2 guidelines for capacity and resolution, Xq/g, 5 times – Rice Lake MSI-3460 Challenger 3 User Manual
Page 34
30 MSI-3460 Operator’s Manual
Figure 5-5.
14) The first digit blinks. Use the
USER
key to scroll through
the numbers. When the
desired number is shown,
push
TARE
.
In this example, we’ll enter
2500 as a capacity.
USER
F
USER
F
TARE
USER
F
fixed
blinking
blinking
blinking
TARE
TARE
USER
F
TARE
USER
F
5 times
USER
F
TARE
blinking
blinking
blinking
fixed
fixed
fixed
Continue inputing the desired
capacity using the
USER
key
for scrolling the number and
the
TARE
key to store the
number.
15) Finalize the capacity value
by pressing the
TARE
key on
an unblinking display. In our
example, once the number
2500 is fixed on the display,
press
TARE
to store the
capacity value.
16) Next the scale division size
‘d’ is set. Press
TARE
to
begin.
In this example we’ll set
the ‘d’ to 2 units.
17) Select the
USER
key to
scroll through the
recommended scale
divisions.
The first ‘d’ offered is
the standard division for the given
capacity. Setting a ‘d’ size that
results in total resolution higher than
1:5000 is not recommended for
stability reasons.
18) When the desired scale ‘d’
is displayed, press
TARE
.
The UnLd display
appears and the scale is
ready for calibration.
Follow the standard
calibration procedure
starting at step 3.
TARE
G
TARE
blinking
USER
F
blinking
USER
F
XQ/G
TARE
Capacity is set.
‘d’ is set.
Proceed to Standard
Calibration starting at Step 3.
Initial Calibration, Continued
5.2 Guidelines for Capacity and Resolution
Crane scales are subject to forces that regular floor scales do not see. Many bridge
cranes, hoist cranes, and mobile cranes lack rigidity and tend to bounce or swing
when loads are lifted. For this reason, MSI recommends that resolution is kept in the
1:2000 to 1:3000 range. Some improvement in stability can be achieved by increasing
the filtering. However, you should never program resolution that is far greater than
you need. If the MSI-3460 display is never stable, it is recommended that the
resolution is reduced and/or filtering increased.