Product Core Brief
- Model: ZR22G-100-S-A-C-T-T-C-A\F1
- Brand: YOKOGAWA
- Series: OpreX Analyzers
- Core Function: Continuously measures oxygen concentration in high-temperature combustion exhaust gases.
- Product Type: Zirconia Oxygen Analyzer Probe
- Key Specs: 1.0m Insertion Length | 0-100 Vol% O2 Range | 700°C Max Temp
- Condition: New Original / New Surplus
Product Introduction
YOKOGAWA ZR22G-100-S-A-C-T-T-C-A\F1 probes directly measure oxygen in harsh combustion environments. This zirconia sensor installs directly into the stack, eliminating the need for expensive sample extraction systems.
The YOKOGAWA ZR22G-100-S-A-C-T-T-C-A\F1 features a 1.0-meter insertion length and handles sample gas temperatures up to 700°C. Field engineers value the field-replaceable heater assembly, which drastically cuts maintenance downtime.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Measurement System | Zirconia Solid Electrolyte |
| Insertion Length | 1.0 Meter (1000 mm) |
| O2 Measurement Range | 0.01 to 100 Vol% |
| Max Sample Gas Temp | 700°C (Standard Probe) |
| Sample Gas Pressure | -5 to +250 kPa |
| Output Signal | 4-20 mA DC |
| Digital Communication | HART Protocol |
| Response Time | < 5 Seconds (90%) |
| Protection Rating | IP66 / NEMA 4X |
| Repeatability | ±0.5% of Span |
Quality Control Process
Every YOKOGAWA ZR22G-100-S-A-C-T-T-C-A\F1 undergoes strict electrical validation before shipping. We first measure the internal heater resistance, verifying it falls within the 57-85Ω specification to ensure proper operating temperature. Next, technicians check the Type K thermocouple circuit, confirming it reads less than 3Ω at room temperature.
We then perform high-voltage insulation tests using a 500Vdc Megger. The thermocouple, cold junction, and heater wires must all show greater than 2MΩ isolation to the probe case. Finally, the unit is sealed in anti-static packaging to protect the sensitive zirconia cell electronics during transit.
Replacement Pitfall Guide
❗ Never install this probe horizontally upward. The YOKOGAWA ZR22G-100-S-A-C-T-T-C-A\F1 must be installed horizontally or vertically downward to prevent moisture and particulate accumulation inside the sensor cell.
❗ Verify the reference air supply method. The suffix codes dictate whether this unit uses natural convection, instrument air, or pressure-compensated reference air. Using the wrong reference type will cause massive calibration drift.
❗ Mind the high-temperature threshold. Standard probes max out at 700°C. If your stack exceeds 600°C, you must install a protective unit. Exceeding 700°C requires a specialized high-temperature adapter and a 0.15m probe.
❗ Check the cold junction compensation. If replacing an older converter, verify the ROM version and cold junction temperature compensation board. Mismatched compensation boards cause erratic readings and false cell failures.
Keep these in mind and you’ll cut 90% of rework time.
Compatibility Matrix & Benchmarks
| Original Model | Replacement / Successor Model | Compatibility Level (Direct/Needs Adaptation) | Migration Notes |
|---|---|---|---|
| ZR22G-100 | YOKOGAWA \F1 | Direct | Drop-in replacement; verify reference air suffix |
| ZR22A | YOKOGAWA \F1 | Direct | Mechanical fit is identical; electrical specs improved |
| Legacy ZA8C | ZR402G Converter + ZR22G Probe | Needs Adaptation | Requires ROM swap and K9471JA compensation board |
- O2 Measurement Range: 0.01 to 100 Vol%, providing wide-range flexibility for various combustion processes.
- Response Time: Reaches 90% of final reading in under 5 seconds, ensuring tight combustion control loops.
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