New generation handheld DMM: the GDM-500 series

GW Instek rolled out the new generation handheld DMM - the GDM-500 series. The series features simplicity, easy-to-use, high accuracy, and durability. Other than being a powerful portable instrument for electrical and electronic engineers in their route operations, the series can also become a simple and basic T&M instrument for households.

Compared with the previous generation GDM300/400 series, the GDM-500 series not only inherits the power-saving automatic power-off function of the GDM300/400 series, rotary switch for various measurement functions, and the simple and easy-to-operate key design, but also fully incorporates the NCV (Non-Contact Voltage) function.

While facing the measurement situation where the voltage/current of the DUT is unknown, engineers are most concerned that the voltage/current of the DUT will exceed the measurement capability of the DMM, causing direct damage to the DMM. Therefore, the GDM-500 series is equipped with audible/visual alarms. Once the voltage/current exceeds the measurement range of the DMM, an alarm will sound immediately to avoid instrument damage caused by misuse by engineers.

The GDM-500 series has four models, including GDM-541, GDM-533, GDM-532, GDM-531. GDM-541/533/532 have the true RMS function, which is not affected by signal so as to make the measurement value more accurate; GDM-541/533 has the Analog Bar function and USB interface (more info).