5492GPIB B&K Precision, 5492GPIB Datasheet - Page 46
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5492GPIB
Manufacturer Part Number
5492GPIB
Description
DMM BENCH 5 1/2DGT WITH GPIB CRD
Manufacturer
B&K Precision
Type
Digital (DMM)r
Specifications of 5492GPIB
Includes
Test Leads
Style
Bench
Display Digits
5.5
Display Type
VFD, Dual
Display Count
120000
Function
Voltage, Current, Resistance, Frequency
Functions, Extra
Continuity, dB, Diode Test
Features
Hold, Min/Max, RS-232 Port
Ranging
Auto/Manual
Response
True RMS
Accuracy
+/- 0.012 %
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
4-5
Measuring True RMS AC+DC
The meter can measure the true rms value of ac voltages and currents.
When
and
or
and
are pressed simultaneously, the
meter will measure the dc and ac signals alternatively then calculate and display the
ac+dc rms value by using the following formula:
2
2
(ac+dc) RMS =
dc
ac
Note: When voltage (ac+dc) measurement function is selected, the Vdc input impedance is paralleled
with an ac-coupled 1.1M ac divider.
!
Measurement example:
To take a true rms voltage ac+dc measurement on an ac signal, assuming the input
ac is 10V
1kHz sine wave ac signal and with a dc offset voltage +5 volts, the
rms
meter will read and display the results approximately as:
2
2
11.1803 volts
5
10
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