XZR400 Series Oxygen Analyzers

A range of trace oxygen analyzers utilizing Michell's Metallic Sealed Reference Sensor (MSRS) technology. Designed to measure O2 as an impurity in pure inert gases such as N2, CO2,, He, Ar and Kr. The XZR400 can also be used for cylinder filling and other applications where a precise measurement of oxygen is required. There are 4 different chassis to choose from and various internal options including pumps, flow alarms and digital communications to match customer needs.

See datasheet for the full specification of the XZR400 Series range.

Product Features

  • Fast response time
  • Simple and easy operation
  • Low maintenance and cost of ownership
  • No need for reference air
  • Barometric pressure compensation
  • Multiple Outputs available from 4-20 mA, RS485 Modbus RTU and RS232
  • Rack, wall-mount, bench-mount, and transportable versions available

XZR400 Rack Mount Version

Technical Specification

Sensor Type
Measurement Principle Zirconium Oxide Sensor with Metallic Sealed Reference and S Type T/C
Gas Clean, dry, oil free with particles less than 3μm
Measurement Range 0.01 ppm to 25% Oxygen (up to 100% optional)
(intrinsic error)
Less than 2% of reading
Response Time (T90) <11 seconds
Repeatability ±0.1% of reading
Stability 1% per month
Linearity Better than ±1%
Sample Flow Rate 1 to 3 l/h with built-in fast loop
Drift <1% of reading per week
Maximum Sample Pressure 2 barg
Maximum Sample Temperature +100°C
Atmospheric Pressure Compensation Built-in as standard
Output Signal One 4-20 mA Linear with Galvanic Isolation Outputs
2nd freely configurable 4-20 mA output for RM version (optional for WM version)
One optional RS485 output - ModBus communication protocol
Output Load Over 1000 Ω
Self-diagnostics Via HMI
Output Ranges 0.1 ppm to 25%, freely configurable (up to 100% optional)
Alarms 2 threshold alarms, freely configurable
1 general fault alarm including flow alarm
1 remote flow alarm (optional)
Display Resolution 0.01 ppm between 0.1 ppm and 10 ppm
0.1 ppm between 10 ppm and 10,000 ppm
0.01% between 1 and 10%
0.1% between 10 and 25%
Power Supply 90 to 264 V AC, 47/63Hz
Power Consumption 50 VA
Operating Conditions
Ambient Temperature Range 0 to +55°C
Sensor Temperature Optimized @ +634°C
Operating Humidity 5 to 90% RH without condensation
Mechanical Specification
Dimensions and weight Rack mount: 19’’, 3U, 482.5 x 133 x 371.5mm, 10kg
Wall mount: 200 x 220 x 290mm, 5kg
Bench mount: 290 x 260 x 236mm, 5.2kg
Transportable: 450 x 300 x 330mm, 13.5kg
Sample Gas Connections 6mm Swagelok Tube Fittings (316 SS)

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