XZR500 Combustion Control Analyzer

The XZR500 measures levels of oxygen in combustion processes and flue gases to help maintain the optimum level of combustion efficiency. Accurate control of combustion efficiency is critical for optimal fuel usage and reducing plant operating cost.

The XZR500 flue gas analyzer can be located close to the gas stream, further reducing costs. Due to its unique design the sensor is protected from damaging conditions, providing long life in difficult environments.

Michell Instruments has over 30 years experience developing high performance instrumentation capable of operating in extreme conditions. Our customers benefit from our knowledge of oxygen measurement at high temperatures and in corrosive, acidic gases.

Product Features

• Innovative, Metallic Sealed Reference Sensor provides reliable and repeatable measurements with low maintenance
• Simple air calibration reduces cost of ownership
• Robust design maximizes sensor life
• Flexible installation reduces retrofitting and start-up costs
• Advanced design is easy to operate and maintain
• No chance of thermal shock to sample cell

Technical Specification

Sensor Type
Measurement Principle	Zirconium oxide sensor with metallic sealed reference and K Type T/C
Performance
Gas Requirements	Typical exhaust gas
Measurement Range	0.01 to 25% Oxygen
Accuracy	Better than ± 2% of reading
Response Time (T90)	20 seconds
Repeatability	± 0.1% of reading
Stability	1% per month
Linearity	Better than ±1% of reading
Sample Flow Rate	Flue Gas at 0.5m/s (17.65 ft/s) minimum rate
Maximum Sample Pressure	Application dependent
Maximum Sample Temperature	+1300°C (+2372°F) (see probe selection in Wetted Materials)
Outputs
Output Signal	One 0/4-20 mA linear, with isolated output 2nd output optional
Output Load	Over 1000 Ω
Self-diagnostics	Includes: oven under temperature; thermocouple separation; calibration fail; EEPROM corruption (Diagnostic information displayed on panel meter)
Output Ranges	Configurable between 0.01 to 25%
Alarms	2 Alarms; User-adjustable (10 W) 1 Fault Alarm
Display Resolution	0.1% in standard (0.01% on request)
Power Supply	110V (100 to 120) 50-60 Hz or 220 V (190 to 240) 50 Hz
Power Consumption	110 V A
Ambient Temperature Range	0 to +55°C (+32 to 131°F)
Sensor Temperature	+700°C (+1292°F)
Operating Humidity	5 to 90% RH non-condensing
Physical
Dimensions
Control unit:	300 x 300 x 200mm (11.8 x 11.8 x 7.8 inches)
Sensor:	290 x 135 x 650mm (11.4 x 5.3 x 25.6 inches)
Weight	10 to 15 kg (22 to 33 lbs) depending on configuration
Wetted Materials	304 L Stainless steel (700°C (1292°F)) Inconel 600 (1000°C (1832°F)) HR160 (600°C to 1000°C (1112°F to 1832°F)) C2000 (600°C (1112°F)) Halar coating (120°C (248°F)) Ceramic (1300°C (2372°F))
Probe Lengths	0.4, 0.6 and 0.9m (15.75, 23.62, 35.43 in)
Installation	Stack and wall-mount
Housing Ingress Protection	Weather proof enclosure to sensor: IP53 Control unit: IP52