Fieldpiece SC640 Clamp Meter

The Fieldpiece SC640 Swivel Head Clamp Meter is a heavy-duty top-of-the-line digital multimeter designed specifically for the rigorous demands of commercial HVACR technicians. Featuring True RMS (TRMS) technology, this meter provides precise readings on distorted waveforms, which is essential for troubleshooting variable frequency drives and modern high-efficiency motors. The 180-degree swivel head design allows for unobstructed viewing of the 5,000-count backlit display, even when clamped around crowded conductors in tight panels. This unit measures AC/DC microamps for flame diode testing, inrush current to diagnose starting capacitor issues, and dual temperature via K-type thermocouple inputs. With a CAT III 600V safety rating and the ability to measure up to 400A AC, the Fieldpiece SC640 is the primary tool for electrical diagnostics, offering autoranging convenience, capacitance up to 500 µF, and frequency measurements for comprehensive system analysis.

• 180-Degree Swivel Head: Enables easy viewing of the display in constrained electrical cabinets and awkward angles.
• Inrush Current Mode: Captures the starting current peak to accurately size breakers and diagnose motor winding health.
• Dual Temperature Display: Features a dedicated thermocouple port for measuring delta T, suction line, or liquid line temperatures simultaneously.
• Comprehensive Testing Suite: Includes functions for DC microamps, duty cycle, frequency, and continuity beeper for all-in-one job site utility.
• Magnetic Hanger: Integrated heavy-duty magnet allows for hands-free operation while probing live circuits.

How does the Swivel Head improve safety and accuracy?
The swivel design allows the user to position the display at eye level regardless of the orientation of the wire, reducing the need to twist the meter and risking lead detachment or contact with live components.

Can the SC640 be used for flame sensor troubleshooting?
Yes, the meter includes a dedicated DC microamps (µA) range, allowing for precise measurement of flame rectification signals in furnace controllers.

What is the benefit of True RMS on this model?
Standard meters often provide inaccurate readings when measuring non-sinusoidal loads like VFDs or electronic ballasts; True RMS ensures your amperage and voltage readings are correct for all load types.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.