The UT15B MAX/UT17B MAX/UT18B MAX are highly reliable True RMS digital multimeters with a built-in VFD anti-interference start-up mode that filters out carrier frequency interference superimposed on a sinusoidal waveform or a variety of aberrant voltage signals to stabilize the measurement of inverter output voltage. The UT17B MAX and UT18B MAX can be switched to frequency and duty cycle measurements in DC/AC mode, and the UT18B MAX is equipped with a temperature measurement function with a 0.1°C graduation rate, while the UT18B MAX has an LED measurement function that can measure up to 12V LEDs without distinguishing between positive and negative polarity. The full-featured UT18B MAX/UT18B MAX products are fully protected against mismeasurement of up to 30kVA of energy, and alarms for misplaced input holes of current gears, ensuring safer and more secure operation for users; the products have obtained CE and cETLus certificates according to the CAT III 600V safety level.
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Basic Function |
Measuring Range |
Basic Accuracy |
DC Voltage (V) |
600.0mV/6.000V/60.00V/600.0V/1000V |
±(0.4% + 3) |
AC Voltage (V) |
600.0mV/6.000V/60.00V/600.0V/1000V |
±(0.5% + 5) |
VFD Voltage (V) |
600.0V |
±(8%) |
AC Current (A) |
600.0μA/6000μA/60.00mA/600.0mA/6.000A/10.00A |
±(1.2% + 3) |
DC Current (A) |
600.0μA/6000μA/60.00mA/600.0mA/6.000A/10.00A |
±(1.2% + 3) |
Resistance (Ω) |
600.0Ω/6.000kΩ/60.00kΩ/600.0kΩ/6.000MΩ/60.00MΩ |
±(0.5% + 2) |
Capacitance (F) |
6.000nF/60.00nF/600.0μF/6000μF |
±(2.0% + 5) |
Frequency (Hz) |
10Hz - 10MHz |
±(0.1% + 3) |
Duty Cycle (%) |
1% - 99.9% |
±(1.0% + 4) |
Temperature (°C/°F) |
-55°C - 500°C / -67°F - 932°F |
±2°C / ±4°F |
Resound Photoelectric Technology Research Institute (LSRPTR)
Resound Photoelectric Technology Research Institute (LSRPTR), also known as Resound Research Institute, is affiliated with China Haiheng International Trade Group Co., Ltd. (CHHGC). As an investment attraction enterprise in Zhongyuan Science and Technology City and a construction unit of the Zhongyuan Aurora Laboratory, the institute is committed to the industrialization of scientific and technological achievements, guided by market demand.
Technical Cooperation
Resound Research Institute has established technical cooperation with numerous well-known domestic and foreign universities, research institutes, and enterprise platforms, including:
Tsinghua University
Lanzhou University
Zhengzhou University
Altai State Technical University of Russia
Northwestern Polytechnical University
Chinese Academy of Engineering
Henan Academy of Sciences
China Electronics Technology Group
CGN Group
Xiamen University
Henan University
National University
University of Electronic Science and Technology of China
Chinese Academy of Sciences
China Academy of Engineering Physics
China Shipbuilding Group
China Electronics Group
Henan Inspection Group
Research and Development Fields
* Applications of Micro-Electromechanical and Lithography Technology
* Optoelectronics and Spectroscopy Technology
* High-Power Laser and Device Preparation Technology
* Nuclear Instrument and Emergency Equipment System Applications
Introducing Advanced Technologies and Products
Resound Research Institute continuously introduces advanced new technologies and products in industrial application scenarios such as market supervision, public safety, environmental monitoring, and science, education, research, and production. This has led to the formation of a domestically produced high-end scientific equipment industry base that integrates design, research and
development, production, sales, and services. This base drives the iteration of downstream industry technology, enhances the transformation and industrialization level of scientific and technological achievements, and provides technological sources for innovative development.
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