Unitest Instruments Pte Ltd

What's the use of measuring resistance? To see whether a circuit or component is working properly. The lesser the current flow, the greater the resistance. To regulate circuits, switches and relay contacts have a low resistance that rises over time as a result of things like deterioration (such as wear and dirt). Insulation failure and moisture cause loads like motors and solenoids to lose resistance over time. To determine how much resistance there is: Turn the circuit's power supply off. Do not take a resistance reading until you have discharged the capacitor first. It's possible to use a digital multimeter to measure resistance, or ohms, which commonly shares a space on the dial with other types of testing and measuring (continuity, capacitance or diode; see illustration below). A Digital Multimeter singapore in Resistance mode will begin measuring resistance even before any test leads are attached to a component, therefore the display should show OL instead of OL. Usin...

The specs of a Digital Multimeter singapore determine its performance. By DMM Specification, we imply knowing the multimeter's DC current, AC current, DC voltage, AC voltage, and resistance capabilities. • Choose a digital multimeter with a greater main voltage than the electrical equipment you wish to test. • Never use the multimeter beyond its current range. Higher Ampere currents pose serious risks. • When purchasing high-end digital multimeters, be sure they give accurate RMS values that include any DC components. Make sure the digital multimeter you're buying is accurate. A DMM's accuracy is the greatest allowable inaccuracy in the observed readings.DMM Resolution is the number of digits used to measure the signal intensity. It measures the change in the output signal caused by the slightest variation in the input signal. Higher-resolution DMMs have the drawback of taking longer to notice the rightmost digit.If you wish to test delicate electronics, use a multim...