will not drift due to changes in barometric pressure.

In contrast, other gas detection companies use depleting, electrochemical sensors. These sensors, because they are depleting, operate for 1-2 years before needing to be replaced. Electrochemical sensors do not offer long-term solutions to companies committed to safety.

PureAire sensors are built to last 10 years. Often, the sensors work much longer. In fact, some of our first customers who started using PureAire products in 1997 report that the sensors are still in operation today.

On the other hand, an oxygen monitor that uses a depleting, electrochemical sensor is like a battery in that, as the sensor depletes, it begins to lose its power and responsiveness. In order to operate accurately, electrochemical sensors must be calibrated frequently.

PureAire sensors are made of non-depleting zirconium oxide, and calibration is typically not required.

However, a visual check of the monitor should be done once a year to verify that the sensor is functioning properly, and span adjustments should be done, as necessary. The sensor requires periodic testing with nitrogen to verify the sensor’s response to low oxygen levels.

In contrast, electrochemical sensors, because they deplete over time, will need to be calibrated every 2-3 months and totally replaced every 1-2 years.

Switching to a PureAire non-depleting, zirconium oxide sensor will save you time and money, while ensuring the safety of your workers and facility.

Electrochemical sensors offered by other gas detection companies lose accuracy over time and must be calibrated. Calibration recharges and resets the monitor to get an accurate reading. It is important to note that an electrochemical sensor can only be calibrated a finite number of times before it must be discarded.

PureAire’s non-depleting zirconium oxide sensor will not experience drift. Oxygen sensors from PureAire will provide long-lasting, reliable, and accurate monitoring for an average of10+ years.

The oxygen monitor covers an area of approximately 692 square feet when mounted on a wall and should be placed no more than 21 feet from potential leak sources such as gas lines, gas cylinders, or any areas where a gas leak might be expected to occur.

To ensure safety, the maximum distance between two monitors mounted to the same wall, should not exceed 30 feet. However, since cryogenic gases, such as argon, helium, and nitrogen, are unpredictable, we encourage you to contact PureAire for additional guidance specific to your needs.

In most circumstances, PureAire recommends that oxygen monitors be installed 3-5 feet away from gas cylinders or cryogenic gas lines. To enable employees to see the monitor display and verify its performance, PureAire recommends mounting an oxygen monitor 3-5 feet off the ground.

There are other options for mounting an oxygen monitor. For instance, PureAire sensors can sample the air from up to 100 feet away, or be installed within a glovebox, freezer, sealed chamber, or even underground. PureAire monitors can also work in environments that require KF-25 flanges, as well as in nitrogen/argon enriched environments.

PureAire’s Sample Draw Monitors pull a sample flow at a rate of 250 ccs per minute. We recommend using 1/4” OD x 3/16” ID polypropylene sample tubing. Using this internal tubing dimension, to calculate transport (response) time, add 2 seconds per foot of sample tubing. For example, if the sample tube is 10 feet long, the initial response time would be 20 seconds (10ft x 2seconds=20seconds) at 15 feet the response time would be 30 seconds (15ft x 2seconds=30seconds), etc.

The response time when using the entire 100 feet of sample tube will take 3.5 minutes (100ft x 2seconds=200seconds or 3.5minutes) for the sample to reach the monitor.