Is there an SMG5?
Is there an SMG5?
The Fieldpiece Digital Megohm Meter, model SMG5, is a compact standalone meter designed for checking HVAC compressor insulation. It can be used to determine the condition of insulation from winding to ground in a motor, compressor, or transformer. Includes a case, alligator clip lead tip and leads with removable tips.
How does a megohmmeter work?
The megohmmeter, or megger, is a measuring device that tests high electrical resistances. A megger will read a wire or motor windings in Megohms, where 1 Megohm is equal to 1,000,000 ohms. In order to read such a high resistance value the meter must be capable of generating a very high voltage.
What is mega ohm meter?
A megohmmeter is an electric meter that measures very high resistance values by sending a high voltage signal into the object being tested. Typically, however, this is the only function a megohmmeter performs.
What are good megohmmeter readings?
Anything reading between 2 megohms and 1000 megohms is usually considered a good reading, unless other problems have been noted. Anything less than 2 megohms indicates an insulation problem.
How much does a Megger cost?
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|1000-434||Megger 1000-434 Dual Clamp Calibration and Spacing PCB||MSRP $140.00 Sale $111.25|
|1004-449||Megger 1004-449 Lead Set, CAT IV 600V, 10 m, for DLRO100 Series||See Price In Cart $1,170.00|
|1004-450||Megger 1004-450 Lead Set, CAT IV 600V, 15 m, for DLRO100 Series||See Price In Cart $1,640.00|
What is a good reading on a Megger?
What is Megger value?
The Megger insulation tester is a small, portable instrument that gives you a direct reading of insulation resistance in ohms or megohms. For good insulation, the resistance usually reads in the megohm range.
What is a bad megohm reading?
The rule may be stated: Insulation resistance should be approximately one megohm for each 1,000 volts of operating voltage, with a minimum value of one megohm. For example, a motor rated at 2,400 volts should have a minimum insulation resistance of 2.4 megohms.
How do you read a megohmmeter?
If the megger reads a resistance under 1 (1,000 ohms) on your meter after the initial 60-second interval, the cable has failed and the cable should be removed. If the megger reads a resistance between 1-1.25 on your meter, then the cable passes. Any reading above 1.25 is considered excellent.
What is a Meg tester?
Is a Megger AC or DC?
Therefore, if we apply AC voltage during IR test then there will always be a flow of current through the capacitor and thus a leakage current to the ground. This is the reason, an Insulation Tester or Megger have DC voltage generator.
What does Megging a wire mean?
A megger is also known simply as an insulation tester. It’s basically an ohmmeter, but it’s one that generates its own electricity under high DC voltages, such as 500 and 1,000 volts, and transmits it in small currents through the cable to be tested. The voltages are high, but the currents are small enough to be safe.