Fluke 2635A, Руководство пользователя

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2635A
Users Manual
2-10
Configuring a Channel to Measure AC Volts
Perform the procedure in Figure 2-5 to configure a channel for measuring ac volts. In
preparation, the instrument must be in the inactive mode (not scanning or monitoring)
and the desired channel must be selected (see Figure 2-3). To exit at any time (changes
not saved), press the
C
key.
Restrictions
Maximum Input. The maximum voltage inputs are 300V ac (rms) for channels 0, 1, 11,
and 150V ac (rms) for channels 2 to 10, and 12 to 20.
Frequency. The frequency range for maximum voltage inputs is 20 Hz to 100 Hz. Refer
to Appendix A for derated voltage inputs for frequencies between 100 Hz and 100 kHz.
FUNC
ENTER
SET FUNC
OFF
°
F [
°
C]*
Hz
Ω
VAC
V DC
Auto
300.00 V **
150.00 V ***
30.000 V
3.0000 V
300.00 mV
ENTER
SET FUNC
Typical
Required
Selecting the AC Volts Mode. Press the FUNC
key to access the SET FUNC (Set Function)
menu. Press the up/down arrow keys until VAC
(Volts AC) is displayed, then press the ENTER
key.
Selecting the Measurement Scale. Select a
fixed scale or Auto (autoranging). A fixed scale
indicates an upper measurement limit. For
example, the 30.000 V scale measures 30 volts
or less. Measurements beyond the scale limit will
cause an OL (overload) display. The x1 (unity or
x 1) multiplier indicates a reading in volts ac; the
m (milli or x .001) multiplier indicates a reading in
millivolts ac.
In Auto (autoranging), the instrument chooses the
scale for the best measurement resolution.
When the scales are changed, the scan is
momentarily slowed. * Depends on
temperature scale.
** Channels 0, 1,
and 11.
*** Channels 2 to
10, and 12 to 20
.
op17f.eps
Figure 2-5. Configuring a Channel to Measure AC Volts