Agilent HP 34401A
Overview of the HP 34401A Digital Multimeter
- Status: Obsolete, Discontinued
- Similar Models: HP 34401A, Agilent 34401A, Keysight 34401A
- Replaced by Keysight 34461A and Keysight 34465A
The HP 34401A is a versatile and reliable digital multimeter widely used in various electrical and electronic testing applications. It is known for its high accuracy, extensive measurement capabilities, and robust design, making it a preferred choice for professionals in fields such as electronics, electrical engineering, and laboratory testing.
Features of the HP 34401A
- High Accuracy and Precision
- DC voltage accuracy: Up to 0.0035% for 1-year specifications.
- 6.5-digit resolution for precise measurements.
- Measurement Capabilities
- Voltage: Measures AC and DC voltage up to 1000V.
- Current: Measures AC and DC current up to 3A.
- Resistance: Measures resistance from 100 μΩ to 100 MΩ.
- Frequency: Measures frequency from 3 Hz to 300 kHz.
- Capacitance: Includes capacitance measurement capabilities.
- Continuity and Diode Test: Built-in functions for testing continuity and diodes.
HP 34401A digital multimeter specifications:
| Specification Category | Details |
|---|---|
| Measurement Functions | |
| DC Voltage Range | 100 mV to 1000V |
| AC Voltage Range | 100 mV to 750V |
| DC Current Range | 100 μA to 3A |
| AC Current Range | 100 μA to 3A |
| Resistance Range | 100 Ω to 100 MΩ |
| Frequency Range | 3 Hz to 300 kHz |
| Capacitance Range | 1 nF to 10,000 μF |
| Accuracy | |
| DC Voltage Accuracy | ±(0.0035% + 0.0005% of reading) |
| AC Voltage Accuracy | ±(0.06% + 0.03% of reading) |
| DC Current Accuracy | ±(0.05% + 0.04% of reading) |
| AC Current Accuracy | ±(0.15% + 0.05% of reading) |
| Resistance Accuracy | ±(0.01% + 0.002% of reading) |
| Frequency Accuracy | ±(0.01% + 0.003% of reading) |
| Capacitance Accuracy | ±(1% + 0.5% of reading) |
| Display | |
| Display Type | Digital LCD |
| Display Digits | 6.5 digits |
| Display Count | 1,200,000 counts |
| Special Features | |
| Auto-ranging | Yes |
| True RMS | Yes |
| Min/Max Recording | Yes |
| Data Logging | Yes, with built-in memory |
| Connectivity and Interfaces | |
| Interfaces | IEEE-488 (GPIB), RS-232 |
| Remote Control | Yes |
| Power | |
| Power Supply | 100V/120V/220V/240V AC, 45-66 Hz |
| Environmental Specifications | |
| Operating Temperature | 0°C to 55°C (32°F to 131°F) |
| Storage Temperature | -40°C to 75°C (-40°F to 167°F) |
| Humidity | 80% up to 40°C; 70% up to 55°C |
| Physical Specifications | |
| Dimensions | 88 x 213 x 348 mm (3.5 x 8.4 x 13.7 inches) |
| Weight | 3.6 kg (8 lbs) |
| Safety and Compliance | |
| Safety Rating | CAT I 1000V, CAT II 300V |
| Compliance | IEC 61010-1, UL, CSA, and CE |
- User Interface
- Clear and bright 6.5-digit display for easy reading of measurements.
- Intuitive front panel with straightforward operation.
- Connectivity and Compatibility
- IEEE-488 (GPIB) and RS-232 interfaces for remote control and data logging.
- Compatible with various test and measurement software.
- Data Logging and Storage
- Built-in memory for storing measurement data.
- Allows for efficient data logging and analysis.
- Robust Design
- Durable and reliable construction for long-term use.
- Suitable for both bench-top and field applications.
- Additional Features
- Auto-ranging capability for ease of use.
- True RMS AC voltage and current measurements for accurate readings.
- Multiple measurement functions integrated into one device.
Summary
The HP 34401A digital multimeter is a high-performance instrument designed for precise and reliable electrical measurements. Its extensive features, high accuracy, and robust design make it a valuable tool for professionals in various technical fields.
NOTE: High performance test equipment may be worthy of repair and calibration even though it has been labeled obsolete and is discontinued.
