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Choose the best Tektronix or Keithley digital multimeter (DMM) for your application
Keithley and Tektronix offer the widest range of bench and system digital multimeters to meet any measurement requirement. This line of digital multimeters (DMMs) addresses the requirements for student labs with basic DMMs and fast and accurate DMMs for component, module, and assembled product manufacturing testing.
Get the following performance benefits of a bench bench digital multimeter:
- 5½-digit resolution to 8½-digit resolution DMMs
- 6ppm basic voltage measurement accuracy on the 8½-digit DMM for calibration laboratories
- Fast, 1 Msample/s sampling speed to capture complex, low level current profiles from IoT devices or other wireless devices
- Sensitivity of 1 µΩ and 1 pA to test low power devices for research, design, and manufacturing test
- A wide range of measurement functions such as DC and AC volts, DC and AC current, two- and four-wire Ohms, continuity, frequency, period, RTD, thermistor, and thermocouple temperatures, diode test, and capacitance
- Numerous interface options including LAN/LXI, USB-TMC, GPIB, and RS-232 for data acquisition and automated testing
- Intelligence to execute tests and create customized measurements with minimal PC interaction
- Measurement expansion up to ten channels
Compare Digital Multimeters from Tektronix and Keithley
DMM6500 6½-digit Bench/System Digital Multimeter
- 0.0025% DCV accuracy (1 year)
- 1 Msample/s digitizing, 16-bits
- 10-channel scan card option
Keithley DMM7510: 7½-Digit Graphical Sampling Digital Multimeter
- 0.0014% DCV accuracy (one year)
- 1,000,000 readings/s digitizer
- Touchscreen display
DMM7512 Dual Channel 7½-Digit Sampling Digital Multimeter
- 2 DMMs in 1U high enclosure
- 1 Msample/s, 18-bit digitizers
- 10 nV, 0.1 µΩ and 1 pA sensitivities
Keithley 2110 Series: 5½-Digit Dual-Display USB Digital Multimeter
- Temperature and Capacitance
- 10A DC and AC current ranges
- USB or USB/GPIB option
Keithley 2100 Series: 6½-Digit USB Digital Multimeter
- 11 functions, 8 math operations
- USB interface
- Front and rear inputs
Keithley 2010 Series: 7½-Digit Digital Multimeter with Scanning
- 100nV noise floor
- Dry circuit measurement
- 10Ω resistance range
Keithley 2001 Series: 7½-Digit Digital Multimeter with Scanning
- 0.0018% DCV accuracy (one year)
- Peak detection of 1µs spikes
- 2MHz ACV bandwidth
Keithley 2002 Series: 8½-Digit Digital Multimeter with Scanning
- 0.0006% DCV accuracy (one year)
- 1nV, 100nΩ, and 10pA sensitivity
- DC in-circuit current and 15MHz frequency measurement
If multi-channel measurements greater than ten channels are needed, see our Switching and Data Acquisition Systems.
Also consider Keithley Source Measure Unit (SMU) instruments, with integrated digital multimeter, power supply, current source, and electronic load capabilities.
Digital Multimeter FAQs
What is a digital multimeter?
A digital multimeter measures electrical stimuli, including voltage, current, and resistance. It’s a diagnostic tool used by technicians and electrical engineers daily and combines the features of a voltmeter, ammeter, and ohmmeter.
How do digital multimeters work?
Digital multimeters attach to probes, leads, or clamps, which are connected to an electronic device. They then measure the device’s voltage, current, or resistance and use an analog to digital converter to present a value on the display.
How do I choose a digital multimeter?
When it comes to choosing a digital multimeter, there are a number of factors to consider, starting with where you will be using it. You’ll also want to look at accuracy, speed, and the number of channels needed to complete your job.
How do you use a digital multimeter?
A digital multimeter is very easy to use. When using a benchtop DMM, you select the correct measurement mode, then attach probes, clamps, or leads to both the DMM and the device under test to make a measurement.
What is a digital multimeter used for?
A DMM is often used to verify one of the factors of Ohm’s Law (voltage, current, and resistance). Engineers in the lab and in the field also use DMMs to verify the state of a system or circuit for safety purposes.
What’s the difference between handheld and benchtop digital multimeters?
Handheld digital multimeters are used by electricians, electrical contractors and HVAC specialists to make measurements and troubleshoot potentially hazardous systems in the field. Benchtop DMMs are instruments used by electrical and electronic engineers to perform more advanced measurements and gain confidence in their designs. These instruments are extremely precise and have a variety of advanced functionality, including the ability to program automation, slow or speed up measurements to observe low-level or transient signal behavior, and interface with other instruments.
How do I measure current with a digital multimeter?
A digital multimeter measures current by becoming part of a circuit and measuring the current as it passes through the instrument. Learn more about how to break your circuit and take measurements with step-by-step instructions for how to measure current with a digital multimeter.
Digital multimeter safety tips
Digital multimeters are generally safe provided they are used according to the instrument’s instructions and safety best practices are followed. Below are a few tips to ensure your safety when using a digital multimeter.
- Know your electrical parameters. Any DUT will have a set of electrical parameters, which are associated with CAT ratings. Never use a DMM that isn’t rated for your job or test environment.
- Wear the appropriate PPE. Before touching your DUT or instrument, make sure you have the proper PPE, which typically includes gloves and rubber-insulated mats.
- Test in a safe environment. Keep all work surfaces clean and dry and never work in an environment with flammable liquids or vapors.
- Power up and down safely. Never connect or disconnect probes or leads while they are connected to a voltage source. And don’t touch exposed connections and components when power is present.
- Use the correct inputs for a signal: Always use the appropriate connectors for the signal you’re measuring (current or voltage) and for the right level of current you’re measuring.
- Set the appropriate range: Before making a measurement, make sure you set the appropriate range to avoid potentially damaging equipment or causing injuries.