True six and a half digit multimeter
The SDM4000A series digital multimeter has a 6½-bit readout resolution (2,200,000 counts) with a full scale range of ±0000000 ~ 2,199,999. Superior performance puts small current variations to large voltage fluctuations under control.

High-speed & high-precision measurement
The SDM4000A can achieve up to 50,000 readings/second with a minimum sampling interval of 20 μs, and a maximum of 2M points can be acquired in a single pass, while supporting the reading timestamp function. In terms of sampling interval, it supports fine settings of maximum 100 PLC and minimum 0.001 PLC, which gives it excellent performance in high-speed data acquisition and monitoring of small changes, and is suitable for a variety of application scenarios that require precise measurements.

Three sampling methods
-Continuous sampling mode
The multimeter continuously samples and measures at a constant rate, allowing the user to monitor changes in real time - Logger
Up to 100 hours of data recording for applications that require long periods of time to record readings - Digitizer
In the field of low-frequency high-precision sampling, the performance of digitizers is better than oscilloscopes and spectrometers. It is extremely suitable for high-precision digital sampling, audio signal digitization and other application scenarios.
The multimeter continuously samples and measures at a constant rate, allowing the user to monitor changes in real time - Logger
Up to 100 hours of data recording for applications that require long periods of time to record readings - Digitizer
In the field of low-frequency high-precision sampling, the performance of digitizers is better than oscilloscopes and spectrometers. It is extremely suitable for high-precision digital sampling, audio signal digitization and other application scenarios.


Powerful Math Operations
The SDM4000A supports five operations: statistics, limit, dBm, dB and relative operations. Not only can it quickly count various measurement data, such as maximum, minimum, average, peak, standard deviation and sample size, but it can also perform pass/fail tests based on preset upper and lower limits. In addition, it supports the conversion of voltage units to power units; it can also show the relative relationship between the measured value and the reference value in dB; and through relative operation, it can also accurately find out the difference between the actual measured value and the expected value.

Remote control and programming
SDM4000A built-in USB Host, USB Device, LAN standard communication interface, optional USB-GPIB module. It supports standard SCPI remote control commands, host computer software, and is compatible with the latest mainstream multimeter command set. Embedded Web Server can be used to remotely control the multimeter directly through the web page, realizing remote programming and communication needs.


Multi-function scanner card
The SDM4065A-SC is equipped with a multi-function scanner card (SC1016) that can extend the function of multimeter to measure various circuit parameters quickly and accurately.The SC1016 has a 16-channel measurement interface (12 multi-function channels + 4 current channels), which allows simultaneous measurement of multiple circuit parameters at multiple test points or devices, and enables the control of the device and scanner card through the upper computer.

model number | Readout Resolution | DCV basic accuracy | Maximum sampling rate | NPLC | stockpile | tax inclusive price |
---|---|---|---|---|---|---|
SDM4065A | 6½ (2,200,000 count) | 35PPM | 50,000 rdgs/s | 0.001~100 | 2 Gb Nand Flash | ¥9,980 |
SDM4065A-SC | 6½ (2,200,000 count) | 35PPM | 50,000 rdgs/s | 0.001~100 | 2 Gb Nand Flash | ¥11,580 |
Specification | |||
---|---|---|---|
Resolution Accuracy | 6½ (2,200,000 count) | DC voltage measurement range | 200 mV - 1000 V |
DCV basic accuracy | 35PPM | DC current measurement range | 200 uA - 10 A |
Maximum sampling rate | 50,000 readings/second | AC Voltage Measurement Range | 200 mV - 750 V |
Minimum sampling interval | 20 μs | AC Current Measurement Range | 200 μA - 10 A |
NPLC | 100, 10, 1, 0.1, 0.01, 0.001 | 2-wire and 4-wire resistance measurements | 200 Ω - 100 MΩ |
math operation function | Maximum, Minimum, Mean, Standard Deviation, dB/dBm, Limits | Capacitance Measurement | 2 nF - 100 mF |
total capacity | 2 Gb Nand Flash | Conduction, Diode Measurement | Yes, 4 V |
connector | USB Device, USB Host, LAN, GPIB (optional) | temperature measurement | RTD, Thermocouple |
Scan Card SC1016 | SDM4065A: No | Frequency, period measurement | 3 Hz~1 MHz |
SDM4065A-SC: Yes |