CEM DT-987A True-RMS Digital Multimeter

The CEM DT-987A is a True-RMS Digital Multimeter, which means it is designed to accurately measure the true root mean square (RMS) value of an alternating current (AC) voltage or current, even if the waveform is distorted. This feature makes it particularly useful for working in environments where the power supply may not be a pure sine wave.

This multimeter typically features capabilities for measuring voltage, current, and resistance, and it might include additional functionalities such as capacitance, frequency, temperature, and more. It is likely to be used by electricians, technicians, and engineers for various troubleshooting and diagnostic tasks.

CEM DT-987A Key Features

Large 60,000/6000 count LCD display with analog bargraph & backlight
10kHz bandwidth (voltage/current)
AC True-RMS measurements
Low pass filter (VFD)
A/D convert fast sampling time
Peak capture (records transients as fast as 500μs)
Min/Max/Average with Time stamp (records signal fluctuations)

CEM DT-987A Key Features

Large 60,000/6000 count LCD display with analog bargraph & backlight
10kHz bandwidth (voltage/current)
AC True-RMS measurements
Low pass filter (VFD)
A/D convert fast sampling time
Peak capture (records transients as fast as 500μs)
Min/Max/Average with Time stamp (records signal fluctuations)

CEM DT-987A Specifications

Specifications
Function	Maximum	Max, resolution	Basic Accuracy	985	987A	987BT	987H
Voltage DC	1000V	10mV	±(0.9% + 5)		*	*	*
Voltage DC	1000V	100mV	±(0.9% + 5)	*	*	*	*
Voltage AC	1000V	10mV	±(1.0% + 5)		*	*	*
Voltage AC	1000V	100mV	±(1.0% + 5)	*	*	*	*
Current DC	10A	0.01μA	±(1.5% + 5)		*	*	*
Current DC	10A	0.1μA	±(1.5% + 5)	*	*	*	*
Current AC	10A	0.01μA	±(2.5% + 5)		*	*	*
Current AC	10A	0.1μA	±(2.5% + 5)	*	*	*	*
Resistance	60MΩ	10 mΩ	±(1.2% + 5)		*	*	*
Resistance	60MΩ	100 mΩ	±(1.2% + 5)	*	*	*	*
Temperature	760ºC/1400ºF	0.1ºC/ºF	±(2.0% + 3º)	*	*	*	*
Capacitance	10mF	0.01nF	±(2.5% + 5)	*	*	*	*
Frequency	10MHz	0.01Hz	±(1.0% + 2)	*	*	*	*
Diode and Continuity	Yes
Power Supply	1.5Vx4 “AAA” batteries.

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Brand

Cem

CEM Corporation Overview

Name: CEM DT-987A True-RMS Digital Multimeter - mme-ae
Brand: Cem
SKU: 81970

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.