5-8 Return to Section Topics 6482-901-01 Rev. A / August 2012
Section 5: Relative, Math, Ratio, and Delta Model 6482 Dual-Channel Picoammeter / Voltage Source Reference Manual
Front panel RATIO and DELTA configuration
Using Table 5-6 as a guide, configure RATIO and DELTA functions as follows:
1. Press the CONFIG key then the RATIO or DELTA key to select the function to be configured.
2. Using the EDIT
and keys, place the cursor on the function, and then press the ENTER
key.
3. From normal display, press the RATIO or DELTA key to display the function reading.
4. To cancel the function and return to normal display, press the MSR1 or MSR2 key.
Remote RATIO and DELTA
Table 5-7 summarizes commands to control the RATIO and DELTA function through a remote
interface. See the :CALC5 and :CALC6 subsystems in Section 16 for detailed information.
*CALC1 (Channel 1 math) feeds into CALC3 (Channel 1 relative offset). CALC2 (Channel 2 math) feeds into CALC4 (Channel 2 rel-
ative offset). See CALCulate subsystems in Section 17 for details.
Table 5-6
RATIO and DELTA configuration menus
Configuration menu item Description
CONFIG RATIO
CONFIG RATIO BUTTON
MSR1/MSR2
MSR2/MSR1
CONFIG DELTA
CONFIG DELTA BUTTON
MSR1-MSR2
MSR2-MSR1
Configure RATIO function.
MSR1/MSR2 function.
MSR2/MSR1 function.
Configure DELTA function.
MSR1-MSR2 function.
MSR2-MSR1 function.
Table 5-7
RATIO and DELTA function commands
Command Description*
:CALCulate5:DATA?
:CALCulate5:FORMat <name>
:CALCulate5:STATe <state>
:CALCulate6:DATA?
:CALCulate6:FORMat <name>
:CALCulate6:STATe <state>
:FORMat:ELEMents:CALCulate
<name>
:INIT
Request ratio reading.
Set ratio function.
Name =C3C4 (CALC3/CALC4)
C4C3 (CALC4/CALC3)
Enable or disable ratio. State = ON or OFF.
Request delta reading.
Set delta function.
Name =C3C4 (CALC3-CALC4)
C4C3 (CALC4-CALC3)
Enable or disable delta. State = ON or OFF.
Define CALC data elements. Name =
CALCulate, TIME, or STATus.
Trigger CALC readings (must use before
sending CALCn:DATA?).
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