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To start Auto setup press key Auto setup for 1 sec. The display shows the remaining time in seconds
and the green LED will be blinking. When the Auto setup procedure has finished the display goes back
to normal operation mode. If you want to cancel Auto setup press Auto setup again for one second.
To return the RS485 bus to the factory default setting (DustTool / DustLog connection) press the Auto
setup button within 6 seconds of the device booting up. Note that this will initiate a self-check
procedure during which the RS485 bus settings will be reset. When running outside of a production
environment, the check will fail due to lack of external testing hardware and issue an alarm. When
resetting the RS485 bus settings this way, make sure to reboot the device after the reset.
8.4
Selectable parameter sets SLOW, MEDIUM, FAST
The Dumo can be set to operate either with customer selectable parameters or in one of pre-determined
modes. These modes change the behavior of the Dumo making the response either SLOW, MEDIUM or FAST.
The display shows periodically which of the parameter sets is in use, or 'CUST' if custom settings have been
selected by modifying the parameters manually.
Parameter
(Param.2) Averaging time: [sec]
(Param.6) Alarm delay time: [sec]
(see 8.2 Auto setup) Factor for Alarm A:
(see 8.2 Auto setup) Factor for Alarm B:
(see 8.2 Auto setup) Factor for 20 mA:
Display reading
The mode can be displayed by pressing the 'MODE' switch on the connection area for less than 1 second.
Display will show the selected mode, and if the MODE button is pressed again within 10 seconds, the mode
will change to the next option (FAST -> MEDIUM -> SLOW).
The parameters listed in the table above will be set and alarm limits and 20 mA scaling will be recalculated
based on last Autos setup result.
Table 3 Selectable mode parameters
SLOW MEDIUM
(default)
100
50
60
30
5
5
20
20
20
20
SLO
MED
FAST
10
10
3
10
20
FAST
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