Specifications

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3BUS 208 000 R1301120 Measurement Setup
Setup of Customer Units
Ream Size
The ream size conversion factor converts the internal computation of basis weight
from grams per square meter (gsm) to customer units of pounds per ream. If
customer units are to be gsm, the conversion factor is 1.0. Consult the Calibration
Report for the correct value and enter it into the software variable name reamSize.
Ream size is, by default, controlled from the Scanning Platform Basis Weight Health
Report. It is possible to have the Host Computer determine the Ream Size by
changing a flag called hostDefinedReamSize in the pmmSensor01 object using the
inspect utility. If this flag is set to a “1”, the ream size will be determined by what
the host sends down at a grade change or a PMMRLD command. If it is a “0”, the
default condition, then the Health Report controls it exclusively. It is still possible
to temporarily change it from the Health Report as shown below, however, care must
be taken to return it to its original value when done. This feature is only available
on Software Release 280.2 or later, and it will only function if the host has been
modified to use it.
Changing Ream Size
1. Access the Basis Weight Health Report from the Service Workstation.
2. Click the Measurement tab.
3. Click the Current tab.
4. Click the white field for Ream Size.
5. Type the desired ream size.
Apparent Density
Apparent density is a computation of basis weight divided by caliper. It is presented
on the Host computer display in LMR units. This is weight per Mil-Ream. The
default units in the software are metric (grams per micron-square meter). This is
controlled by an instance variable called customerUnitsConversionFactor in the
pmmApDens01 object. For metric systems, the value is 1.0. For English systems,
the value will depend upon the ream size and is governed by the following algorithm:
customerUnitsConversionFactor = 0.0052 * reamSize
Using the above algorithm, the computed value for customerUnitsConversionFactor
should be entered into the system using the inspect utility and typing the following
at the I>:
()[pmmAppDensity01 customerUnitsConversionFactor:x.x]
and then stored on the diskette to the PMM community by using the gstore utility.
To make the change effective without restarting the system, simply initiate a small
edge change. The recalculation of the customerUnitsConversionFactor is included
in the edge change adjustment activity.