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Michell Instruments
Michell XZR501 Combustion Control Analyzer
Quote on request
No online payment · add lines to RFQ BOM
ZrO2 combustion O2; 0.01–25%; MSRS sensor; probe options. RFQ + selection help.
Download datasheet PDF
RFQ cart holds BOM lines only. Submit for engineering quote.
Key parameters
Measuring range
0.01 to 25% O2 (XZR501 GP analyzer ranged 0…25% O2)
Accuracy
Better than ±2% of reading; repeatability ±0.1%; linearity better than ±1%; drift <1% per month
Output
One 0/4–20 mA linear galvanically isolated output; optional 2nd mA (O2 or calculated CO2); optional RS485
Supply
110 V (100…120) or 220 V (190…240) 50/60 Hz
Protection
Sensor head IP53; control unit IP52
Ambient temperature
0 to +55 °C (+32 to +131 °F); humidity 5…90% RH non-condensing
Fits combustion oxygen control where you need a Michell XZR501/XZR500-family zirconium oxide analyzer with MSRS sensor and probes for sample temperatures up to 1400 °C class.
Key advantages
- Range — 0.01 to 25% O2 (XZR501 GP ranged 0…25% O2)
- Accuracy — Better than ±2% of reading; repeatability ±0.1%; T90 20 s
- Sensor — Zirconium oxide MSRS with Type K; oven +700 °C; no reference air required
- Outputs — One 0/4–20 mA isolated; optional 2nd mA / RS485; user alarms
- Probes — 0.4 / 0.6 / 0.9 m; materials from 316L to ceramic/SiC class
Typical applications
- Boiler and furnace combustion oxygen trim.
- High-temperature flue gas O2 with suitable probe materials.
- Control loops needing isolated 4–20 mA O2 (and optional calculated CO2).
Selection guide
- Probe length / material — Match flue temperature and chemistry
- Supply — 110 V or 220 V 50/60 Hz
- Outputs / alarms — 2nd mA, RS485, alarm contacts
- Environment — Control unit 0…+55 °C; IP52/IP53 class packaging
Common mistakes
- Ordering short 316L probes into >1400 °C gas without ceramic/SiC options.
- Assuming reference air plumbing — MSRS does not require reference air.
- Ignoring control-unit ambient limits near hot ducts.
When to RFQ / what to tell us
- Flue temperature, O2 span, probe length/material.
- Supply voltage; output/alarm options.
- Quantity and ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 1418-0001 |
| Brand | Michell Instruments |
| Model | XZR501 Combustion Control Analyzer |
| Product type | Combustion Oxygen Analyzer |
| Measuring range | 0.01 to 25% O2 (XZR501 GP analyzer ranged 0…25% O2) |
| Accuracy | Better than ±2% of reading; repeatability ±0.1%; linearity better than ±1%; drift <1% per month |
| Output | One 0/4–20 mA linear galvanically isolated output; optional 2nd mA (O2 or calculated CO2); optional RS485 |
| Supply | 110 V (100…120) or 220 V (190…240) 50/60 Hz |
| Response time | T90 20 seconds |
| Sensor type | Zirconium oxide MSRS (Metallic Sealed Reference Sensor) with Type K thermocouple; sensor oven +700 °C; no reference air required |
| Sample temperature | Up to 1400 °C (2552 °F) depending on probe material |
| Probe lengths | 0.4 / 0.6 / 0.9 m; materials 316L SS, Halar, C2000, HR160, Inconel, Kanthal, ceramic, SiC |
| IP rating | Sensor head IP53; control unit IP52 |
| Alarms | 2 user-adjustable alarms + 1 general fault alarm |
Documents
FAQ
Q: What O2 range is offered? A: 0.01 to 25% O2 on the XZR501 GP analyzer class.
Q: Is reference air required? A: No — MSRS Metallic Sealed Reference Sensor needs no reference air.
Q: What should I send for a quote? A: Flue T, probe, supply/outputs, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Measuring range | 0.01 to 25% O2 (XZR501 GP analyzer ranged 0…25% O2) |
| Accuracy | Better than ±2% of reading; repeatability ±0.1%; linearity better than ±1%; drift <1% per month |
| Output | One 0/4–20 mA linear galvanically isolated output; optional 2nd mA (O2 or calculated CO2); optional RS485 |
| Supply | 110 V (100…120) or 220 V (190…240) 50/60 Hz |
| Protection | Sensor head IP53; control unit IP52 |
| Ambient temperature | 0 to +55 °C (+32 to +131 °F); humidity 5…90% RH non-condensing |
| Display | Control unit readout; display resolution 0.1% O2 standard |
| Sensor type | Zirconium oxide MSRS (Metallic Sealed Reference Sensor) with Type K thermocouple; sensor oven +700 °C; no reference air required |
| Notes | XZR501 is the PST order parent for the general-purpose XZR500-family combustion analyzer. Family datasheet/manual used; dedicated XZR501 order-code PDF linked on PST but returned HTML at harvest time. |
| Response Time | T90 20 seconds |
| Sample Temperature | Up to 1400 °C (2552 °F) depending on probe material |
| Probe Lengths | 0.4 / 0.6 / 0.9 m; materials 316L SS, Halar, C2000, HR160, Inconel, Kanthal, ceramic, SiC |
| Alarms | 2 user-adjustable alarms + 1 general fault alarm |
| Weight | Control unit 7 kg; sensor head 3.5 kg; probe 1.5–4.5 kg |