Subject to change · V 2.02.20 · EN
Page 24
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11.2.4 Automatic
In automatic mode, the measuring time is dynamic, dependent on the flow and the particle concentration.
A measurement runs until the following conditions are met:
› A defined number of particle has been detected AND
› The measuring time is at least 45 seconds OR
› The measuring time exceeds 300 seconds
After the compliance of the conditions the result is calculated and displayed. The number of necessary particles can be changed via
the serial interface with the command “WAutoParts”. For further information see chapter “Communication”. It should however only
be changed by an experienced user. Factory setting is 200.
Information regarding time specification on the start screen:
› Running measurement: Elapsed time (up counter)
› Pause mode: Not available, a new measurement is started automatically.
11.3 Alarm configuration
11.3.1 Alarm type
There are three different alarm modes available, which can be specified in the menu.
All three alarms are connected with each other. If one of the three alarms is activated, this is signaled by the following:
› LED "Alarm" lights up red
› A flashing warning triangle with an exclamation mark in the display
› Alarm output Pin 7 active (see Chapter 15.2 "Switch output")
› Setting of defined bits in the error codes (ERC)
Measurement results of 0 (ZERO) are considered to be implausible.
The alarm handling is ignored in this case, apart from the temperature alarm.
11.3.1.1 Standard alarm
For each measured ordinal number (OL), a separate limit value can be set. If one size class shall not be considered, the smallest value
must be set. The alarm is activated as soon as a measured cleanliness class has reached or exceeded the set limit value.
Standard Adjustment range Value for deactivation Alarm condition
ISO 4406:17 0, 1, 2... 28 0 OZ 4 µm ≥ limit valueOR
OZ 6 µm ≥ limit value OR
OZ 14 µm ≥ limit value OR
OZ 21 µm ≥ limit value
SAE AS 4059E 000, 00, 0, 1, 2...12 000
NAS 1638 00, 0, 1, 2...12 00
OZ ≥ limit value
GOST 17216 00, 0, 1, 2...17 00
Table 11: Alarm configuration standard
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