A digital multimeter is a device that provides measurements of circuit parameters such as voltage (volts), currents (amps) and resistance (ohms). Digital multimeters also offer a wide range of AC and DC measuring capabilities to accommodate a variety of applications. Many multimeters include continuity and diode test functions with an audible alarm for enahnced user experience.
How do they work?
Through the use of a digital output readout, they are connected to a device and measure typically the voltage and any resistances and give you an output you can measure.
Different types of Multimeter:
Bench meters – The most accurate of the two device types, the bench meter is a larger device, not very portable. This is because of the extra level of detail it can provide you when measuring certain parameters
Handheld - Very portable and allow you to work on the go and access hard to reach machinery. Not as accurate as their bench counterparts, however they still display a high level of accuracy.
Features and benefits:
More accurate and easier to use than analogue multimeters
They help reduce reading errors
Digital multimeters displays do not having moving parts, making them free from wear or shock failures
Zero adjustment needed
Some feature thermal imaging built into the device
Handheld units are extremely portable and ergonomically easy to handle
Drop, water and splash resistance
Clamp options available
Some units have built in work lights and laser pointers for hard to access areas
Long battery life
Auto power off features
Where might I use one?
Electrical testing, plug sockets, lighting and more
Description:
Particularly flat design (25 mm deep)Automatic/manual measurement range
selectionAcoustic overload warningHold/Min/Max as well as diode and continuity testingSwitchable input resistance for voltage measurementProtective case for rough working conditions.
Description:
Keysight U1230 Series handheld digital multimeters are designed
to perform in poor environmental conditions and worst-case scenarios. With the built in flashlight, the ergonomic shaped handheld digital multimeter allows you to single handedly illuminate the test area while selecting measurements ...
Description:
The 2000/E is a fast, accurate, highly stable,
affordable and easy-to-operate instrument. It combines broad measurement ranges with superior accuracy specifications: DC voltage from 100 nV to 1 kV (with 0.002% 90-day basic accuracy); DC resistance from 100μΩ to 100 ...
Description:
Keithley's Integra series systems 2700, 2701 and 2750
combine precision measurement, switching and control in a single, tightly integrated enclosure for either rack-mounted or benchtop applications. Built-in measurement functions include: DCV, ACV, DCI, ACI; Resistance, 2- or 4-wire, offset compensation ...
