Product Description
Multimeter Functions
| Basic Function |
Range |
Minimum Resolution |
Accuracy |
| DC Voltage |
240.00 mV |
0.01 mV |
±(0.3% + 10 digits) |
| 2.4000 V |
0.1 mV |
±(0.3% + 5 digits) |
| 240.00 V |
1 mV |
| 240.00 V |
0.01 V |
| 1000.0 V |
0.1 V |
| AC Voltage |
240.00 mV |
0.01 mV |
±(0.8% + 10 digits) |
| 2.4000 V |
0.1 mV |
| 24.000 V |
1 mV |
| 240.00 V |
0.01 V |
| 750.0 V |
0.1 V |
±(1% + 10 digits) |
| DC Current |
240.00 mA |
0.01 mA |
±(0.8% + 10 digits) |
| 10.000 A |
1 mA |
±(2.5% + 10 digits) |
| AC Current |
240.00 mA |
0.01 mA |
±(1% + 10 digits) |
| 10.000 A |
1 mA |
±(2.8% + 10 digits) |
| Resistance |
240.00 Ω |
0.01 Ω |
±(0.8% + 10 digits) |
| 2.4000 kΩ |
0.1 Ω |
±(0.8% + 5 digits) |
| 24.000 kΩ |
1 Ω |
±(0.8% + 3 digits) |
| 240.00 kΩ |
10 Ω |
| 2.4000 MΩ |
0.1 kΩ |
| 24.000 MΩ |
1 kΩ |
±(1% + 3 digits) |
| 100.00 MΩ |
0.01 MΩ |
±(5% + 10 digits) |
| Capacitance |
20.000 nF |
1 pF |
±(3.0% + 10 digits) |
| 200.00 nF |
10 pF |
| 2.0000 μF |
0.1 nF |
| 20.000 μF |
1 nF |
| 200.00 μF |
10 nF |
| 2.0000 mF |
0.1 μF |
| Other |
Continuity Test |
√ (<50 Ω) |
| Diode Test |
√ (~3 V) |
| Auto Range |
√ |
| True RMS |
√ |
Oscilloscope function
| Model |
UT81A+ |
UT81B+ |
UT81C+ |
UT81D+ |
| Analog Bandwidth |
50 MHz |
100 MHz |
50 MHz |
100 MHz |
| Channel Count |
2 |
2 |
2 |
2 |
| Vertical Resolution |
8 bit |
| Real-time Sampling Rate |
250 MSa/s |
500 MSa/s |
250 MSa/s |
500 MSa/s |
| Sampling Method |
Sampling, Peak Detection |
| Waveform Refresh Rate |
10,000 wfms/s |
| Input Coupling |
DC, AC, Ground |
| Input Impedance (DC Coupling) |
1 MΩ ± 2%, parallel with 16 pF ± 10 pF |
| Probe Attenuation Factor |
1X, 10X, 100X, 1000X |
| Maximum Input Voltage |
400 V (DC + AC peak) |
| Bandwidth Limit |
20 MHz, Full Bandwidth |
| Sampling Rate Range |
0.25 Ss/s ~ 250 MSa/s |
| Waveform Interpolation |
(Sinx)/x |
| Timebase Range (S/div) |
SFg/div ~ 1000/div |
Zpg/div ~ 1000/div |
SFg/div ~ 1000/div |
Zpg/div ~ 1000/div |
| Timebase Accuracy |
±100 ppm |
| Record Length |
8K or 4K selectable |
| Sensitivity (V/div) Range |
10 mV/div ~ 10 V/div |
| Displacement Range |
±6 divisions |
| Analog Bandwidth |
50 MHz |
100 MHz |
50 MHz |
100 MHz |
| Low-frequency Response (AC Coupling, -3dB) |
≥10 Hz |
| Rise Time (typical, BMC) |
≤7 ns |
≤3.5 ns |
≤7 ns |
≤3.5 ns |
| DC Gain Accuracy |
±3% |
| Cursor Measurements |
Voltage difference (ΔV), Time difference (ΔT) |
| Automatic Measurements |
Period, Frequency, Amplitude, Peak, Maximum, Minimum, Average |
| Offset |
CH1, CH2 |
| Trigger Type |
Edge Trigger |
| Trigger Coupling |
DC, AC |
| Trigger Mode |
Auto, Normal, Single |
| Trigger Level Range |
±4 divisions from screen center |
| Trigger Level Accuracy |
±0.3 divisions |
| Trigger Displacement |
Varies with memory depth and timebase setting |
| Edge Trigger (Slope) |
Rising, Falling |
| Output Voltage (typical) |
3.3 Vpp, High Impedance |
| Frequency (typical) |
Square wave 1 kHz (±1%)
|
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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