Confirming The Sensor Condition - Kanomax 3521 Operation Manual

4.3 Confirming the Sensor Condition

When the instrument is powered on, the screen below will display a flashing "WAIT" message in
the operating status field. After approx. 10 seconds the sensor will stabilize and the "WAIT"
message will stop flashing.
The measurable range of the sensor can be confirmed by the bar indicator and the frequency
displayed on the screen.
1) Confirming the Measurable Range using the Bar Indicator:
The bar indicator will be at full length immediately after cleaning. The bar will move to the
right, decreasing in length as dust accumulates on the sensor. When the remaining length of
the bar indicator is short, or when "CLEANING" is flashing, the sensor should be cleaned
immediately. (Refer to section 4.4 and 4.5 for cleaning.)
2) Confirming the Measurable Range using the Frequency display:
The frequency can be displayed by pressing △
△ or ▽ again.
The frequency will increase as dust accumulates on the sensor. When the frequency exceeds
the Fundamental Frequency + 2000Hz, "CLEANING" will flash. Cleaning should be done
immediately.
* The frequency increases as the length of the measurable range bar indicator decreases.
Operating status
Caution:
Confirm that the bar indicator has sufficient length before starting a measurement. Never leave
dust accumulated on the sensor as it may prevent the bar indicator from recovering even after
cleaning. It can also affect the frequency display, which will affect the measurement accuracy.
or ▽ , and hidden by pressing
7
Measurable range
Bar indicator
Frequency:
Display/Hide with
△ or ▽