D07 Plus - Accurate Low Resistance Measurement

Electric review has posted an article on the latest offering from Cropico, here is an excerpt with a link to the full article at the end of the post.

The Digital Ohmmeter D07Plus from Cropico, a specialist supplier of precision measurement equipment, improves the accuracy to which low resistance can be measured.

Adding to the popular Cropico digital micro ohmmeter range, the versatile, rugged and easy-to-use D07Plus simplifies resistance associated with electrical connections, weld integrity, cable and joint resistance, electric motors and other engineering applications.

Read full article here.

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What is an Ohmmeter?

An ohmmeter is a piece of electrical test equipment designed to measure electrical resistance, the opposite of electrical current (for that we use current meters).

There are two types of ohmmeter:

• Micro ohmmeter (microhmmeter or microohmmeter) - These make low resistance measurements.
• Megohmmeter (or megaohmmeter) - These devices measure larger resistance values.

Resistance is defined by Ohm's Law as:

R= V / I

Therefore Resistance is equal to voltage divided by a constant current (I) which is provided by the ohmmeter itself.

For high precision measurements the above types of meter an inadequate. A high precision ohmmeter is required