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DMM4040 bench multimeter


Is discontinued, alternative model DMM6500

Price on Request

Product specifications

Brand Tektronix
Multimeter Nr. Digits 6 1/2


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  • 6.5 Digit Resolution 
  • Basic VDC Accuracy of up to 0.0024% (1 yr.) 
  • 100 mV to 1000 V Voltage Range, with up to 1 μV 
  • Resolution 100 μA to 10 A Current Range, with up to 100 pA Resolution 
  • 10 Ω to 100 MΩ Range, with up to 1 micoΩ Resolution 
  • CAT I 1000 V, CAT II 600 V 


  • Volts, Ohms, and Amps Measurements 
  • True RMS (AC, AC + DC) Measurements 
  • Diode and Continuity Testing 
  • Frequency a& Period Measurements 
  • Temperature and Capacitance Measurements(DMM4050)
  • 2×4 Ohms 4-wire Measurement Technique 
  • TrendPlot TM Paperless data recorder mode
  • Measurement Statistics
  • Histogram Mode


  • Front & Rear 2×4 Measurement Inputs 
  • USB Host Port on front panel for easy storage of measurement data and instrument settings
  • RS-232, LAN, and GPIB ports on Rear Panel for Quick PC Connectivity 
  • Includes USB to RS-232 Interface Adapter Cable 
  •  Includes National Instrument’s LabVIEW SignalExpress™ TE Limited Edition for Connecting Your Bench 


Feature-Rich Tools for Precision Measurements

As the circuits in embedded system designs become more sophisticated with tighter tolerances, you must measure a multitude of different parameters with a high degree of accuracy to validate your design. The Tektronix DMM4050 and DMM4040 6.5 digit bench multimeters pack many different functions and analysis into one instrument, all with exceptional precision and performance.

Typical multimeter measurements – volts, ohms, and amps – are made with a basic VDC accuracy of up to 0.0024%, and resolution of 100 pA and 10 μΩ, ensuring you have the performance you need for today’s demanding designs. You can also use the DMM4050/4040 to measure frequency and period, and to perform continuity and diode tests. For additional flexibility, the DMM4050 offers temperature and capacitance measurements. This allows you to replace your temperature meter, capacitance meter, counter, continuity tester, and traditional DMM with one versatile instrument, saving bench space and cost.

Analyze Your Device with Graphical Display Modes

With the unique dual display of the DMM4050/4040, you can measure two different parameters of the same signal from one test connection. To reveal signal quality issues like drift, intermittent transients, and stability, you can view the data as a real-time trend plot or a histogram with the DMM4050/4040’s graphical display mode, or you can use measurement statistics to track how signal parameters are changing over time.


Depending on your test case, your signal parameters may change from instant to instant. By taking multiple measurements over minutes, hours, or days, you can quantify those changes. With TrendPlot™, you can graphically plot the trend of a measured value over time, from short time spans to extended periods of time. TrendPlot can be used with measurements like DC voltage, DC current, frequency, resistance, and temperature. AC voltage and current can be plotted as RMS measurements.


With integrated statistics processing, you can calculate both the average and standard deviation of a measurement, as well as track the minimum and maximum measured values, with the push of a button. Statistics can be performed on DC voltage, AC voltage, AC voltage in dB, DC current, AC current, resistance, capacitance, frequency, period, and temperature measurements.


To graphically see the average and standard deviation of a set of measurements, you can use the histogram function to see the distribution of measurement results. Designed to Make Your Work Easier The DMM4050/4040 multimeter is designed with the ease of use and familiar operation you expect from Tektronix.


Dedicated front-panel buttons provide fast access to frequently used functions and parameters, reducing setup time. You no longer need to search through software menus to find the function you need.


With the unique dual display, you can measure two different parameters of the same signal from one test connection.


A USB port on the front panel makes it easy to store measurement data and instrument setups to a memory stick. Or connect to your PC with the LAN, RS-232, or GPIB port on the back panel. A USB to RS-232 interface adapter cable is included standard with the DMM4050/4040 to make it easy to connect to your PC’s USB port.


Patented split terminal jacks for the 2×4 ohms function allow you to perform 4-wire measurements using only two leads instead of four. Special test lead accessories are available to enable you to establish the connection. You get excellent resolution and accuracy plus the convenience and ease of using a single pair of leads.

Easily capture, save, and analyze measurement results from your multimeter with the special Tektronix Edition of National Instrument’s LabVIEW SignalExpress™ software. Every DMM4050 and DMM4040 ships with a free copy of the Limited Edition version of SignalExpress for basic instrument control, data logging, and analysis. The optional Professional Edition offers over 200 built-in functions that provide additional signal processing, advanced analysis, sweeping, limit testing, and user-defined step capabilities.

SignalExpress supports the range of Tektronix bench instruments*1, enabling you to connect your entire test bench. You can then access the feature-rich tools packed into each instrument from one intuitive software interface. This allows you to automate complex measurements requiring multiple instruments, log data for an extended period of time, time correlate data from multiple instruments, and easily capture and analyze your results, all from your PC.

Only Tektronix offers a connected test bench of intelligent instruments to simplify and speed debug of your complex design. Performance You Can Count On In addition to industry-leading service and support, every DMM4050 and DMM4040 multimeter comes backed with a three-year standard warranty.

NI LabVIEW SignalExpress supports the following Tektronix instruments: MSO/DPO4000/3000/2000 Series oscilloscopes, TDS3000C/2000B/1000B Series oscilloscopes, AFG3000 Series arbitrary/function generators, DMM4050/4040/4020 Series digital multimeters.

(Updated SDC16FEB'15)