GFS2102™ OPERATION AND MAINTENANCE MANUAL
© 2007 DH Instruments, a Fluke Company
Page 184
The GFS Tools software will automatically operate the AMH to perform a zero and span test
of the balance, then calculate and apply a new
Mass Span Multiplier
under the
[Setup][Calibration][Mass/Time]
tab.
7.8.3
VERIFICATION BY MASS CARRIER
This section can be used to verify the repeatability and linearity of the balance over the range
of actual use (approximately 1.6kg to 2.3kg) for customer purposes such as an independent
uncertainty analysis of the GFS system. No internal or external adjustments are made to the
balance output by this operation.
This section requires the optional mass carrier MS-2101-CAR, three 200g weights, and one
100g weight. These items can be purchased as a mass set under MS-2102-0.7.
Run one of the
[Run][Run Test]
options in
GFS Tools
to activate the communications
interface to the balance and AMH. Display the balance interface by using the drop-down
arrow next the
GFS Run Screen
icon on the
Main Toolbar
and selecting
[Balance
Interface]
(see Section 5.1.4.2).
Operate the AMH from the
GFS Run Screen
window using the
Control Toolbar
to
removed all mass from the balance (see Section 5.1.5.2.3).
Disconnect the catenary tube and remove the Reference Gas Cylinder from the AMH.
Install the mass carrier in the AMH with the legs in the same orientaion as the Reference
Gas Cylinder would be.
Due to differences in manufacturing between the Refernce Gas Cylinder carrier and the
mass carrier some fine adjustment of the AMH may be required for proper operation.
Operate the AMH from the
GFS Run Screen
window using the
Control Toolbar
to lower
the mass carrier onto the balance (see Section 5.1.5.2.3). If a Balance Output window
displays a mass value near 1600g and stable within ±1mg then no alignment is
necessary. Otherwise refer to Section 3.3.12 for fine adjustment of the AMH position.
Using different combinations of the 100g and 200g weights, the span and repeatability of
the balance can be checked in 100g increments between approximately 1.6kg and 2.3kg
as desired for the purpose of the verification, and the balance output can be observed
from the Balance Interface window.
When switching back to the Reference Gas Cylinder from the mass carrier, refer to the
sections noted in step if re-alignment of the AMH is required for proper operation with the
Reference Gas Cylinder.