Troubleshooting & Procedures
Field-oriented guidance for calibration, stability checks, and common AZ-series diagnostics.
Overview
The ABB AZ30 is built for demanding combustion applications where response time, accuracy, and diagnostic depth are critical. Most “analyzer issues” still originate from sample condition, leaks, heater stability, or reference path problems.
Calibration
1) Confirm stable temperature / heater status (no hunting).
2) Verify sample flow, probe/filters clean, and no leaks.
3) Run zero and span; allow stabilization time.
4) Perform reference gas/air checks per manual.
5) Verify drift/response and document results.
Tip: If span won’t settle, check moisture ingress, restrictions, reference path blockage,
and unstable sample pressure first.
Maintenance
- Inspect sensor condition and response time
- Check heater stability and temperature trend
- Verify sample filters, probe, and blowback (if applicable)
- Confirm reference path is clean, dry, and not restricted
- Check grounding, wiring, and cabinet environmental condition
Field tip: Trending heater power and O₂ stability often detects issues earlier than alarms.
Common Alarms
All AZ-series alarms (AZ10 / AZ20 / AZ25 / AZ30) are handled in the shared alarms folder.