Today’s review will be on the Fieldpiece SC640 Digital Clamp Meter. Fieldpiece is one of the leaders in designing and releasing tools for the HVAC industry. In fact, they exclusively make testing equipment for the HVAC Industry. The Fieldpiece SC640 is a brand new meter from Fieldpiece and it complies with new UL Safety Standards that are coming out. What this means is you can no longer have the test leads and the thermocouple plugged in at the same time. This was done to safeguard against accidental electrocution to you, the user. The Fieldpiece SC640 Clamp Meter is equipped with TRMS and measures AC/DC Volts, 400A, Duty Cycle%, Temperature, Capacitance, and can measure Inrush. The Inrush function is a new addition for Fieldpiece and is very simple to use. Before starting a system you simply push the Inrush button on the side of the meter and you are good to go. The Inrush function measures the actual supplied current to “jumpstart” a system. This new meter also features a swivel style clamp that allows for easier viewing of the screen no matter the orientation of the wires you are testing.  Another great feature of the SC640 is the lights they put in. There is the basic back light for the screen but now Fieldpiece offers a backlight for the dial itself and a light inside the jaw. How often have you found yourself in an attic and had to hold a flashlight to see what you were doing? Don’t worry though; Fieldpiece has not given up on its modular expandability. The Fieldpiece SC640 still allows use of their modular heads through connection via the test leads. This allows you to expand your testing capabilities without having to keep purchasing new tools or replace obsolete instruments. What are your thoughts on the modular expansion heads that are offered by Fieldpiece? Let me know in the comments.

Cheers and Happy Testing,

-Sam