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The Hewlett Packard 3476A is a compact 3.5-digit, autoranging digital multimeter introduced in 1977, designed for general-purpose, portable use. It features an LED display, measures AC/DC voltage (110mV–1100V), current, and resistance (–) with a 10M input impedance. It runs on AC power or a built-in NiCd battery, known for its distinct, angled, compact design.
NOTE
- This unit doesn't not include probes. Accessories pictured with the multimeter are not included.
Hewlett Packard 3476A Digital Multimeter
Display
- 3½ digit LED display (often referred to as having 1100 counts).
Functions
- Measures AC/DC Volts, AC/DC Current, and Resistance (Ohms).
Autoranging
- Features automatic range selection, with a hold function.
Accuracy
- Basic DC accuracy is (0.3% reading + 0.1% range).
Design
- Compact, portable, with a built-in tilt bail.
Power
- AC line power or rechargeable NiCd battery pack (approx. 8-hour run time).
Input Protection
- Fused inputs, with some models lacking input fuses for all ranges.
Calibration
- Features real-time, automatic internal calibration for reduced maintenance, along with manual adjustments for DCV and ohms
DCV
Ranges
- 110mV to 1100V
Sensitivity
- 100μV
Basic accuracy
- +-(0.3% reading + 0.1% range)
Input resistance
- 10MΩ +- 5%
ACV
10kHz bandwidth
Ranges
- 1.1V to 1100V
Input impedance
- 10MΩ shunted by < 30pF
Resistance
Ranges
- 1.1KΩ to 11MΩ
Sensitivity
- 1Ω
DCI
Ranges
- 110mA, 1.1A
ACI
Ranges
- 110mA, 1.1A