AMH-38™ AND AMH-100™ OPERATION AND MAINTENANCE MANUAL
3.2
OPERATION
Once the AMH mass set has been installed (see Section 2.6) and the AMH mass handling system has
been initialized (see Section 2.7) and installed, regular operation of the AMH is controlled by the P7000
Platform in response to local commands entered on the PG Terminal or remote commands received over
the PG7000 Platform’s COM1 or IEEE-488 interface.
Generally, AMH operation is transparent to the operator. The AMH system changes the mass load on
the piston automatically as needed when a pressure or mass load setting command is given to the
PG7000. The AMH mass handler and mass set are removed only when it is necessary to access the
piston-cylinder assembly, for example to change ranges.
Subsections of this section describe various aspects of AMH operation.
See Sections 3.2.1 and 3.2.2 for instructions on installing and removing the AMH mass handler.
See Section 3.2.3 for information on regular pressure to mass or mass to pressure operation.
See Section 3.2.4 for information on controlling the AMH mass handling system directly, outside of
pressure to mass or mass to pressure operation.
See Section 3.2.5 for information on making and breaking the reference vacuum in AMH-38.
See Section 3.2.6 for information on accessing the piston-cylinder module when an AMH is installed.
See Section 2.3.7 and 3.2.8 for a description of the indications of the AMH LED and a listing of AMH
related error messages.
See Section 4 for information on controlling PG7000 equipped with AMH by remote commands from a
computer.
3.2.1
INSTALLING THE AMH MASS HANDLER ON THE PG7000
PLATFORM
To avoid possible damage to the AMH automated mass handler, always perform the
initial start/verification procedure described in Section 2.7 BEFORE attempting to install
AMH on the PG7000 Platform. Failing to do so, may result in attempting to install AMH
with mass selection columns or pins in the incorrect position, which can damage the
AMH mass handler.
© 2007 DH Instruments, a Fluke Company
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