6
Quick Results Guide
Connecting Remote PreAmp to the mainframe
WARNING
Potentially hazardous source voltage is routed from the mainframe to the
Remote PreAmp via the preamp cable. Adhere to the following safety precau-
tions to prevent electric shock:
The SourceMeter must be turned off before connecting (or disconnecting) the
Remote PreAmp to the mainframe.
When not using the Remote PreAmp, disconnect the preamp cable at the rear
panel of the mainframe. DO NOT leave the preamp cable connected to the
mainframe if the other end is not connected to the Remote PreAmp.
ALWAYS re-install the plastic safety cover onto the mainframe preamp con-
nector whenever the Remote PreAmp is not being used.
Turn off the Model 6430 power, then use the supplied preamp cable to connect the
Remote PreAmp MAINFRAME connector to the mainframe REMOTE PreAmp
connector.
Source-measure terminals
The Model 6430 can be used with or without the Remote PreAmp. Table 1 lists each
mainframe and equivalent PreAmp terminal. Figure 5 shows the basic input-output
configuration.
Table 1
Terminal equivalency between mainframe and Remote PreAmp
Mainframe terminal
Equivalent remote PreAmp terminal
INPUT/OUTPUT HI
INPUT/OUTPUT LO
4-WIRE SENSE HI
4-WIRE SENSE LO
V,
GUARD
GUARD SENSE
Chassis ground (screw)
IN/OUT HI
IN/OUT LO
SENSE HI
N/A
GUARD (cable guard only)
N/A
N/A
N/A = Not available at Remote PreAmp.
