Fluke 45 - Manual (Page 81)

45
Users Manual
5-22
Function Commands and Queries
The commands in Table 5-11 relate to measurement functions. See Table 5-13 for ranges
and measurement rates. Refer to Chapter 3 for a detailed description of each function.
Commands under Primary Display and Secondary Display cause functions to be
performed on the primary display or secondary display, respectively.
Table 5-11. Function Commands and Queries
Commands
Primary
Display
Secondary
Display
Function
AAC
AACDC*
ADC
—
CONT
DIODE
FREQ
FUNC1 ?
OHMS
VAC
VACDC*
VDC
AAC2
—
ADC2
CLR2
—
DIODE2
FREQ2
—
FUNC2?
OHMS2
VAC2
—
VDC2
AC current
AC plus DC rms current. Available in the primary display only.
DC current
Clears measurement from secondary display if one shown
Continuity test. Available in the primary display only.
Diode test
Frequency
Meter returns the function selected for the primary display as
command mnemonic.
EXAMPLE: If frequency is selected for the primary display,
"FUNC1?" returns "FREQ".
Meter returns the function selected for the secondary display as
command mnemonic. If the secondary display is not in use, an
Execution Error is generated.
EXAMPLE: If frequency is selected for the secondary display,
"FUNC2?" returns "FREQ".
Resistance
AC volts
AC plus DC rms volts. Available in the primary display only.
DC volts
* If AACDC or VACDC is selected in the primary display, no other function can be selected for the
secondary display. An execution error is generated if this is attempted.
Function Modifier Commands and Queries
The commands in Table 5-12 relate to the function modifiers. A function modifier causes
the meter to modify the normal operation of a measurement function (or perform an
action on a measurement) before displaying a reading. For example, the relative modifier
(REL) causes the meter to display the difference between a measured value and the rela-
tive base. The results of function modifier commands can only be shown in the primary
display. Refer to Chapter 3 for a more information about each function modifier.