Operating Tips

DC Power Supplies

SPD Local Front Panel Lock Out SCPI commands

November 21, 2019

The current version of the SPD programming commands (located in the Quick Start Guide) do not include any front panel lock commands. These are typically used to control the functionality of the front panel keys. Locking the front panel prevents accidental changes to instrument operation during remote control. The SPD1000X and SPD3303X/X-E have three commands … Continued

Currently supported instruments for use with the SIGLENT USB-GPIB adapter

July 26, 2019

The SIGLENT USB-GPIB adaptor currently works with the following SIGLENT instruments: Multimeters – SDM3065X/SDM3065X-SC SDM3055/SDM3055-SC SDM3045X   Function/Arbitrary waveform generators – SDG6000X Series SDG5000 Series SDG2000X Series SDG1000X Series SDG1000 Series   Spectrum & vector network analyzers – SSA3000X Series SVA1000X Series   Oscilloscopes – SDS1000CFL 

SPD wiring suggestions

March 7, 2019

The SIGLENT SPD series of power supplies have only positive voltage and current setpoint values. That is, you can select voltages or currents that are from 0 to the max value (0-32 V, for voltage.. as an example for the SDP3000X/X-E). Here are the suggested wiring configurations to achieve both positive and negative potentials at the … Continued

USB Connectivity Checklist

February 28, 2019

The Universal Serial Bus (USB) is very popular and has added a tremendous level of convenience and flexibility to computer and peripheral controls, including test and measurement instrumentation. As with all technology, it isn’t always sunshine and blue skies. Here are some common troubleshooting steps for USB connection issues: – Is the instrument plugged in … Continued

SPD constant current performance (current compliance protection)

February 15, 2019

The SIGLENT SPD series of power supplies offer constant current mode. This setting limits the current output of the specified channel and can be used as a constant current source and to protect your device-under-test (DUT). In this tip, we show the typical performance of the SPD as it switches between constant voltage (CV) and … Continued

SPD programming tips

December 29, 2018

The SPD series of power supplies feature remote programming capabilities and can be controlled via USB or LAN connection. In this note, we will use Python and PyVISA to create a program that will connect to an SPD, enable the output, delay, and then disable the output. There are two areas that differ from some … Continued

Are your instruments FCC compliant?

December 18, 2018

Test and measurement equipment is exempt from FCC emissions limits per CFR 47, Part 15, para 15.103(c): https://www.gpo.gov/fdsys/pkg/CFR-2002-title47-vol1/pdf/CFR-2002-title47-vol1-sec15-103.pdf Specifically: “(c) A digital device used exclusively as industrial, commercial, or medical test equipment.”

SPD3303-C Power Supply is stuck in Constant Current (CC) mode

November 14, 2018

The most common reason that the SPD3303-C is stuck in constant current mode (CC.. indicated by a red LED between the channel outputs) is an incorrect voltage setting on the inputs. Here is a picture of the voltage settings at 220 V, but with 120 V input power: Note that with no load attached, the … Continued