Product configuration
Description
The SDM4055A-SC digital multimeter has a multiplexer for multipoint measurements. The scanner has 12 multipurpose channels and 4 current channels and supports the following measurement functions: DCV, ACV, DCI, ACI, 2WR, 4WR, CAP, FREQ, DIODE, CONT and TEMP (RTD and thermocouple). It provides a convenient and versatile solution for test applications requiring multiple measurement points or signals and is an ideal tool for burn-in testing in research and development as well as production testing.
NOTE: The scanner is only included with new SDM4055A-SC products. It cannot be added to SDM4055A-SC devices at a later date.
Features
- 5-inch TFT LCD display with a resolution of 800 * 480, paired with a touch-sensitive screen and a brand new user interface
- True 5½-digit (220,000 counts) resolution of readings
- Read rate from 5 rdgs/s to 4.8krdgs/s, and support: fast, medium and slow mode
- 512MB RAM, can store up to 2M readings for temporary storage, supports time stamping
- 256MB Nand Flash, supports storage of various file types such as measured values, images, configuration files
- 4 trigger modes: auto trigger, single trigger, external trigger and level trigger
- 4 display modes: numeric, bar graph, trend graph and histogram
- True RMS AC voltage and current measurements
- Supports automatic switching between 10 A high current and 3 A low current measurement modes and can measure up to 30 A in conjunction with an external shunt
- Supports RTD, thermocouples and custom sensors
- Supports dual display and probe hold functions
- Supports SCPI remote control commands
- Equipped with EasyDMM-X software for control and sampling on the host computer
- Communication interface: USB device (optional USB-GPIB adapter), USB host, LAN
- Other interfaces: VMC output, trigger input
- Remote access support for VNC, web server

Basic measurement functions
- DC voltage measurement
- DC current measurement
- True RMSAC voltage measurement
- True RMSAC current measurement
- 2/4-wire resistance measurement
- Capacitance measurement
- Continuity test
- Diode test
- Frequency measurement
- Period measurement
- Temperature measurement
Fields of application
- Research laboratory
- Development laboratory
- Repair and maintenance
- Calibration laboratory
- Automatic production test
Technical Data
| Model comparison | ![]() SDM4055A | ![]() SDM4055A-SC | ![]() SDM4065A | ![]() SDM4065A-SC |
|---|---|---|---|---|
| Number of digits | 5½ | 5½ | 6½ | 6½ |
| DCV Basic accuracy | 150 ppm | 150 ppm | 35 ppm | 35 ppm |
| Maximum read rate | 4,800 rdgs/s | 4,800 rdgs/s | 50,000 rdgs/s | 50,000 rdgs/s |
| Logging memory | Up to 2 million measured values | Up to 2 million measured values | Up to 2 million measured values | Up to 2 million readings |
| Scanner support | No | Yes | No | Yes |
| DCV range | 200 mV ~ 1000 V | 200 mV ~ 1000 V | 200 mV ~ 1000 V | 200 mV ~ 1000 V |
| ACV range | 200 mV ~ 750 V 20 Hz ~ 100 kHz | 200 mV ~ 750 V 20 Hz ~ 100 kHz | 200 mV ~ 750 V | 200 mV ~ 750 V |
| DCI range | 200 uA ~ 10 A | 200 uA ~ 10 A | 200 uA ~ 10 A | 200 uA ~ 10 A |
| ACI range | 20 mA ~ 10 A 20 Hz ~ 10 kHz | 20 mA ~ 10 A 20 Hz ~ 10 kHz | 200 uA ~ 10 A | 200 uA ~ 10 A |
| 2/4-wire resistance range | 200 Ω ~ 100 MΩ | 200 Ω ~ 100 MΩ | 200 Ω~ 100 MΩ | 200 Ω~ 100 MΩ |
| Continuity / diode | Buzzer, 4 V max | Buzzer, 4 V max | Buzzer, 4 V max | Buzzer, 4 V max |
| Frequency/period range | 20 Hz ~ 1 MHz | 20 Hz ~ 1 MHz | 3 Hz ~ 1 MHz | 3 Hz ~ 1 MHz |
| Temperature range | RTD, thermocouple | RTD, thermocouple | RTD, thermocouple | RTD, thermocouple |
| Capacitance range | 2 nF ~ 10 mF | 2 nF ~ 10 mF | 2 nF ~ 100 mF | 2 nF ~ 100 mF |
| IO | USB host, USB device, LAN, GPIB (optional) | USB host, USB device, LAN, GPIB (optional) | USB host, USB device, LAN, GPIB (optional) | USB host, USB device, LAN, GPIB (optional) |
| External interface | Exit trigger, VMC output | Exit trigger, VMC output | Exit trigger, VMC output | Exit trigger, VMC output |
| Display screen | 5-inch TFT screen with touch function | 5-inch TFT screen with touch function | 5-inch TFT screen with touch function | 5-inch TFT screen with touch function |











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