CEM DT-9481 AC/DC True RMS Clamp Meter

The CEM DT-9481 is an AC/DC True RMS Clamp Meter designed to accurately measure alternating and direct currents using a clamping mechanism that does not require breaking the circuit. This feature makes it extremely useful for electricians and technicians who need to perform current measurements safely and efficiently.

The DT-9481 is likely designed with durability and the professional user in mind, incorporating a robust construction and possibly additional features like a backlit display for working in low-light conditions, data hold functions, and perhaps even Bluetooth connectivity for logging and monitoring via mobile devices or computers.

CEM DT-9481 Key Features

Built-in Thermal Imager with 80×80 InfraRed resolution quickly and safely identifies hot spots without contact
2.4“ TFT color 6000 counts LCD display with 240×320 pixels for easy and clear viewing of images and readings
True RMS measurement for ACV / ACA / LoZ for ACV measurement
Flexible current probe (320B/320BS optional) expands the measurement range to 3000 ACA
Low pass filter for accurate measurement of variable frequency drive (VFD) signals
1.4’’ (37mm) Jaw opening
AC, AC+DC True RMS measurement & 1KHz ACV, ACA bandwidth
A/D convert fast sampling time: 10 times/sec
Peak capture as fast as 500μS & Inrush current
Min/Max/Avg with Time stemp (records signal fluctuations)
With Bluetooth connect to Thermview+ smart phone App for documentation reporting and sharing
Logging function with Trend capture for easy review of logged data
Double molded plastic housing for safe testing and flashlight for dark location

CEM DT-9481 Specifications

Feature	Specification	9481
IR Resolution	80×80 pixels	*
Field of View (FOV)	21° x 21°	*
Thermal Sensitivity/NETD	< 0.08°C / 80mK	*
Image Frequency	50Hz	*
Object Temperature Range	-20 to 260°C (-4 to 500°F)	*
Spectral Range	8-14 µm	*
Color Palettes	Iron/Rainbow/Grey/Grey Inverted/Feather	*
Accuracy	±2°C (±3.6°F) or ±2% of reading	*

True RMS Multimeter Functions

Function	Maximum	Max. Resolution	Best Accuracy	9481
Voltage DC	1000V	100mV	±(0.5% + 5d)	*
Voltage AC	1000V	100mV	±(1.2% + 5d)	*
Current DC	1000V	0.01A	±(2% + 8d)	*
Current AC	1000V	0.01A	±(2.5% + 5d)	*
Flexible A	3000A	0.01A	±(3.0% + 5d)	*
Resistance	60MΩ	0.1Ω	±(0.8% + 5d)	*
Capacitance	100mF	0.01nF	±(3.0% + 5d)	*
Frequency	10MHz	0.01Hz	±(0.2% + 5d)	*
Inrush Current	1000A	1A		*
Temperature	1000ºC/1832ºF		±(1.5% + 3ºC)	*
Diode & Continuity	Yes	*
Interface	Bluetooth	*
Power Supply	Li-ion rechargeable battery	*

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Brand

Cem

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.