Warnings
Table 13. Troubleshooting warnings
Warning Message Description Possible Cause
Effective Duration
Low
Effective Duration is a
measure of the data
transfer efficiency. Normal
operation results in an
Effective Duration of
approximately 50%.
Effective Duration Low may indicate that
PC specifications are inadequate. A low
Effective Duration may reduce the
precision of the measurement.
If the Effective Duration is significantly less
than 40%, contact METTLER TOLEDO.
The measurement interval can also impact
Effective Duration. Only select an interval
<10 s where you expect rapid process
changes.
Average Signal
Intensity High
Average Signal Intensity is
an indicator of the amount
of light backscattered by
the particles or droplets
being measured.
Average Signal Intensity High may indicate
that the particles being measured are
highly reflective. Very high backscatter
may saturate the sensor, resulting in
erroneous measurements.
Table 12. Troubleshooting errors
Error Message Description Possible Cause
Air Filter Pressure
High / Low
Pressure measured at the
outlet of the internal air
filter is outside the
recommended range
Possible causes include scanner inlet
pressure is not set within recommended
range or filter is clogged and needs
replacement.
Box Temperature
High / Low
Internal temperature of
base unit has fallen
outside of the
recommended operating
temperature range.
The base unit is installed in a location that
is not within recommended specification.
Scan Speed or
Scan Frequency
High / Low
Desired scan speed or
frequency is outside
acceptable range.
Air pressure to probe scanner is set
incorrectly. Check the pressure and
regulate to proper range. If error continues,
contact METTLER TOLEDO.
Tach Pulse
Missing
Data acquisition error. Verify USB and fiber connections are
secure. If error continues, contact
METTLER TOLEDO.
10 Troubleshooting
Errors are generally hardware-related issues that affect data acquisition. The
following table documents how hardware errors are displayed in the control software,
describes what the error means and provides possible root causes to assist with
troubleshooting and resolving the issue. If the issue cannot be resolved, please contact
AutoChemCustomerCare@mt.com for assistance.
Errors