GFS2102™ OPERATION AND MAINTENANCE MANUAL
© 2007 DH Instruments, a Fluke Company
Page 10
The three leg design of the cylinder support and the custom balance tray make up a locating
system for the reference gas cylinder so that it is placed on the balance tray in the same way
each time it is set down, to optimize the repeatability of mass measurements. The foot of
each leg of the cylinder support is a ruby sphere which is press-fit into the steel support leg.
The spheres help to minimize friction as the reference gas cylinder assembly is placed on the
balance tray and guided into its resting position.
Figure 7
. Reference gas cylinder support
The cylinder support is made of stainless steel legs threaded into a machined aluminum
body. Six threaded, spring-loaded pins located around the top ring of the cylinder support
are used to attach the support to the reference gas cylinder. Rubber pads are used to
protect the cylinder from damage where the pins make contact.
2.2.3
REFERENCE GAS CYLINDER CONNECTOR
The reference gas cylinder connector is a threaded cylinder plug that provides the connection
to the cylinder’s regulator assembly and also has a built-in fill port and valve so that the
cylinder can be filled without removing the regulator assembly.
Figure 8.
Reference gas cylinder connector
1.
Fill valve
3.
Regulator stem port
2.
Fill port