Michell XTP601
XTP601 Series
Oxygen Analyzer for Safe or Hazardous Areas
A robust, linear and stable oxygen analyzer for measurements in gases such as hydrogen, nitrogen, biogas, 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 certified for use in hazardous areas.
Product Features
- General purpose or ATEX, IECEx, CCSAUS, TC, TR & Ex hazardous area certified models
- Ranges available: 0–0.5% up to 0–50% & 20, 80 or 90–100%
- Touch-screen display allows calibration or adjustment without the need for a hot works permit
- Intrinsic error (accuracy) is better than 1% full scale
- Zero span stability better than 0.25% of span per month
- Outputs include RS485 and two 4-20mA (following NAMUR NE 44 standard)
- Low cost of ownership due to minimal
| Performance | |
| Measurement Technology | Thermo-paramagnetic oxygen sensor |
| Gas | Process and non-condensing sample with particles <5µm |
| Measurement Range | Selectable from 0–0.5% up to 0-50% and 20, 80 or 90–100% |
| Display Resolution | 0.01% for zero based ranges 0.1% for supressed zero ranges |
| Display Type | Backlit LCD |
| Accuracy Excluding Suppressed Zero Ranges | ±0.02% O2 or <±1% of span whichever is greater |
| Accuracy For Suppressed Zero Ranges (80/90 – 100%) | ±0.2% O2 or <±1% of span whichever is greater |
| 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 | 100 to 600 ml/min |
| Sample Flow Effect | GP1 and GP3: 100 to 500 ml/min (0.2 to 1.06 scfh) EX1, EX3 and GP2: 270 to 330 ml/min (0.2 to 1.06 scfh) |
| Sample Pressure | 0.75 to 2 BarA |
| Sample Temperature | 5 to +55°C max (+45°C for standard cell) |
| Sample Cell Temperature | Standard +50°C (Optional +55°C and +60°C for selected ranges and gases) |
| Background Gas | Analyzer is calibrated in the background gas of the process. Standard gases are: N2, CO2, CH4, H2 & Biogas. Others available on request |
| Electrical Specifications | |
| 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 configurable between 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 |
| Operating Conditions | |
| Ambient Temperature | 5 to +55°C |
| Atmopheric pressure | 750mbar to 1250mbar |
| Mechanical Specifications | |
| Warm Up Time | <25 minutes |
| Stabilization Time | 5 minutes |
| Dimensions | 234 x 234 x 172mm (w x d x h) |
| Weight | 9.7kg |
| Wetted Materials | 316 & 430F stainless steel, boroscillicate glass, platinum, 3M 2216, plus O-ring |
| O-Ring Materials | Viton, Silicone or Ekraz |
| Gas Connection | EX1, EX3 & GP2: 1/8” NPT (female) GP1 and GP3: 1/4” NPT (female) |
| Ingress Protection | IP66, NEMA 4X |
| Hazardous Area Classification | |
| ATEX | II 2GD Ex d IIB+H2 T6 Gb Ex tb IIIC T85°C Db IP66 |
| IECEx | Ex d IIB+H2 T6 Gb Ex tb IIIC T85°C Db IP66 |
| CCSAUS | Class I, Division 1, Groups B,C,D, T6 |
| INMETRO | Ex d IIB+H2 T6 Gb Ex tb IIIC T85°C Db IP66 |
| TC TR | 1 Ex d IIB+H2 T6 Gb |
| Temperature Ranges for ATEX and IECEx as per O-ring Type | Silicon: Ta = -40°C to +55°C Viton®: Ta = -15°C to +55°C Ekraz: Ta = -10°C to +55°C |
| The XTP601 process oxygen analyzer meets or exceeds all relevant clauses in BS EN 50104 : 2010 “Electrical apparatus for the detection and measurement of oxygen”. |
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