2 Introduction and overview
2.1 General
The Neutronics Model 7100E is a compact analyzer designed for trace oxygen gas measurement. This
microprocessor-based instrument offers an efficient solution in a small package for trace oxygen
measurement and process control applications.
The Model 7100E features a remote mounted, rapid-response mini-zirconia sensor with a measurement
range of 0 to 1000 ppm oxygen. Extremely fast response, high accuracy, and no requirement for periodic
calibrations make this analyzer a low-maintenance solution that delivers reliable performance for critical
process control applications.
The ZR-400E mini-zirconia sensor is mounted externally in a Stainless Steel housing assembly. This
allows for installation close to the sampling point for the fastest response time possible. The housing is
configured with either a threaded connection for installation in a flow-through head or with a KF adapter
fitting for KF flange mounting.
2.2 Features
The Compact Series analyzer modules are designed to be flush mounted to a panel or console. Because
of the small size of the Model 7100E analyzer, it can be integrated into a variety of equipment or control
panels. The remote sensor assembly is designed for mounting close to the sampling point to assure the
fastest response possible.
Other Features Include:
• Compact, rapid-response mini-zirconia oxygen sensor
• Two user-adjustable oxygen alarms with configurable relay outputs for process control use
• Two analog outputs: 4-20 mA and 0-1, 0-5, or 0-10 VDC
• Auto ranging or fixed range oxygen measurement (VDC output provided for auto-range
identification)
• Double redundant operating system, with automatic repair function
• Bi-directional RS-232 serial interface for connection to a PC, terminal, or printer
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