4 to 20 mA USB Current Data Logger – Triplett ADL20

Triplett ADL20 — 4 to 20 mA USB Current Data Logger

The Triplett ADL20 is a USB data logger designed to record 4 to 20 mA DC current signals commonly used in process control and instrumentation. It provides a convenient method to capture and retain loop current measurements for documentation, commissioning, and fault investigation. USB connectivity enables straightforward download of logged data to a PC for analysis and archival. By recording actual loop currents over time, the ADL20 helps technicians identify intermittent faults, verify sensor and transmitter performance, and validate system repairs. The device is appropriate for applications where traceable current-loop records are required without complex configuration. Its focus on the 4–20 mA range makes it a targeted tool for process technicians and maintenance teams working with industrial control signals.

Key Features:

• Records 4 to 20 mA DC current signals
• USB interface for data download to a PC
• Designed for monitoring standard 4–20 mA current loops

Specifications:

• Manufacturer: Triplett
• MPN: ADL20
• UPC: 0614395004811

Applications / Usage Context: The ADL20 is useful for field installers and low-voltage technicians who need to document current-loop behavior during system commissioning and troubleshooting. OEM customers can use the logger for validation of current-output sensors during product development. MRO teams will find it helpful for post-repair verification and preventative maintenance logging to confirm proper loop operation.

Tri-Tek Electronics is an authorized distributor for this product, providing nationwide availability and full manufacturer warranty support.