Cleaning in process – Kuntze Instruments GmbH

Cleaning in Progress

This article explains the Cleaning in Progress message shown on the analyzer during an active ASR® cleaning cycle.

Message Meaning

Cleaning in Progress is an event notification, not an alarm. It indicates that ASR® cleaning is currently active.

The message is typically displayed for 2 to 5 minutes.

System Behavior During Cleaning

Measurement is temporarily inactive during the cleaning cycle.
The last valid measured value is held (frozen) on the instrument display and mA output.
Control functions are temporarily disabled during cleaning.
Calibration is not possible while cleaning is active.

Calibration Recommendation

Do not calibrate immediately after ASR® cleaning.

Wait 15 to 30 minutes after cleaning has finished to allow the sensor signal to stabilize before starting calibration.

Recommended Cleaning Schedule

If possible, schedule ASR® cleaning for off-hours (for example around midnight) or for a time window when no operator is on site.

This reduces confusion caused by temporary "Cleaning in Progress" messages during active shifts.
It helps avoid calibration attempts during or directly after cleaning.
Keep the 15 to 30 minute stabilization period before calibration.

Summary

The Cleaning in Progress message confirms that ASR® cleaning is running normally. During this period, measurement and control are temporarily paused. After cleaning, allow sufficient stabilization time before calibration for reliable results.