• Faster accurate on line oxygen monitoring.
• Measures Oxygen 0.1ppm to 100%
• 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
• Built in diagnostics for easy troubleshooting
• Options for measuring from several locations
• Optional analog output modules.
• Optional Windows 95/98 interface software.
• Includes calibration certificate valid for 12 months
• Clean, hygienic membrane keypanel
• Robust industrial design ready for 7x24 work period.
• RS232 included.
• Data Sheet in pdf format here

Introduction to the MapCheck 9000
The Mapcheck 9000 is a sensitive oxygen analyzer designed for monitoring oxygen content in a variety of process control applications. The MapCheck 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 MapCheck is self contained it includes everything you need to set up an oxygen monitoring system.

In-line operation
The MapCheck 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 MapCheck 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 pump can be switched manually from the front panel or by means of an external trigger. ( The unit can also function with an external system pump and there is a throttle valve for fine tuning the sample flow for optimum sensitivity ). The Oxygen concentration is displayed continuously.

Sensitive, accurate and fast
The MapCheck is very sensitive, the detector responds in 50 mS and is sensitive down to ppb 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.

Microprocessor controlled
The MapCheck is a digital instrument. The user interface is a series of nested menus which are accessed by the 4 button keypad on the front panel. Various codes displayed in the LED let you know which function you are addressing. From the front panel you can set up alarm levels, view diagnostic information about the instrument, re-calibrate the instrument and set up the user options. Various codes displayed in the LED let you know which function you are addressing. Alternatively, with the optional Windows 95/98 software you can use a virtual control panel on your PC monitor.

Calibrated and ready to use
The MapCheck 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.

High Sensitivity Model 9000-4
The MapCheck 9000-4 is a higher sensitivity version of the MapCheck which uses all stainless steel sample hose to ensure low leakage. The instrument requires the use of stainless steel sample hose for external connections to ensure the sensitivity in the fractional ppm region. The flow rate for the type 4 is fixed at 200 l/min. The Type 4 system is particularly suitable for laboratory systems and clean applications.

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