VPG BHL Nobel AST 3, Operating Instructions, Quick Installation

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Operating instructions, Quick installation
14
Dead weight calibration
This is the most accurate calibration type. It requires that known weights
to at least two-thirds of the scale capacity are available.
Below, a dead weight calibration in two points is described.
Before editing of these parameters is started, set-up of common parameters,
described in point
1. – 8. on pages 7 – 10 should be performed.
9. Set the value for calibration point 1.
If the ‘Deadweight’ alternative was selected at 8. on page 10, next parameter
will be ‘Value cal. p.1’. This parameter defines the known load on the scale for
the lower calibration point.
Press
+
to get the parameter ‘Value cal. p.1’ displayed.
Value cal. p.1
X.XX kg
The displayed parameter value is the load on the scale that was set for the lower
calibration point in the last calibration, normally zero (= unloaded scale).
Press ENTER.
Value cal. p.1
XXXX.XXX kg
Actual measurement value for the scale is displayed (as a ‘live’ weight value)
with a cursor and one decimal more than what is set in parameter ‘Resolution’.
Check the load on the scale (normally unloaded).
Press ENTER again to make editing possible.
Value cal. p.1
+0000.00 kg
The displayed parameter value is the value for calibration point 1 from the last
calibration, with leading sign and a cursor.
The parameter value can be edited, according to point 6. on page 9 (numerical
parameter), to correspond to the actual load on the scale, normally zero.
Press ENTER for 2 seconds.
2 seconds
Value cal. p.1
X.XX kg
This finishes the editing and the load that is set for the lower calibration point
is displayed without cursor.