CEM DT-5554 RCD Tester

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CEM DT-5554 RCD Tester

The CEM DT-5554 RCD Tester is a specialized tool designed for testing the operation of Residual Current Devices (RCDs), which are critical safety devices in electrical installations that protect against electric shock and fire hazards caused by earth faults. RCDs, also known as Ground Fault Circuit Interrupters (GFCIs) in some regions, automatically cut off the electrical supply when they detect a fault current to earth that exceeds a predetermined level.

Additionally, the DT-5554 may offer a robust design suited for field use, with features such as a clear, easy-to-read display and possibly data logging capabilities for recording test results. It might also include built-in safety features to protect the user and the device during testing.

CEM DT-5554  Key Features

  • Safe voltage measurement function
  • Large custom digital display readout on all models
  • Visual indication of reversed-phase and neutral wiring at the socket

CEM DT-5554  Specifications

Measurement specificationsRangesResolutionAccuracy
Nominal test current10/30/100/500mA/1A(-2%+10%)+6Digits
Current selection0.5x, 1x, 2x, 5x nominal current
Trip time10-2000 ms at 0.5x

10-500 ms at 1x

10-150 ms at 2x

10-40 ms at 5x

1 ms±(2%rdg. + 2Digits)
Ramp test0.4x to 1.4 times nominal rated current10%
Mains voltage230(+10%/ -10%)V1V±(2%rdg. + 2Digits)
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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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