Page 38 Milltronics SF 500 – INSTRUCTION MANUAL 7ML19985CN01
mmmmm
Recalibration
Press
Multispan
The SF 500 offers a multispan function. The SF 500 can be calibrated for up to eight
different products or feed conditions that produce varying flowrate characteristics.
Different feed conditions are typically related to running different materials or multiple
feed locations. To accommodate such applications, make a span correction by selecting
and applying the appropriate span.
Since every material has its own unique physical properties, and may have a different
impact, a span calibration is required for each material to ensure maximum accuracy.
With different feeder locations, a span calibration may be required to match each
feedpoint or combination of feedpoints.
Each time one of the eight conditions is in effect, select the corresponding multispan prior
to putting the SF 500 in RUN mode. Either change the multispan operation number (P365),
or program the external contacts connected to the auxiliary input, P270.
To enable multispan operation, address the following:
• connections
• programming
Connections
If the span selection is to be done by remote contact, the following connections would
apply. Otherwise, no additional connections to the SF 500 are required.
*Remote contact can be from relay or open collector switch.
P368 Direct Span Entry V
Enter Span Count 41900
Multispan Selection of Spans 1 and 2 Multispan Selection of Spans 1 to 8
*
25
24
22
30
26
28
23
27
29
AUX 4
COM
A-Z
AUX 5
SHLD
AUX 2
AUX 1
+
+
+
-
AUX 3
e.g. the last valid span count, e.g. 41900
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