CEM DT-5300B Earth Ground Resistance Testers

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CEM DT-5300B Earth Ground Resistance Testers

The CEM DT-5300B Earth Ground Resistance Tester is an advanced version of the standard DT-5300 model, designed for detailed and accurate testing of earth ground connections in various electrical systems. This enhanced model is crucial for ensuring that electrical installations are properly grounded, thereby enhancing safety and preventing electrical hazards.

The DT-5300B is probably built to withstand harsh environments, making it suitable for field work in industrial and commercial settings. It might include additional safety features such as built-in voltage protection, a warning system for incorrect connections, and automatic checks to ensure proper setup and operation. Such features make the DT-5300B a valuable tool for professionals needing reliable and accurate earth grounding measurements in compliance with electrical safety standards.

CEM DT-5300B Key Features

  • Meets IEC10101, CATIII 1000V
  • Large dual display with backlight & Low Battery Indication
  • Test hold function for easy operation
  • Zero Automatic adjustment
  • Sampling Rate: 2.5 times per second
  • Includes 6 “AA” batteries, test leads and a carrying case

CEM DT-5300B Specifications

FunctionRangeMax ResolutionAccuracy
Earth resistance10Ω






±2%rdg ±0.1Ω   ±2%rdg ±3dgts   ±2%rdg ±3dgts
Voltage AC750V1V±1.2%rdg ±10dgts
Voltage DC1000V1V±0.8%rdg ±3dgts
Resistance200kΩ0.1kΩ±1.0%rdg ±2dgts
Continuity TestActive Sound Level: ≤40Ω, Test current ≤200mA
Operating Temp0ºC~40ºC (<80%R.H.)
Storage Temp-10ºC~60ºC (<70%R.H.)
Power Source1.5V “AA” battery x 6
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CEM Corporation Overview

CEM Corporation, founded in 1978, is renowned for its pioneering contributions to scientific instrumentation with a focus on microwave-based technology for laboratory and research applications. The founders—Dr. Michael J. Collins (Chemist), Ronald Goetchius (Electrical Engineer), and Bill Cruse Jr. (Mechanical Engineer)—launched the company with a novel concept for microwave drying that significantly expedited moisture and solids analysis processes from hours down to minutes, which was a groundbreaking improvement at the time.

Product Innovation and Evolution

Over the years, CEM Corporation has expanded its product offerings beyond its original microwave moisture/solids analysis systems. Their portfolio now includes systems for:
  • Acid digestion for elemental analysis
  • Compositional testing of food products
  • Peptide and chemical synthesis
The company's dedication to innovation is reflected in their development of a diverse range of instruments suited for various applications from academic research to industrial quality control.
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