Many or should we say nearly all of our testers are multifunctional and quite a few support functionalities uncommon for other devices of their type. However, there is only so much hardware that can be put in a portable and ergonomic package, necessitating use of adapters for specific applications.
The A 1722 PRCD adapter is one such accessory, designed for functional and electrical safety testing of single and three-phase portable residual current devices (PRCDs). It supports simulation of different error states and has connection inputs for testing of PE wire (if monitored by PRCD). Among supported tests is also the probe test (to test PRCD's touch electrode) in addition to other standard tests for PRCD testing.
More about A 1722 PRCD adapter
