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ADCMT Digital Multimeter 7481 / 7482

8½-digit high-precision and high-accuracy digital multimeter for system calibration

The 7481/7482 is an 8½-digit digital multimeter with high resolution of 0.01 ppm, equipped with DC voltage, DC current and resistance measurement functions. It is suitable for use in research and development fields or calibration organizations, and calibration of inspection systems for electronic components or semiconductors.

The 7481/7482 achieves high-resolution measurement such as 10 nV for DC voltage measurement, 100 fA for DC current measurement and 1 μΩ for resistance measurement, and also guarantees high relative accuracy 5 ppm per year for voltage measurement and 8 ppm per year for resistance measurement. The 7482 also has AC measurement capability, and AC voltage measurement can be made from 10 Hz to 2 MHz using the True RMS method.

In addition, the self-calibration function allows high-accuracy measurement at any time, and external calibration can be performed with a smaller number of standards.

Digital Multimeter

Model:

7481 / 7482

Maker:

ADC CORPORATION

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Features

  • 8½-digit display (119 999 999), 0.01 ppm resolution
    DC voltage measurement: 100 mV to 1000 V, 10 nV resolution
    DC current measurement: 100 nA to 1000 mA, 100 fA resolution
    Resistance measurement: 10 Ω to 1000 MΩ, 1 μΩ resolution
    AC voltage/current, frequency and period measurements (7482 only)
  • High-accuracy measurement by self-calibration function
    5 ppm/year (DC voltage measurement relative accuracy)
    8 ppm/year (resistance measurement relative accuracy)
    Auto-calibration of frequency characteristics for AC voltage measurement (7482 only)
  • Internal memory storage up to 50,000 data (or 500,000 data for the Option +06)
  • High-speed sampling up to 50,000 readings/s

ACCEESSORIEES

 

Standard Accessories

A01402 Power Cable (JIS 2m)
CC010001 Input Cable (test probe 1m)

 

 

Optional Accessories

A01006 Input cable (for 4-wire measurement)
A01035 Input Cable (banana-alligator)
CC015001 Alligator Clip Adapter (for CC010001)
CC022002 Rack Mount Set 2U JIS
CC024002 Rack Mount Set 2U EIA
CC028002 Front Handle Set 2U

Specifications

7481 7482
Maximum display 119 999 999
DC voltage measurement 10 nV to 1000 V
Accuracy (typical value) 5 ppm/year
DC current measurement 100 fA to 1 A
Resistance measurement 1 μΩ to 1000 MΩ
AC voltage measurement (True RMS) N/A 100 nV to 700 V
AC current measurement (True RMS) N/A 100 pA to 1000 mA
Calculation function
Temperature measurement
Data memory 50,000 (or 500,000 for the Option +06)
Interface GPIB , USB, LAN (option)

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Researched by Shared Research Inc.
about Nihon Denkei Co., Ltd.