HP / Agilent 3465A 4 1/2 DIGIT DMM

The HP/Agilent 3465A is a 4 1/2 digit digital multimeter designed for general-purpose bench and field measurements. It provides five core measurement functions—DC voltage, AC voltage, DC current, AC current, and resistance—with a 4 1/2 digit LED display and 2.5 readings per second sample rate. The instrument delivers midrange DC accuracy of ±0.02% ± 1 digit and resolves down to 1 µV on the 20 mV DC voltage range.

## Technical Specifications

**Voltage Measurement**
• DC Voltage: 10 mV, 100 mV, 1 V, 10 V, 100 V, 1000 V ranges with 100% overrange on all except 1000 V
• AC Voltage: 100 mV, 1 V, 100 V, 1000 V ranges; maximum 500 VAC rms (800 V peak); accuracy ±(0.15% + 0.05% of reading); 100% overrange to 10 kHz, linear decrease to 0% at 20 kHz
• Frequency Response: 40 Hz to 20 kHz

**Current Measurement**
• DC/AC Current: 200 µA to 2000 mA ranges

**Resistance Measurement**
• Ranges: 200 Ω, 2 kΩ, 20 kΩ, 200 kΩ, 2000 kΩ, 20 MΩ
• Open-circuit voltage maximum 5 V on most sensitive range

## Key Features

• 4 1/2 digit LED display with overload indicator
• Dual power architecture: rechargeable NiCad batteries (standard) or four “D” type dry cell batteries (Option 002)
• AC line operation: 86–127 V or 172–254 V, 48–66 Hz
• Low battery voltage detection with automatic shutdown
• BCD output interface for data accumulation and logic signal processing
• Rugged construction for field durability

## Typical Applications

General-purpose electrical measurement, bench testing, field service diagnostics, and routine circuit characterization across voltage, current, and resistance parameters.

## Compatibility & Integration

The 3465A provides BCD output for integration with external data processing equipment. Operates on AC line power or portable battery sources; optional Model 82002A Battery Charger/AC Adapter supports dry cell battery operation.