SMG5 - Digital Megohm Meter

SMG5 - Digital Megohm Meter

Evaluate Compressor Insulation

Helps to Predict Compressor Failure

  • 1000VDC voltage source
  • Measure up to 2000 megohm
  • Backlit LCD

The Fieldpiece Digital Megohm Meter, model SMG5, is a compact standalone meter designed for checking HVAC compressor insulation. The SMG5 provides a 1000V voltage source, monitors current, and displays the resistance between the test points. Maximum current output is <1mA. 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.

To test resistance, a DMM supplies low voltage (<1V) to the test points and is capable of delivering only a few milliamps. It's not a high enough voltage to detect high resistance problems that might indicate moisture and other contaminants and it's not enough current to measure lower values of resistance.

  • Predict compressor failure
  • 1000VDC stresses insulation to measure up to 2000Mohms
  • Backlit LCD display
  • Auto-off to extend battery life
  • Case, alligator clip, leads with removable tips
SMG5 - Digital Megohm Meter
  • Megohm Meter – SMG5
  • (2) Probe Tips
  • (1) Ground Lead with Detachable Tip 
  • (1) Alligator Probe Tip
  • Carrying Case
  • (4) AAA Batteries (installed)
  • Operator’s Manual