Description
Product Summary
The Supco M500 LED Megohmmeter is a professional-grade replacement part from Supco (Sealed Unit Parts Co.), a trusted name in HVAC/R and appliance parts since 1945. An inexpensive alternative to taut band (swing needle) megohmmeters, the M500 provides fast and accurate measurements to verify the condition of the insulation.
Multimeters, megohmmeters, and current probes for diagnosing HVAC/R electrical circuits, motors, and compressors.
Key Features
- Hand held
- Impact resistant
- Measure insulation values up to 1000 megohms @ 500VAC
- Operates on 2 C batteries (not included)
- Soft carrying case included
- Test leads store in case
- Zone scale to indicate insulation condition
- WARNING: Prop 65 info
Specifications
| Brand | Supco |
|---|---|
| Part Number | M500 |
| Part Type | Meter |
| Measurement/Function | Insulation Resistance |
| Range | 20 to 1000 megohms |
| Temperature Range | 32°F to 120°F (0°C to 50°C) |
| Lead Length | 6" |
Cross Reference
The Supco M500 is a direct replacement for the following OEM and competitor part numbers. Always verify ratings and fit against the original part before installing.
| Replaces Part # | Manufacturer | Description |
|---|---|---|
| DMEG3 | UEI® | Megohmmeter |
| 1507 | FLUKE® | Megohmmeter |
| 380260 | EXTECH® | Megohmmeter |
| AMB-45 | Amprobe® | Megohmmeter |
Frequently Asked Questions
Can M500 be used on 3 phase units?
Yes. Attach 1 lead to chassis and 1 lead to the motor terminal. Repeat for each phase.
Will this work on Scroll compressors?
The M500 sends high voltage spikes (very low amps) through the windings (must be grounded to the case) testing the insulation. It works fine on scroll compressors.
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What's Included
- (1) Supco M500 LED Megohmmeter
Safety: Always disconnect power and follow lockout/tagout procedures before servicing electrical components. Installation should be performed by a qualified technician.
