MP 26 Transmitter Installation and Calibration Manual
Minebea Intec
4. Calibration
4.1. General
Calibration of the scale must be followed by initial setting. After that the instrument can be
calibrated for the given weight or value. The key calibration terms are as follows.
FSD (Full-scale Deflection, Max)
The full-scale deflection (FSD) determines the maximum weight that can be measured. The
load cells perform best at 33 to 50 % of their full-scale capacity. Generally, it is recommended
to set the calibration weight or FSD below this weight range.
This is set in OuH.1 whose default value is OFF.
Dead Load
The value of the unloaded scale/empty hopper is the dead load. The input voltage equivalent
to this weight value is displayed/stored in percent. The default value is OFF.
During calibration, the user has to decide:
• To use the empty scale as dead load (normal case)
• To enter the dead load by value (if the scale cannot be unloaded or the value is known
from previous calibration)
If the dead load has to be modified (due to an increase/decrease in weight of the empty
scale), then the span must be modify accordingly. This is explained in the Chapter Adjusting
the Dead Load.
This is set in OuL.1 whose default value is OFF.
Span
The span indicates the equivalent input voltage between dead load and the scale FSD (full-
scale deflection); i.e. the difference between the load cell output at maximum load, Dmax,
and load cell output at minimum load, Dmin.
To Next Page
Loading...
Need help?
General
