This document describes a low-cost, pocket-sized current loop checker. It simulates output ranges of 4mA, 12mA, and 20mA from a transmitter and is ideal for checking calibration and serving as a current source for setting up engineering units on a process indicator or controller. The checker is accurate to 0.1mA and provides overload indication when the load exceeds 240Ω. It features a compact case with a push button output selector switch.
The EXTECH 412440 Current Loop Checker is a low-cost, pocket-sized device designed to simulate current loop outputs. It is ideal for checking calibration and setting up engineering units on process indicators or controllers.
The device features bright red LEDs to indicate simulation output or battery status. It provides accurate simulation of 4mA, 12mA, and 20mA ranges and includes an overload indication when the load exceeds 2400 ohms.
| Simulation Ranges | 4mA, 12mA and 20mA |
|---|---|
| Accuracy | 0.1mA |
| Overload Limit | 2400 ohms |
| Dimensions | 3.5 x 2.3 x 1" |
The device is accurate to 0.1mA.
The unit weighs 283.59 grams.