Fluke PG9000 Series, Operation And Maintenance Manual

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PG9602™ OPERATION AND MAINTENANCE MANUAL
© 2011 Fluke Calibration Page
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The main masses are loaded onto the mass loading tray in the opposite order
that they are loaded onto the PG9000. To install the masses on the mass
loading tray, proceed as follows:

Open the shipping cases.

Install the main masses: The main masses (a series of 10 kg or 5 kg
masses) are vertically stacked on the mass loading spindle in reverse order
with the largest sequence number on the bottom of the stack and sequence
number 1 at the top.

The main masses are sequentially numbered to assist with identifying the
masses that are nominally the same. The sequence begins with number 1
and ends with number 8 (for a 100 kg MS). The
main mass with the largest
sequential number is installed first at the bottom of the stack. The rest of the
main masses should be stacked upwards in descending order ending with
main mass sequential number 1 . Be careful not to confuse the M ake Up
mass (refer to next item) with main mass 1 .

Install the other mass: The Make Up mass is a single mass sequentially
numbered 1 . It has the same diameter as the main masses but is thinner. It
is a nominal 9 kg mass. A 55 kg or smaller mass set uses a 4 kg make up
mass. The 9 kg Make Up mass is placed on top of the main mass stack. It is
always the top of the stack.
The idea of the make up mass is that when a mass load of 10 kg or greater is
required, the value of the make up mass plus the mass of the piston and bell
equal a nominal 10 kg. From an operational position this simplifies the mass
accounting responsibilities. From a visual perspective, the makeup mass
looks similar to the main masses and allows the operator to look at the mass
load and quickly sum the total nominal load.
Figure 7. Mass sizes

Install the fractionary masses: The fractionary masses are all the masses
of lower value than the 10 kg main masses and the 9 kg Make Up mass.
These are masses of 5 kg and under. Fractionary masses of 1 to 5 kg are
discs with a central hole. Fractionary masses of 100 to 500 g are solid, small
diameter pucks. Fractionary masses of 50 g and under are packed and
stored in their own separate storage case, they are commonly referred to as
trim masses.
Fractionary mass discs and pucks are installed vertically in the corresponding slots
in the mass loading tray. Use a consistent setup for the sequence number
when there are two masses (e.g., always load sequential number
1 in the front).