Hewlett Packard 44701A digital voltmeter

Hewlett Packard 44701A digital voltmeter   

Product Details Introduction

Hewlett Packard 44701A is a 5 1/2 bit high-precision integral digital voltmeter module designed specifically for the HP 3852A data acquisition host, providing accurate voltage and resistance measurements, suitable for industrial automation and laboratory testing scenarios.

Core Features and Specifications

It belongs to the plug-in card module and must be used in conjunction with the HP 3852A data acquisition/control host.

The display accuracy is 5 1/2 bits (up to 599999 counts), which can be switched down to 4 1/2 and 3 1/2 bits.

Adopting integral A/D conversion technology, it has strong anti-interference ability and is suitable for measuring weak signals in noisy industrial environments.

**DC Voltage (DCV) * * Range: 30mV, 300mV, 3V, 30V, 300V.

Maximum accuracy of DC voltage: ± (0.008%+8 μ V) (3V range).

**AC Voltage (ACV) * * Range: 200mV, 2V, 20V, 200V (true RMS).

Resistance measurement: Supports 2-wire and 4-wire methods, with a range of 30 Ω~3M Ω and an accuracy of ± 0.015%.

Can be expanded into a multi-channel data acquisition system with the use of multiplexing cards (such as the 447xxx series).

Support temperature measurement (thermocouple, RTD, thermistor) and strain signal.

Capable of programmable resolution, measurement speed, and noise suppression, balancing accuracy and speed as needed.

Maximum input voltage: 350V peak (AC) or 250V (DC), providing overvoltage protection.

The interface is HP-IB (IEEE-488/GPIB), which supports remote programming and automatic testing system integration.

Industrial grade design, suitable for 7 × 24-hour continuous data collection and monitoring.

To discontinue the classic models, the market circulation mainly consists of second-hand, refurbished, and inventory spare parts.

Mainly used in semiconductor testing, aerospace, industrial process monitoring, laboratory precision measurement and other fields.

This module, with its excellent accuracy and stability, has become a key component in the maintenance, calibration, and high-precision data acquisition projects of old automation systems.

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