AEMC Instruments L461 Data Logger, Single Channel, AC/DC Voltage Measure, True RMS, USB, DL4 Series

DL4 Series Data Logger

• Measures both AC and DC voltage for modern electrical systems
• True RMS measurement ensures dependable voltage readings
• Ideal for solar PV systems and electrical distribution monitoring
• Selectable 300A or 3000A range
• Real-time and maximum values displayed on backlit LCD, 1 s trends available through control panel software
• Wide-range from (10 to 1200) Vac and (10 to 1700) Vdc
• Wi-Fi and USB connectivity for remote access and configuration
• Extended recording mode supports long-term voltage studies

The AEMC Data Logger Model L461 is the only logger in the L400 Series that measures voltage - and the only one in the series that handles DC. It's a 2-input, single-channel TRMS AC/DC voltage quality logger built specifically for distribution monitoring and solar PV applications, with a voltage range that covers virtually every situation you'll encounter; up to 1,200 VAC for AC circuits and up to 1,700 VDC for DC systems including solar strings, battery banks, and DC bus rails. The two inputs - COM and +/- connect directly to your voltage leads and alligator clips, which are included in the box.

The standout capability for the L461 is its 1-second TRMS trend logging. That 1s data - accessible through the DataView Control Panel - enables basic voltage quality analysis; documenting voltage sags, swells, and fluctuations at a resolution that longer-interval loggers simply can't provide. For solar PV verification, distribution auditing, or any application where voltage stability matters, this is the meaningful differentiator.

Like the rest of the L400 Series, the L461 runs a built-in web server. Connect via Wi-Fi, open a browser, and you're live - no software, no app, no laptop needed on site. Battery or USB power keeps it running continuously when plugged into a panel outlet or wall adapter.

In The Box

• USB to micro USB cable
• US wall plug to USB adapter
• Set of 2, 10ft (3 m) Color-coded ST/ST leads
• (2) color-coded alligator clips (red/black)
• (3) AA alkaline batteries
• Quick start guide
• USB drive with DataView software
• User manual