Oxygen Analyzer for Hazardous Areas

OXYGEN ANALYZERS When a process oxygen application demands best accuracy and stability, along with lowest maintenance cost, paramagnetic oxygen technology is usually preferred. If, in addition, the application calls for a rugged and reliable, corrosion resistant analyzer, the thermo-paramagnetic principle of Michell’s new XTP600 series makes it the instrument of choice.

XTP600 Series Oxygen Analyzer

For Hazardous Areas

Product Features:

• Best-in-class accuracy of less than 1% FS allows re-ranging with no need for re-calibration
• Best-in-class zero or span stability: 0.25% of span per month
• Innovative sensor design means no zero shift and eliminates background gas effects
• Increased protection against contamination
• Two 4-20mA inputs for process variables allows active compensation
• Two isolated outputs and a local display in an explosion-proof enclosure allow local as well as remote installation
• Lowest cost of ownership due to minimal maintenance

Technical Specifications

Performance
Measurement Technology	Thermo-paramagnetic oxygen sensor
Gas	Process and non condensing sample
Measurement	Range Selectable from 0 to 1% to 0 to 25% oxygen (other ranges available on request, eg 0-100%  or suppressed ranges)
Accuracy	Better than ±1% of span
Response Time (T90)	Standard response: 70 seconds, EN 50104: 45 seconds. For fast response consult factory
Repeatability	±0.2% of span
Linearity	±0.5% of span for ranges higher than 0-5%  <±1% of span for ranges less or equal to 0-5%
Zero Stability	±0.25% of span per month
Span Stability	±0.25% of span per month
Sample Flow Rate	0.4 l/min for the sensor cell (0.85 scfh)
Maximum Sample Pressure	Atmospheric to maximum of 3 bar (43.51 psi)
Maximum Sample Temperature	45°C max (113°F) (higher temperature on request)
Electrical input/output
Output Signal	Two 4 – 20 mA linear (one for O2 concentration and one for background gas)
Inputs	Two 4 – 20 mA inputs for active external background gas and pressure compensation
Output Ranges	0 to 1%; 2%; 5%; 10%; 25% (higher range, eg 0-100%, upon request with pressure compensation)
Display Resolution	0.1% on 0 to 25% range
Power Supply	24VDC; 1.5 A max
Operating conditions
Ambient Temperature Range	0°C to +45°C (+32°F to +113°F). Range extension below 0°C (+32°F) available – please consult factory.
Mechanical specification
Warm-up time	30 minutes
Dimensions	213mm x 180mm x 140mm (8.4 in. x 7 in. x 5.6 in.)
Weight	6.3kg
Wetted Material	AISI 316 and viton, other materials on request
Gas connection	¼”NPT female
Enclosure ingress protection	IP65. For hazardous-area applications, flame arrestors are supplied
General
Hazardous area certifications	II 2 GD Exd IIC T4 Gb II 2 D Extb IIIC T135°C Db IP66 T Amb -50°C/+60°C
Marine approvals	Consult factory