• Faster accurate on line oxygen monitoring.
• Measures Oxygen 1ppm to 99.9%
• Suitable for use with most nitrogen purge type applications for monitoring residual oxygen levels
• Self contained includes sample pump and hose.
• Built in alarms for low and high concentration
• Optional analog output modules 0-2,5,10 VDC or 4-20mA
• Start stop from external trigger
• Includes calibration certificate valid for 12 months
• Robust industrial design ready for 7x24 work period.
• RS232 option.

Introduction to the HP6D
The HP6 is a sensitive oxygen analyzer designed for monitoring oxygen content in a variety of process control applications. The instrument is particularly suitable for measuring the residual oxygen in inert gas purge systems such as process ovens, soldering machines and packaging systems. The instrument works by drawing a small sample of the target gas into a special zirconium detector. The analysis is very fast and the results are displayed on the LED display within a few seconds. The HP6 is self contained it includes everything you need to set up an oxygen monitoring system.

In-line operation
The HP6 has been designed for ease of use, either as a stand alone system or as a part of another control system. Gas is fed to the unit with a sample hose. The sample line supplied is a 5 mm OD oxygen impermeable hose which is connected to the measurement zones of the environment to be monitored. The sample is drawn into the instrument at a constant rate by a built in sample pump. The Oxygen concentration is displayed continuously.

Sensitive, accurate and fast
The HP6 is very sensitive, the detector responds in 50 mS and is sensitive down to ppm levels, yet does not saturate or loose sensitivity on exposure to high oxygen levels (100%). This makes it particularly suitable for measuring low oxygen in purged systems where the oxygen level may be high before the inert purge gas flow is started. The system response time is typically a few seconds and depends on the flow rate and the length of hose used to connect to the measurement point.

Calibrated and ready to use
The HP6 comes ready calibrated, with a certificate of calibration, and only needs to be re-calibrated once a year. The instrument can be re-calibrated by the user or returned to Topac for this service. The procedure is very straightforward involving a two step process. Step one is to key in the concentration of the calibration gases to be used. Step two is to sample from the calibration gases so that the instrument can calibrate to them.

Topac Inc. 231 CJC Highway, Suite 103 Cohasset MA 02025 USA
Tel: 781 740 8778 Fax: 781 740 8779
e-mail: sales@topac.com

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Keywords - residual oxygen, oxygen, carbon dioxide, O2, CO2, monitor, analyzer, analyser, vacuum, annealing, welding, purging, nitrogen purge, flow wrap, packaging machines, MAP, CAP, modified atmosphere, Multivac, Tiromat, Ross, PBI, PBI-Dansensor, Dansensor