Test and Measurement

Here are Instruments like Power Supplies, Multimeters and Oscilloscopes. Logic Analyzers, Spectrum Analyzers and Data Loggers too. - Electrical Engineering Metrics

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Monday, September 14, 2020

Bench LCR ESR Meter 889B - BK Precision

Synthesized In-Circuit LCR/ESR Meter, useful in measuring inductors, capacitors and resistors with a basic accuracy of 0.1%. Inbuilt functions of DC/AC Voltage/Current measurements and Diode/Audible Continuity checks, study the characteristics of electronics components. Very Essential tool on any Electronics Workbench.

Bench LCR ESR Meter 889B - BK Precision

The dual display feature permits simultaneous measurements. When DC/AC voltage/current measurement mode or the Diode/Audible Continuity Check mode is selected, only the secondary display will be used to show the result of the measurement.

Bench LCR ESR Meter 889B - BK Precision

Features Include
  • Measures Z, L, C, DCR, ESR
  • D, Q, ACV, DCV, ACA, DCA and Ø
  • Test Freq. - 100 Hz to 200 kHz
  • Test Level - 1 Vrms, 0.25 Vrms, 0.05 Vrms
  • 0.1% basic accuracy
  • USB interface

Thursday, September 10, 2020

Saleae Logic - PC based Logic Analyzer

 Store up to 500M samples at speeds as fast as 24MB/s. Serial Protocol Analyzer, SPI Protocol Analyzer, I2C Protocol Analyzer and1-Wire Protocol Analyzer.

Saleae Logic - PC based Logic Analyzer - https://www.saleae.com/

"With an anodized aluminum enclosure and clean, intuitive software, Logic sets the standard for entry-level logic analyzers."

Saleae Logic - PC based Logic Analyzer

Logic’s inputs are protected against overvoltage conditions via current-limiting resistors and ultra-low-capacitance diode clamps. A resettable fuse protects the USB ground return line to augment the USB host’s existing protection.


  • 8 Inputs
  • Voltage Range: -0.5 to 5.25V
  • Input Low Voltage: -0.5 to 0.8V
  • Input High Voltage: 2 to 5.25V
  • ESD and over-voltage protection
  • Logic threshold not adjustable
Sample Rate & Depth
  • 24MHz Maximum Sample Rate
  • 200M+ samples, absolute limit depends on system ram

Wednesday, September 9, 2020

DMM4020 Digital Multimeter - Tektronix

Measure volts, ohms and amps with a basic V DC accuracy of 0.015%. DC leakage current measurements and frequency measurements too.


The RS-232 port on the back panel can be used to connect to your PC. A USB to RS-232 interface adapter cable is included standard with the DMM4020 for connecting to your PC’s USB port.

DMM4020 Digital Multimeter - Tektronix

DMM4020 Digital Multimeter - Tektronix

The limit compare mode provides pass/fail indicators to quickly show if a test passes or fails to help eliminate mistakes, especially for results that are close to the limit.

5.5 digit resolution Measure volts, ohms and amps with a basic V dc accuracy of 0.015%. Frequency measurements Save cost and bench space by replacing a multifunction DMM and counter with one instrument.

DC leakage current measurements Make sensitive low current measurements with 1 nA resolution. Dual display Measure two different parameters of the same signal from one test connection. PC Connectivity Easily connect to a personal computer using RS-232 or USB.