Overview
The All-Test Pro 31 50001 is a portable handheld motor circuit analyzer designed for troubleshooting and preventive maintenance of AC induction motors, synchronous motors, and motor-driven equipment. All-Test Pro 31 50001 performs deenergized motor circuit analysis (MCA) testing, allowing technicians and maintenance professionals to evaluate motor health without applying line voltage. This approach significantly reduces risk and enables testing on installed motors from the motor control cabinet or on new, repaired, and spare motors in the shop.
Key Features
- Deenergized Testing: Applies low-voltage AC signals to detect winding faults without energizing the motor
- Comprehensive Fault Detection: Identifies turn-to-turn shorts, coil-to-coil faults, grounded windings, broken rotor bars, and rotor eccentricity
- Multi-Parameter Analysis: Measures impedance (Z), phase angle (Fi), current/frequency response (I/F), insulation-to-ground resistance (up to 500 megohms), and EMI
- Rotor Testing: Mechanical rotor test by turning motor shaft provides pass/fail assessment of rotor condition
- Universal Compatibility: Works on motors from fractional horsepower to thousands of horsepower; applicable to AC induction, synchronous, and coil-based equipment
- Portable Design: Battery-powered handheld unit with charging capability for field and shop use
Technical Specifications
- Test Type: Deenergized Motor Circuit Analysis (MCA)
- Motor Rating Range: AC motors under 1,000V
- Horsepower Range: Fractional to several thousand horsepower
- Insulation Measurement: 500V or 1,000V selectable; up to 500 megohm range
- Measurements: Impedance, phase angle, current/frequency response, insulation resistance, EMI
- Rotor Test: Mechanical rotation test (manual shaft turning) for broken bar and eccentricity detection
- Power Source: Rechargeable battery with 115V charging adapter
- Part Number: 50001
- Manufacturer: All-Test Pro, LLC
Typical Applications
- New and rewound motor acceptance testing before installation
- In-service motor condition monitoring and predictive maintenance
- Motor drive trip troubleshooting to isolate root cause (motor, drive, overload, cables, connections)
- Testing installed motors from the motor control cabinet or panel through hundreds of feet of cable
- Quality assurance and diagnostic testing in manufacturing, HVAC, pump, fan, and compressor applications
- Motor diagnostics in industrial plants, water utilities, food processing, and facilities management
Compatibility & Replacements
Compatible With
- AC induction motors (3-phase and single-phase)
- Synchronous motors (field and rotor coils)
- Motor-driven transformers and coils
- Facility electrical systems with motors under 1,000V
- Motor control cabinets and MCC panels
- Condition Calculator software (optional, for trending and data logging)
Replaces / Drop-In Replacement For
- Previous-generation All-Test Pro models for basic troubleshooting
- Traditional megohm meters and insulation testers (with enhanced fault detection capability)
- Verify specific legacy equipment compatibility with the manufacturer
Works With
- All-Test Pro Condition Calculator software (for manual data entry and trend analysis)
- EMCAT PRO software (for advanced analytics and reporting)
- Motor maintenance tracking systems
- Predictive maintenance (PdM) programs
- Standard test leads and charging equipment included with kit
