Fluke 8845A - Using the Configure Command

8845A/8846A
Programmers Manual
38
Note
Issuing a MEASure? command without specifying a function, puts the
Meter into volts dc and triggers a measurement. You must specify a range
to use a resolution parameter.
Example MEAS:volt:ac? 10 = Returns a measurement after configuring the
Meter for volts ac and setting the range to the 10
volt range.
MEAS:diod? ON = Sets diode function using low current and returns
the diode measurement. 9.90000000E+37 is the
value returned for an open diode.
Notes [1] For ac measurements, resolution is fixed at 6½ digits. The resolution
parameter only affects the front panel display.
[2] For frequency measurements, the multimeter uses one “range” for all
inputs between 3 Hz, and 300 kHz. With no input signal applied,
frequency measurements return zero.
[3] For period measurements, the multimeter uses one “range” for all
inputs between 0.33 seconds, and 3.3 µsec. With no input signal
applied, period measurements return zero.
[4] The range and resolution are fixed for temperature measurements.
However, placing PT100_385 or PT100_392 into the range field will
set the RTD type. Placing CUST1 into the range field will cause the
Meter to use the values set into the R
0
and Alpha parameters.
[5] The range and resolution are fixed for diode test: 1 Vdc range and 5½
digits. When set to ON, the low current parameter sets the diode test
current to 0.1 mA. When OFF, the current is 1 mA. When set to ON,
the high voltage parameter sets the diode test voltage to 10 volts. When
OFF, the voltage is 5 volts. To specify a diode test voltage, you must
also include ON or OFF for the low current parameter.
[6] The range and resolution are fixed for continuity tests: 1 kΩ range and
5½ digits.
Using the CONFigure Command
The CONFigure command allows more configuration control than the MEASure
command. As with the MEASure command, the CONFigure command presets the
Meter’s parameters for the desired configuration (See Table 18). However, a
measurement does not start automatically, and therefore affords the opportunity to change
measurement parameters prior to triggering a measurement.
The CONFigure command is very useful when most of the parameters preset by
CONFigure are what you want and you only need to change one or two parameters. The
SENSe:FUNCtion command provides a means of changing a function’s parameters.
Other commands, such as INPut, SENSe, CALCulate, and TRIGger allow for more
detailed control of the Meter’s parameters.
The CONFigure command does not initiate a measurement and will need to be followed
by READ? command, or the INITiate and FETCh? commands.