Timer calibration of withstanding voltage tester

QI would like to calibrate the timer of the 3153. When I set the timer to 1s, it takes about 1.3s to confirm the output voltage. Is the unit defective?


The 3153 verifies that the voltage reaches the set voltage using RMS calculations and it takes about 300ms to feed the information back to the programming.  For that reason, there ma be a delay.

Please use the TEST signal of EXT I/O to calibrate the timer.
In this case, please set the "TEST" signal to "1:  TEST signal OFF while TEST is flashing".
(7.15 of the instruction manual)