Competition Win a 5½-Digit Bench Multimeter at electronica

Anbieter zum Thema

ELEKTRONIKPRAXIS - Wissen. Impulse. Kontakte.

Siglent Technologies Germany GmbH

ET System electronic GmbH

TRACO ELECTRONIC GMBH

Caltest Instruments GmbH

Visit the ELEKTRONIKPRAXIS booth B4.500 from November 10–13, 2026, and register for a chance to win a Siglent SDM4055A digital multimeter.

From November 10-13, at electronica 2026 in Munich, ELEKTRONIKPRAXIS and Siglent will be giving away an SDM4055A bench multimeter. To enter, register at booth B4.500 during the show. Entries are accepted on-site only. The prize is the standard version, which does not include the SC1016 scanner card.

In addition to the multimeter, you have the chance to win one of the following prizes:

• Five ADALM2000 active learning modules from Analog Devices;

• a Würth Elektronik design kit for Power over Data Line (PoDL); and the book trilogies Trilogie der Steckverbinder and Trilogie der Induktivitäten.

• You can also win a case of Franconian wine from VDP Weingut Schwab in Thüngersheim, provided by Würth Elektronik and Inpotron.

To enter, register at the ELEKTRONIKPRAXIS booth B4.500 during the show. Winners are selected by random drawing. Winners will be notified, and prizes will be shipped after the fair.

Resolution, Speed and Low Loading

The SDM4055A resolves 5½ digits with 220,000 counts. Siglent specifies a one-year DC voltage accuracy of 0.015 % of reading plus 0.003 to 0.004 % of range, valid after a 30-minute warm-up at the "Slow" reading rate. Three speed settings cover 5 to 4,800 readings per second, so users can trade noise rejection against throughput. On the 200 mV and 2 V ranges, the input resistance can be switched from 10 MΩ to more than 10 GΩ, which reduces loading errors on high-impedance sources. Typical input bias current is below 90 pA at 25 °C. Resistance from 200 Ω to 100 MΩ can be measured with two or four wires. Four-wire mode removes lead resistance from the result, which matters for shunts, contacts and low-value resistors.

The Measurement Functions in Overview

The meter covers DC voltage up to 1,000 V and true-RMS AC voltage up to 750 V from 20 Hz to 100 kHz. DC and AC current go up to 10 A, with automatic switching between the 3 A and 10 A measurement modes. With the optional SCD30A diverter, currents up to 30 A can be measured. Capacitance from 2 nF to 10 mF, frequency and period from 20 Hz to 1 MHz (reciprocal counting), and diode and continuity tests complete the set. Temperature can be measured with RTD sensors, thermocouples of types B, E, J, K, N, R, S and T, or user-defined sensors.

Example Scenario: Tracking Drift

As an illustration, consider how a regulator output drifts while a board warms up. The SDM4055A can log such a measurement for up to 100 hours, storing up to 2 million readings in internal memory or up to 360 million readings in files. A trend chart shows the drift over time, and a histogram shows how the readings are distributed. Built-in statistics provide minimum, maximum, mean and standard deviation, and limit testing flags readings that fall outside a defined tolerance band.

Ready for the Test Rack

For automated testing, the meter accepts SCPI commands over USB and LAN. GPIB is available through an optional USB-GPIB adapter. An external trigger input and a VMC output allow measurements to be synchronized with switching systems or handlers. Each trigger can take between 1 and 10,000 samples. VNC and web server access, along with Siglent's EasyDMM-X software, enable remote operation from a PC.

As with any precision instrument, the specifications depend on conditions. The AC figures apply to sine-wave signals above 5 % of range, and the capacitance specifications assume use of the "Ref" function. (heh)

(ID:51005292)