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Model 3476A
SECTION
I
GENERAL INFORMATION
1-1. INTRODUCTION.
1-2. This section contains general information concerning
the -hp- Model 3476A Multimeter. Included is an instru-
ment description, specifications, information about instru-
ment and manual identification, option and accessory infor-
mation, and safety considerations.
1-3. DESCRIPTION.
1-4. The -lip- Model 3476A Multimeter is a 3 digit, five
function, autoranging instrument which measures ac and
dc voltage, ac and dc current, and ohms. A HOLD function
Table 1-1.
is provided to enable the user
ments without changing ranges.
mately
three
readings
per
remainder of this manual, the
referred to as Multimeter.
1-5. SPECIFICATIONS.
Section I
to make repeated measure-
The sample rate is approxi-
second.
Throughout
the
3476A Multimeter will be
1-6. Specifications for the Multimeter are listed in Table
1-1. These specifications are the performance standards or
limits to which the Multimeter can be tested. Any changes
in these specifications due to manufacturing changes, design
or traceability to the National Bureau of Standards will be
Specifications.
DC VOLTMETER
Ranges: ± 0.11 V, 1.1 V, 11 V, 110 V, 1100 V ( 1000 V Maximum Input)
Accuracy ( 20
°
C to 30
°
C):
Ranges
Accuracy
(90- Day Calibration Cycle)
Accuracy
(1- Year Calibration Cycle)
0.11 V
1.1 V, 11 V
110 V, 1100 V
± ( 0.3% of reading + . 2% of range) ± ( 0.5% of reading + 0.2% of range)
± ( 0.3% of reading + 0.1% of range) ± ( 0.5% of reading + 0.1% of range)
± ( 0.4% of reading + 0.1% of range) ± ( 0.6% of reading + 0.1% of range)
Common Mode Rejection: > 100 dB at 50 Hz, 60 Hz ( 1 Val unbalanced)
Input Resistance: 10
roll ±
5%
Input Protection: < 1000 V ( Continuous)
Temperature Coefficient: ± ( 0.05% of reading + 0.02% of range)/
°
C
AC VOLTMETER
Ranges: 0.11 V rms, 1.1 V rms, 11 V rms, 110 V rms, 1100 V rms ( 707 V rms Maximum)
Accuracy ( 20
°
C to 30
°
C):
Accuracy
(90- Day Calibration Cycle)
Ranges'
45 Hz to 2 kHz
2 kHz to 5 kHz
5 kHz to 10 kHz
1 1 V rms to 1100 V rms
0.11
V rois
± ( t5% of reading
+ 0.4% of range)
± ( 2% of reading
+ 0.6% of range)
± ( 3% of reading
+ 0.6% of
range)
•± ( 5% of reading
+ 0.6% of range)
± ( 8% of reading
+
1.0% of
range)
± ( 18% of readiem
+ 1.0% of range)
Accuracy
(1- Year Calibration Cycle)
45 Hz to 2 kHz
2 kHz to 5 kHz
5 kHz to 10 kHz
1.1 V rms to 1100 V rms
0.11 V rms
± ( 1.7% of reading
+ 0.5% of range)
± ( 2.2% of reading
+ 0.7% of range)
± ( 3.2% of reading
+ 0.7% of range)
± ( 5.2% of reading
+ 0.7% of range)
± ( 8.2% of reading
+ 1.1% of range)
± ( 18.2% of reading
+ 1.1% of range)
•Ranges usable from 0.03 to full scale.
Common Mode Rejection: (1 kn. balanced) > 80 dB at 50 Hz and 60 Hz
I nput Resistance: 10 Mil ± 5%
Input Capacitance. < 30 pF
I nput Protection: < 707 rms continuous
Temperature Coefficient: ± ( 0.05% of reading + 0.05% of range)/
°
C
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