Siemens Milltronics BW500/L - Online Calibration

Recalibration
7.5 Online Calibration
BW500 and BW500/L
Operating Instructions, 12/2016, A5E33482052-AD
85
7.5
Online Calibration
The Online Calibration feature may be used to routinely check, and if necessary adjust, the Span
calibration in
RUN
mode, without interrupting the material flow or process.
Note
Not available with BW500/L.
Insta
ll a weigh bin, (bin or silo equipped to
provide a 4 to 20 mA output proportional to
weight), preceding the material infeed.
Connect the weigh bin to one of the mA inputs
on the optional mA I/O board of the BW500:
either mA input 1, terminals 5 and 6; or m
A
input 2, terminals 7 and 8.
Install a material feed control device, prece
d-
ing the weigh bin.
①
Feeder
②
Max. (e.g. 90%)
③
High (e.g. 70%)
④
Reference weight: (the amount of material held between High and Low levels)
⑤
Low (e.g. 30%)
Note
•
Press the "PAR" key twice, to enter a parameter number directly.
•
Whenever you wish to change a value, press "ENTER" to enable the EDIT mode.