Remote Operations Using the IEEE 488 Interface
Syntax Diagrams of Major 8508A Functions
4
Nrf
A numeric value that selects the range for the expected signal. For example, an Nrf of 2,
10, or even 15.6789, selects the 20 V range. Any valid numeric value cancels autorange.
AUTO
Selects the autorange mode where the multimeter will determine the appropriate range for
the measured signal.
If the signal exceeds the maximum capability then
RANGE OVERLOAD appears on the
front panel, and the appropriate bit is set in the device status registers.
FILT_ON / FILT_OFF
FILT_ON
inserts a hardware analog filter into the signal path.
RESL5 / RESL6 / RESL7 / RESL8
Sets the resolution of the measurement to 5.5, 6.5, 7.5 or 8.5 digits.
FAST_ON / FAST_OFF
FAST_ON
Reduces the A-D integration time, for faster conversions.
TWO_WR
Requires only a connection to the input terminals.
FOUR_WR
Requires a connection to the input terminals and to the sense terminals.
Power On and Reset Conditions
1kV, FILT_OFF, RESL7, FAST_ON, TWO_WR
AC Voltage
The following commands are used to select the
ACV function and set its configuration.
ACV
Nrf
AUTO
FILT100HZ
FILT40HZ
FILT10HZ
phs
ACCP
DCCP
TFER_OFF
TFER_ON
RESL6
RESL5
FILT1HZ
SPOT_ON
SPOT_OFF
TWO_WR
FOUR_WR
,
adj210f.eps
AC Voltage
4-11
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