HP 3458A 8.5-Digit Multimeter: Precision Measurement Solution for PLC Industrial Automation
HP 3458A 8.5-Digit Multimeter
High-Precision Measurement Solution for Industrial Automation and PLC Systems
Product Overview
The HP 3458A is a high-performance 8.5-digit multimeter designed for precision measurement applications in industrial automation, PLC systems, and calibration laboratories. Originally developed by Hewlett-Packard and now maintained by Keysight Technologies, this instrument represents the gold standard in digital multimeter technology with exceptional accuracy, speed, and reliability.
For PLC industrial automation applications, the 3458A provides the measurement precision needed for quality control, process monitoring, and system validation. Its high-speed capabilities make it ideal for automated test systems where throughput and accuracy are critical.
View Compatible Accessories for HP 3458AKey Features and Benefits
Capable of up to 100,000 readings per second, making it ideal for high-throughput production testing and automated PLC systems.
8.5-digit resolution with 0.6 ppm accuracy for 24 hours in DC voltage measurements, ensuring reliable data for critical industrial processes.
Self-adjusting autocalibration system with two-source (10V, 10kΩ) calibration capability, reducing downtime and maintenance costs.
Designed for continuous operation in industrial environments with built-in reliability features and robust construction.
For enhanced functionality and protection, consider the 4-wire short circuit breaker calibrator specifically designed for HP 3478A, 3468A, and 3458A multimeters.
Technical Specifications
| Parameter | Specification | Application in PLC Systems |
|---|---|---|
| Resolution | 8.5 digits | Precise measurement of control signals and sensor outputs |
| DC Voltage Accuracy | 0.0008% (8 ppm) for 1 year | Reliable process monitoring and quality control |
| Maximum Reading Speed | 100,000 readings/second | High-speed production testing and data acquisition |
| Memory | 20 kB internal memory | Data logging for process analysis and troubleshooting |
| AC Voltage Accuracy | 100 ppm mid-band | Power quality monitoring in industrial facilities |
| Resistance Accuracy | 2.2 ppm for 24 hours | Precision measurement of sensor resistances and components |
| Integration Time | 500 ns to 1 second programmable | Flexible adaptation to different measurement requirements |
PLC Industrial Automation Applications
Verify PLC output signals and control loop performance with sub-ppm accuracy for critical manufacturing processes.
Calibrate temperature, pressure, and flow sensors used in PLC-controlled systems with exceptional precision.
Perform automated quality checks on PLC-controlled production lines with high-speed measurement capabilities.
Diagnose PLC system issues with precise voltage, current, and resistance measurements across control circuits.
To ensure optimal performance and protection for your HP 3458A in industrial environments, we recommend using the dedicated 4-wire short circuit breaker calibrator available from our partners.
Frequently Asked Questions
The HP 3458A combines high-speed measurement capabilities (up to 100,000 readings/second) with exceptional accuracy (8.5-digit resolution), making it ideal for automated test systems, process monitoring, and quality control in PLC-controlled manufacturing environments. Its reliability and self-calibration features minimize downtime in continuous production settings.
While standard industrial multimeters typically offer 4.5 to 6.5 digits of resolution, the 3458A provides 8.5-digit resolution with significantly better accuracy and speed. This makes it suitable for precision applications where measurement uncertainty must be minimized, such as in calibration laboratories, research facilities, and high-precision manufacturing.
For industrial applications, we recommend the 4-wire short circuit breaker calibrator which provides protection against accidental overloads and simplifies calibration procedures. This accessory is specifically designed for HP 3478A, 3468A, and 3458A multimeters and enhances both safety and measurement accuracy.
Yes, the 3458A features GPIB, RS-232, and optional LAN interfaces for seamless integration into automated test systems. Its high-speed measurement capabilities and programmable functions make it ideal for integration with PLC-controlled test stands and production line monitoring systems.
The HP 3458A features exceptional long-term stability with voltage reference stability of 8 ppm per year (4 ppm optional). While calibration intervals depend on usage and environmental conditions, the instrument's self-calibration capability and stability typically allow for annual calibration in most industrial applications.
External Citations and Industry Recognition
Industry Standard: The HP 3458A is widely recognized as the industry standard for high-precision digital multimeters, with over 30 years of proven performance in calibration laboratories, aerospace, telecommunications, and industrial automation.
Technical Documentation: According to Keysight Technologies (successor to HP/Agilent), the 3458A provides "extraordinary accuracy with 0.6 ppm for 24 hours in DC volts and 2.2 ppm for 24 hours in ohms" making it suitable for the most demanding measurement applications.
Industrial Applications: The instrument's high-speed digitizing capability (100,000 readings/second) and 12 MHz bandwidth make it ideal for waveform analysis and transient measurement in PLC-controlled systems.
Conclusion
The HP 3458A 8.5-digit multimeter represents the pinnacle of precision measurement technology for PLC industrial automation applications. Its combination of exceptional accuracy, high-speed measurement capabilities, and industrial reliability makes it an invaluable tool for quality control, process monitoring, and system validation in automated manufacturing environments.
For optimal performance and protection of your investment, we recommend using compatible accessories such as the 4-wire short circuit breaker calibrator specifically designed for HP 3458A multimeters. This accessory enhances both measurement accuracy and instrument protection in demanding industrial applications.
Whether you're implementing new PLC systems, upgrading existing automation infrastructure, or establishing calibration standards, the HP 3458A provides the measurement confidence needed for success in today's competitive industrial landscape.
Get Compatible Accessories for Your HP 3458A
