Inability to start testing with the 3174 insulation withstanding tester

QI’ve purchased a 3174 and have just opened the box. Why can’t I use the instrument to conduct a test?


The instrument ships with its double-action function activated for safety reasons. This function ensures that measurement does not start if the START button is not pressed within 0.5 seconds of the STOP button being pressed. If you do not require this function to be enabled, it can be disabled as described on page 81 of the user manual.