The Michell Instruments XTP601 Oxygen Analyzer is a thermo-paramagnetic sensor that is a robust, linear and stable oxygen analyzer for measurements in gases such as hydrogen, nitrogen or carbon dioxide. The sensor is housed in an IP66 rugged casing, making it suitable for a wide range of applications. When supplied with flame arrestors, the analyzer becomes explosion-proof and suitable for use with flammable gases and/or installation in hazardous areas
The XTP601 has barometric pressure compensation fitted as standard and is ranged specifically to customer’s needs to offer the best accuracy where it matters.
The sensor in Michell’s XTP601 analyzer largely eliminates thermistor drift associated with other comparable devices, improving the stability of the measurement. This allows longer calibration intervals and reduces both labor and consumable costs.
Process and non-condensing sample with particles <3μm
Measurement range
Selectable from 0–0.5% up to 0-50% and 20, 80 or 90–100%
Display resolution
0.01% for suppressed zero ranges
Display type
Backlit LCD
Accuracy (excluding suppressed zero ranges)
<±1% of span or ±0.02% O2 whichever is greater
Accuracy for suppressed zero ranges (80/90–100%)
<0.2% O2
Response time (T90) with high speed response (HSR) enabled
<15 seconds
Repeatability
±0.2% of span or 0.01% O2 whichever is greater
Linearity
±0.5% of span or 0.05% O2 whichever is greater
Zero stability
±0.25% of span per month
Span stability
±0.25% of span per month
Sample flow rate
GP1 and GP3: 100 to 500 ml/min (0.2 to 1.06 scfh)
EX1, EX3 and GP2: 270 to 330 ml/min (0.6 to 0.7 scfh)
Sample pressure
0 to 3 barg inlet with atmospheric vent
Sample temperature
5 to 55°C (+41 to +131°F) max (+45°C (+113°F) for standard cell)
Sample cell temperature
Standard +50°C (+122°F)(Optional +55°C and +60°C (+131°F and +140°F) for ranges 0-0.5% up to 0-50% only.)
Background gas
Analyzer is calibrated in the background gas of the process. Standard gases are: N2, CO2, CH4, H2 & Biogas. Others available on request.
Analog inputs
2 off 4–20 mA inputs
One for an external sensor that can be displayed on the screen
One to act as an active compensation for the process conditions
Analog outputs
2 off 4–20 mA outputs (powered with 24V excitation voltage)
Output ranges
Primary range is set to the calibrated range of the instrument
The second is user selectable 0-100%
Alarms
2 off single pole changeover (SPCO) relays for O2 concentration (250 V, 5 A max)
Datalogging
The user can use the digital communications to log the output from the analyzer The unit will store 40 alarm points and the min/max O2 concentrations with date and time stamp
Digital communications
Modbus RTU over RS485 Protocol
Power supply
24 V DC; 1.5 A max
Cable entries
Analyzer is supplied with 3 x M20 cable entries. Cable glands, conduit entries and blanking plugs are available as accessories.
