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8020216/19YN/V3-0/2020-12| SICK
O P E R A T I N G I N S T R U C T I O N S | DUSTHUNTER SP100 Ex-3K
Subject to change without notice
9
CONFIGURING
9.5.7
Setting the response time
Select the “Configuration / Value Damping” directory to set the damping time (response
time).
Fig. 48: SOPAS ET menu: MCU/Configuration/Value Damping
Erratic increases in measured values can be “calmed” with the damping time, a longer
damping time reduces output signal fluctuations.
Table 20: Damping time (response time)
9.5.8
Calibration for dust concentration measurement
For exact dust concentration measurement, the relation between the primary measured
variable “Scattered light intensity” and the actual dust concentration in the duct must be
established. To do this, the dust concentration must be determined based on a
comparative gravimetric measurement according to DIN EN 13284-1 and set in relation to
the values measured at the same time by the measuring system.
Steps to be carried out
1
Select device file “MCU”, set the measuring system to “Maintenance” mode
2
Enter the Level 1 password (
see “Password for SOPAS ET menus”, page 68
).
3
Select the “Configuration / IO Configuration / Output Parameter” directory (
ET menu: MCU/Configuration/IO configuration/Output Parameters”, page 79
) and
assign the “Scattered light intensity” measured variable to one of the three analog
outputs available.
4
Estimate the measuring range required for the dust concentration in operational state
and enter this in the “Analog output 1
(2/3)
Scaling” field assigned to the selected analog
output assigned to the scattered light intensity.
5
Deactivate the “Maintenance” status.
6
Carry out the gravimetric comparison measurement according to DIN EN 13284-1.
7
Determine regression coefficients from the mA values of the analog output for
“Scattered light intensity” and the actual dust concentrations measured gravimetrically.
Field
Parameter
Remark
Damping time Sensor 1
Value in s
Damping time for the measured variable
Setting range 1 ... 600 s
NOTE:
The performance of a comparative gravimetric measurement requires special
equipment and knowledge, which are described in more detail in DIN EN
13284 and others.
