AMH-38™ AND AMH-100™ OPERATION AND MAINTENANCE MANUAL
vertical sides. Use the 2.5 mm allen wrench supplied in the AMH accessories
to loosen the set screws until they extend just beyond side of the PG7000
Platform.
Remove the mass lifting shaft:
Use the 3 mm allen wrench supplied in the
AMH-38 accessories to loosen and unscrew the assembly. NOTE THAT
SHAFT HAS A LEFT HAND THREAD SO IT MUST BE ROTATED
CLOCKWISE TO LOOSEN IT. Slip the shaft up and out of the mass
handler.
Lift the AMH-100 off of the PG7000 Platform:
Grasping the AMH-100 by
the horizontal platform in its middle, lift the AMH-100 straight up until it
clears the masses and set it on a flat surface. The AMH-100 mass handler
weighs about 12 kg (25 lb.).
3.2.3
REGULAR MASS TO PRESSURE OR PRESSURE TO
MASS OPERATION
See the PG7000 Operation and Maintenance Manual, General Operation, for details on
PG7000 operation. If the PG7000 is equipped with AMH, AMH automatically loads the
requested mass values transparently to the operator.
Generally, the PG7000 is used to set pressures by loading mass onto the piston and
adjusting the pressure under the piston to float the piston. The PG7000 supports this
operation locally from its main run screen in pressure entry or mass entry mode (see the
PG7000 Operation and Maintenance Manual, [M or S]). In pressure entry mode, when AMH
is installed and initialized, when the operator enters the pressure to set, the corresponding
mass load is loaded automatically with the AMH’s 0.1 kg mass loading resolution. If the
PG7000 is set for finer than 0.1 kg resolution (see the PG7000 Operation and Maintenance
Manual, [RES], the operator is prompted to load a trim mass value manually. In mass entry
mode, if a mass value with resolution higher than 0.1 kg is entered, after AMH loads the
value within 0.1 kg, the operator is prompted to load the remaining trim mass value manually.
Do not put your fingers or anything else beneath the AMH trim mass tray. AMH may
lower up to 100 kg (220 lbs) onto anything that is under the trim mass tray. This could
cause injury and/or damage.
3.2.4
DIRECT CONTROL OF AMH FUNCTIONS
In normal PG7000 operation, the AMH mass handler is operated transparently to the
operator when a mass change is necessary.
For AMH to be operated it must first be initialized by selecting an AMH mass set (see
PG7000 Operation and Maintenance Manual, Select Mass Set.
The status of the AMH (current masses loaded) can be viewed and its operation controlled
directly using
[SPECIAL]
,
<8AMH>
.
Select
<1status>
to view which AMH masses are loaded.
Select
<2control>
,
<1up/down>
to raise and lower the mass load without changing the
selected masses.
Select
<2control>
,
<2discreet>
to select specific masses to load and unload.
Select
<2control>
,
<3loadall>
to clear the AMH and load all the masses on the piston. This
is the condition used to remove and install the AMH. In this state, the AMH retains no
masses.
Select
<2control>
,
<1unloadall>
to clear the AMH and unload all the masses from the
piston. In this state, the AMH retains all the masses.
© 2007 DH Instruments, a Fluke Company
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