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- The Fieldpiece Digital Mohm 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.
Fieldpiece Digital Meter, 1000 VDC, 20 ohm Range: +/- (2 % rdg + 2 dgts), 2000 ohm Range: 500 ohm +/- (5 % rdg + 2 dgts) Accuracy, 10 kOhm on 20 mOhm range, 1 mOhm on 2000 mOhm range Resolution, LCD, 15 s Auto Power Off, Battery, 170 mm H x 44 mm W x 40 mm D
- Measure up to 2000 Mohm
- Backlit LCD
- Predict compressor failure
- Auto-off to extend battery life
- Case, alligator clip, leads with removable tips
- Evaluate compressor insulation
- Helps to predict compressor failure
- OL or -OL is displayed overall range
- 4 hr typical with alkaline battery (at 20 Mohm range test 10 Mohm resistor)
- 4 pcs 1.5 V (AAA size) UM-4 R03 battery
- 3-1/2 digit liquid crystal display (LCD) with maximum reading of 1999
- SMG5 MOhm Meter, (2) Probe Tips, (1) Ground Lead with Detachable Tip, (1) Alligator Probe Tip, Carrying Case, (4) AAA Batteries (installed), Operator's Manual
- Voltage Rating1000 VDCAuto Power Off15Dimensions170 mm H x 44 mm W x 40 mm DDisplay TypeLCDManufacturerFieldpiece InstrumentsManufacturer #SMG5Power SourceBattery