- Brand: Michell Instruments
Tags: XZR200, Oxygen, Analyzer, Michell, Instruments
A cost effective zirconium-oxide analyzer to measure percentage level oxygen in combustion
processes, ambient air monitoring and many more applications. The unit is configurable to
measure either 0-25% or 0-100% oxygen and offers manual or automatic calibration to suit the
customer’s needs. Two probe lengths are available (210mm & 400mm) as well as two maximum
sample temperatures (250°C & 400°C) for greater flexibility.
Product Features
- Configurable outputs: 4-20 mA and 0 to 10 V DC or RS232 comms interface
- Cycling 3.3 V DC logic output allows direct monitoring of the O2 sensor for diagnostic purposes
- Can be calibrated in normal air (20.7% O2) or in any other known O2 concentration
- Selectable output filtering allows fast and dynamic or slow and stable output
- Externally triggered automatic or manual calibration
- Diecast aluminium case IP65 with stainless steel probe
- Sample temperature up to +400°C
Technical Specification
| Performance | |
| Measurement technology | Zirconium oxide |
| Gas | Oxygen |
| Measurement range | 0-25% or 0-100% |
| Output resolution | 0.01 V, 0.01 mA or 0.01% O2 |
| Accuracy (0-25%) | < 0.5% O2 |
| Accuracy (0-100%) | < 1% O2 |
| Response time (T90) | < 5 seconds |
| Repeatability | < 0.5% |
| Sample flow rate | 0 to 10 m/sec |
| Sample flow effect (calibrated @ 0.5 l/min) | ±0.1% O2 (0 to 1 l/min) |
| Sample pressure | Atmospheric* |
| Sample temperature | Up to +250°C or +400°C |
| Sensor temperature | +700°C |
| Background gas | Air, N2, CO2, Ar or Combustion Gas |
| | |
| Electrical Input/Output | |
| Power supply | 24 V DC, ±10% |
| Power consumption | 500 mA maximum @ 24 V DC |
| Analog outputs | 4-20 mA and 0 to 10 V DC |
| Output ranges | 0-25% or 0-100% |
| Digital communications | RS232 (not available if 4-20 mA output selected) |
| Operating Conditions | |
| Ambient temperature | -10 to +85°C |
| Mechanical Specifications | |
| Warm Up time | Approx. 10 minutes |
| Stabilization time | Included in the above |
| Dimensions | 52 x 75 x 80mm (h x w x d) excluding probe |
| Probe dimensions | 210 or 400mm (length) ø12mm |
| Weight | < 0.5kg |
| Wetted materials Stainless steel | |
| Process connection | 12mm Swagelok® compression fitting or equivalent required |
| Ingress protection | IP65 |
| Housing material | Waterproof die-cast aluminium housing |
| Warning: Probe tip gets hot, do not touch without PPE | |
| * The XR200 is designed to be operated at atmospheric pressures. However, it is possible to measure in the range 0 to 25% O2 at pressures up to 3 barg (43.5 psig) without damage to the unit. The unit will require calibration at the operating pressure and a separate pressure transducer feeding into the control system may be required. | |
