Sartorius Combics CAW1P Operating Instructions Manual page 58

Operation
Minimum Load for Initialization
Decimal Places
Parameter for Saving Weight Values
Measuring with Two Weighing Platforms
58 Operating Instructions Combics Indicators
You can set the minimum load here, i.e. the load that must be placed on the
weighing platform in order to carry out the application. If the load on the platform
is too light, the following will occur:
– Error code Inf 29 appears,
– The weighing platform is not initialized,
– The preset reference sample quantity is saved.
Setting: Applic./Applic.1/neutr.m/Min.init menu item 3.6.
The minimum load can be set in 10 steps from 1 to 1000 digits (see available
parameters). The "digits" here refer to the scale intervals for the connected weighing
platform. If the interval of the connected platform is 1 g, for example, and 1000
digits are required, you must place at least 1000 g (= 1000 intervals =1000 digits)
on the weighing platform for initialization.
Resolution The resolution indicates the accuracy used to determine the reference weight.
The default setting is "display resolution." The resolution is increased when
"10-fold" or "100-fold" is selected. "10-fold" increases the resolution of the net
value by one step (display resolution x 10), "100-fold" increases it two steps
(display resolution x 100).
Setting: Applic./Applic.1/neutr.m/RESOLUT menu item 3.9.
In neutral measurement, not only whole numbers but also decimal numbers
(for example, 1.25 o electrical cabling) can be displayed. The number of decimal
places displayed can range from none up to 3 places.
Setting: Applic./Applic.1/neutr.m/DEC.PLCS menu item 3.10.
The weight on the platform is saved as a reference value as soon as the platform has
stabilized. "Stability" is defined as the point at which the fluctuation of a measured
value lies within a defined tolerance. The narrower the tolerance, the more stable the
platform is at "stability".
The "increased stability" setting has a lower tolerance so that the average piece
weight saves is more accurate and the results more reproducible; however, the
measurement time can take longer.
Setting: Applic./Applic.1/neutr.m/SAVE WT. menu item 3.11.
You can use two weighing platforms simultaneously with the Neutral Measurement
application. When using two platforms, you can choose from the following
operating modes:
– Counting with two platforms of the same type
– Counting with one reference platform and one weighing platform
Neutral measurement with two weighing platforms
Use this mode to measure different types of sample material with different weights.
For example, measure the lighter-weight samples on one platform and the heavier
samples on another. You can define one of the two scales as the reference scale.
The reference scale is the first scale active when you switch on the device, regardless
of the setting for automatic initialization of the Neutral Measurement application.
Neutral measurement with one reference platform and one weighing platform
In this operating mode, the reference platform is a high-resolution weighing
platform with a relatively low maximum capacity. The other platform is used for
weighing heavier samples, and has a high capacity with a relatively low resolution.
This allows you to both determine the reference piece weight with high resolution;
i.e., very precisely, and to measure large samples, without requiring an expensive
high-resolution, high-capacity weighing platform.
The system can be configured to switch automatically to the reference platform for
initialization (the measured value line shows Ref). Following initialization, you can
switch to the counting platform.