The Keysight (Agilent/HP) 3458A is an industry-standard 8½-digit precision benchtop digital multimeter, renowned for its exceptional accuracy, speed, and flexibility. Used extensively in calibration laboratories and high-throughput production test environments, it offers measurement speeds up to 100,000 readings per second (at 4.5 digits) and an outstanding DC voltage transfer accuracy of 0.05 ppm.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | GPIB (IEEE-488) |
| Warm-up Time | 4 hours (to meet full specifications) |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 100 / 120 / 220 / 240 V AC ±10%, 48-66 Hz or 360-420 Hz |
| Operating Temperature | 0 to 55 |
| Dimensions (W×H×D) | 425.5 × 88.9 × 502.9 |
| Weight | 12 |
General Performance
| Parameter | Value |
|---|---|
| Maximum Resolution | 8 ½ digits |
DC Voltage Specifications
| Parameter | Value |
|---|---|
| DC Voltage Ranges | 100 mV, 1 V, 10 V, 100 V, 1000 V |
| Input Resistance | > 10 GΩ (0.1 V to 10 V ranges), 10 MΩ ±1% (100 V to 1000 V ranges) |
| Transfer Accuracy | 0.1 ppm |
| 1-Year Accuracy | 8 ppm (4 ppm with option 002) |
AC Voltage Specifications
| Parameter | Value |
|---|---|
| AC Voltage Ranges | 10 mV, 100 mV, 1 V, 10 V, 100 V, 1000 V |
| Frequency Bandwidth | 1 Hz to 10 MHz |
| Measurement Technique | Analog RMS, Synchronous Sub-sampled, Random Sampled |
DC Current Specifications
| Parameter | Value |
|---|---|
| DC Current Ranges | 100 nA, 1 µA, 10 µA, 100 µA, 1 mA, 10 mA, 100 mA, 1 A |
AC Current Specifications
| Parameter | Value |
|---|---|
| AC Current Ranges | 100 µA, 1 mA, 10 mA, 100 mA, 1 A |
Resistance Specifications
| Parameter | Value |
|---|---|
| Resistance Ranges | 10 Ω, 100 Ω, 1 kΩ, 10 kΩ, 100 kΩ, 1 MΩ, 10 MΩ, 100 MΩ, 1 GΩ |
| Measurement Configurations | 2-Wire, 4-Wire |
| Offset Compensation Capability | Yes |
Frequency and Period Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 1 Hz to 10 MHz |
| Period Range | 100 ns to 1 s |
Measurement Speeds and Characteristics
| Parameter | Value |
|---|---|
| Maximum Readings per Second | 100,000 readings/sec (at 4 ½ digits) |
Triggering and Memory
| Parameter | Value |
|---|---|
| Standard Reading Memory | 20 KB |
| Optional Reading Memory Expansion | 148 KB (Option 001) |
Math and Advanced Functions
| Parameter | Value |
|---|---|
| Supported Math Functions | Null, Scale, Offset, Filter, Statistics (Min/Max/Avg/StdDev), Limit Testing |
Environmental and Calibration
| Parameter | Value |
|---|---|
| Auto-Calibration (ACAL) Capability | Yes (Internal comprehensive calibration for DCV, Ohms, and AC) |
Connectivity and Interfaces
| Parameter | Value |
|---|---|
| Front/Rear Terminal Switch | Yes |
Physical and Mechanical
| Parameter | Value |
|---|---|
| Rack Mount Compatibility | 2U Full-Rack |
Performance
| Parameter | Value |
|---|---|
| High Stability Reference | Option 002 (4 ppm/year) |
Environmental
| Parameter | Value |
|---|---|
| Storage Temperature | -40 °C to +75 °C |
Inputs & Protection
| Parameter | Value |
|---|---|
| Maximum Input Voltage | 1000 V (DC or peak AC) |
| Maximum Input Current | 1 A (DC or AC rms) |
Interference Rejection
| Parameter | Value |
|---|---|
| Common Mode Rejection (CMR) | 140 dB (DC, with 1 kΩ unbalance in LO lead) |
| Normal Mode Rejection (NMR) | > 80 dB (at 50/60 Hz ± 0.1%) |
AC Voltage & Current
| Parameter | Value |
|---|---|
| Maximum Crest Factor | 5:1 at full scale |
Power
| Parameter | Value |
|---|---|
| Power Line Frequency | 48 - 66 Hz or 360 - 420 Hz |
Technology
Digital Multimeter
Applications
Calibration, R&D, Automated Test Equipment (ATE)