10" colour touchscreen: 1805 & 1886 series
Modern digital technology for safety-current-limited applications or those at 500 VA / 200 mA.
A verification test must be carried out regularly for each series production. The test box simulates faults for all important safety tests. In contrast to calibration, the verification test takes only a few minutes. Like the tester and the testing system, the test verification box itself must be calibrated at least once a year.