AMPROBE AM-540 ADVANCED HVAC MULTIMETER
The Amprobe AM-540 Advanced HVAC Multimeter is a True-RMS digital multimeter designed for demanding HVAC troubleshooting and electrical service work. It includes dual thermocouple inputs for differential temperature measurement, microamp capability for flame sensor troubleshooting, capacitance testing, low-pass filter support, and non-contact voltage detection.
Specifications
- Manufacturer: Amprobe
- Model: AM-540
- Product Type: Advanced HVAC digital multimeter
- Measurement Type: True-RMS
- Voltage Measurement: Up to 1000 V AC/DC referenced in Amprobe family data
- Temperature Measurement: Dual thermocouple inputs for differential temperature
- Capacitance: Motor start/run capacitor testing capability
- Special Functions: Microamps for flame sensors, low-pass filter for VFD measurements, and non-contact voltage detection
- Safety Rating: CAT IV 600 V / CAT III 1000 V referenced in Amprobe documentation
Key Features
- Designed specifically for advanced HVAC diagnostics
- Dual thermocouple inputs support differential temperature checks
- Microamp function helps troubleshoot flame sensors
- Low-pass filter improves VFD voltage measurements
Typical Applications
- HVAC electrical troubleshooting
- Flame sensor microamp testing
- Motor capacitor checks
- Variable frequency drive diagnostics
The Amprobe AM-540 is a strong HVAC-focused multimeter for technicians who need electrical, temperature, capacitance, and flame-sensor diagnostic functions in one tool.
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