Micromeritics SediGraph III 5120 User Manual

Interlock Circuitry SediGraph III 5120 Service
2-16 Mar 2010
Interlock Circuitry
The interlock circuitry in the 5120 is very similar in operation to the 5100.
• Top panel switches - there are two top panel magnetic interlock switches which have
been moved to the mid section of the right hand side panel of the 5120 (due to cabinet
construction). Both of these switches must be on to generate X-rays. There is an
interlock defeat tool similar to the 5100 top panel interlock defeat tool for use in
servicing the 5120.
• There are also two magnetic switches on the rear panel, which have to be on to generate
X-rays.
• A magnet (located on the Analysis module door) and reed door switch (located on the
side panel of the Analysis module) form a series circuit that requires the door to be
completely closed before X-rays are generated.
• There are two magnets located at the rear of the fluid module that form an X-ray
interlock. For X-ray generation the fluid module must be installed in the instrument.
• The X-ray On/Standby lamps (PN 003/39046/00) form a series circuit and must be
complete to generate X-rays. The X-ray On lamp must be operable and the key-switch
must be cycled (Stand-by then back On) whenever an over-current occurs or the top
panel has been removed. Either of these conditions will cause the Stand-by light to
come on, and will not allow the generation of X-rays until the key-switch has been
cycled. When the switch is ON, X-ray generation is allowed, when in the Stand-by
position, X-rays cannot be generated.
•

Micromeritics SediGraph III 5120 Specifications

General

Brand	Micromeritics
Model	SediGraph III 5120
Category	Measuring Instruments
Language	English