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The Keysight 34450A is a 5.5 digit benchtop digital multimeter that combines a wide range of measurement functions with a fast reading rate and a dual-display OLED interface. The instrument provides 11 measurement functions spanning DC and True RMS AC voltage and current, 2-wire and 4-wire resistance, frequency, continuity, diode test, capacitance, and temperature, with a 0.015% basic DC voltage accuracy specification.
The 34450A is positioned for general industrial and educational use, including production-line throughput applications, day-to-day bench measurement, and PC-controlled automated test. Its reading speed of up to 190 readings per second supports manufacturing throughput, and its 50,000-point data logging memory with built-in histogram and statistical functions enables on-instrument data analysis without requiring an external PC for routine review.
Keysight Technologies was established in 2014 as a spin-off from Agilent Technologies, which itself was spun off from Hewlett-Packard's test and measurement business in 1999. The 34450A is part of the bench DMM product line that traces back through this corporate lineage.
| Specification | Value |
|---|---|
| DC Voltage | |
| Ranges | 100 mV, 1 V, 10 V, 100 V, 1000 V |
| Best 1-Year Accuracy (23 °C ± 5 °C) | ±(0.015% reading + 0.005% range) |
| Input Impedance | 10 MΩ or > 10 GΩ (100 mV / 1 V ranges); 10 MΩ (10 V / 100 V / 1000 V) |
| Measuring Method | Sigma delta A-to-D converter |
| Input Protection | 1000 V on all ranges (HI terminal) |
| True RMS AC Voltage | |
| Ranges | 100 mV, 1 V, 10 V, 100 V, 750 V |
| Best 1-Year Accuracy (45 Hz – 10 kHz) | ±(0.2% reading + 0.1% range) |
| Frequency Range | 20 Hz to 100 kHz |
| Crest Factor | Maximum 3:1 at full scale |
| Input Impedance | 1 MΩ ± 2% in parallel with < 100 pF |
| Input Protection | 750 V rms on all ranges (HI terminal) |
| DC Current | |
| Ranges | 100 µA, 1 mA, 10 mA, 100 mA, 1 A, 10 A |
| Best 1-Year Accuracy | ±(0.05% reading + 0.007% range) |
| Shunt Resistance | 1 Ω (10 mA, 100 mA); 90 Ω (100 µA, 1 mA); 0.01 Ω (1 A, 10 A) |
| Input Protection | External 0.4 A, 500 V fuse (I terminal); Internal 11 A, 1000 V fuse (10 A terminal) |
| True RMS AC Current | |
| Ranges | 10 mA to 10 A |
| Best 1-Year Accuracy (45 Hz – 1 kHz) | ±(0.5% reading + 0.1% range) |
| Frequency Range | 20 Hz to 10 kHz |
| Resistance (2-Wire and 4-Wire) | |
| Ranges | 100 Ω, 1 kΩ, 10 kΩ, 100 kΩ, 1 MΩ, 10 MΩ, 100 MΩ |
| Best 1-Year Accuracy | ±(0.05% reading + 0.005% range) |
| Open Circuit Voltage | Limited to < 2.8 V |
| Input Protection | 1000 V on all ranges (HI terminal) |
| Frequency | |
| Input Range | 100 mV to 750 V; 10 mA to 10 A |
| Frequency Range | 20 Hz to 300 kHz (voltage); 20 Hz to 10 kHz (current); up to 1 MHz typical at 0.5 V on 100 mV / 1 V ranges |
| 1-Year Accuracy | ±(0.02% reading + 3 counts) |
| Measurement Method | Reciprocal counting technique |
| Gate Time | 0.1 second or 1 period of the input signal |
| Capacitance | |
| Ranges | 1 nF, 10 nF, 100 nF, 1 µF, 10 µF, 100 µF, 1 mF, 10 mF |
| Best 1-Year Accuracy | ±(1% reading + 0.5% range) |
| Temperature | |
| Range | −80.0 °C to 150 °C (−110.0 °F to 300.0 °F) |
| Probe Type | 5 kΩ thermistor probe (YSI 4407) |
| Accuracy | Probe accuracy + 0.2 °C / + 0.4 °F |
| Continuity / Diode Test | |
| Continuity Threshold | 10 Ω fixed |
| Diode Test Range | 1.0000 V at 0.5 mA |
| Response Time | Continuity: 165 samples/sec; Diode: 190 samples/sec (with audible tone) |
| Reading Rate (Maximum) | |
| DCV Fast Mode (USB) | 190 readings/sec |
| DCI Fast Mode (USB) | 190 readings/sec |
| ACV Fast Mode (USB) | 160 readings/sec |
| Triggering and Memory | |
| Samples per Trigger | 1 to 5,000 (typical), 1 to 50,000 (optional) |
| Trigger Delay | 0 to 3600 sec (100 µs step size) |
| Trigger Out | 3.3 V logic, negative pulse, approximately 3 µs pulse width |
| Non-Volatile Memory | 50,000 readings |
| Math Functions | |
| Functions | Null, dBm, dB, Min/Max/Avg, Hold, Limit Test |
| Data Log | Info, List, Histogram |
| Measurement Noise Rejection | |
| CMR (1 kΩ unbalance LO lead) | DC: 140 dB; AC: 70 dB |
| NMR (60 Hz / 50 Hz ± 0.1%) | Slow (5.5 digit): 60 dB; Medium (4.5 digit): 55 dB; Fast (4.5 digit): 0 dB |
| Interfaces & Programming | |
| Remote Interface | USB 2.0 Standard, GPIB IEEE-488 (optional), RS-232 Serial |
| Programming Language | SCPI-1994.0, IEEE-488.2; Fluke 45 and Fluke 8808A code compatibility |
| Display | |
| Display Type | Ultra-bright OLED with dual display capability |
| Resolution | 5.5 digit |
| General Characteristics | |
| Power Supply | 100 V / 120 V (127 V) / 220 V (230 V) / 240 V ± 10%, automatically sensed at power-ON |
| AC Line Frequency | 45 Hz to 66 Hz; 360 Hz to 440 Hz (100/120 V operation) |
| Power Consumption | 45 VA maximum, < 11 W average |
| Operating Temperature | Full accuracy 0 °C to 55 °C |
| Operating Humidity | Full accuracy to 80% RH for 0 °C to 30 °C; 40% RH for 30 °C to 55 °C (non-condensing) |
| Altitude | Up to 3000 meters |
| Storage Temperature | −40 °C to 70 °C |
| Measurement Category | CAT II 300 V; CAT I 1000 Vdc, 750 Vac rms, 2500 Vpk transient overvoltages; Pollution Degree 2 |
| Shock and Vibration | Tested to IEC/EN 60086-2 |
| Warm-Up Time | 90 minutes |
| Dimensions (H x W x D), Rack | 88.5 mm x 212.6 mm x 272.3 mm |
| Dimensions (H x W x D), Bench | 103.8 mm x 261.1 mm x 303.2 mm (4.09 in. x 10.28 in. x 11.94 in.) |
| Weight | 3.75 kg (8.27 lb) |
Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.
Model No
Keysight
Condition
Used
Manufacturer
Agilent
Ac voltage
750 V
Dc voltage
1 kV
Resolution
6.5
Type
Bench
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