HV contact check box is used with Chroma Electrical Safety Analyzer and Hipot Analyzer for judging if the test cable connecting to DUT is correct and performing the contact check function.

1 - CONTACT Indicator LED: The indicator LED is lighted while test cables of OUTPUT HV and RTN terminals are connected to DUT exactly.

2 - CONTACT Short-circuit Signal: These two contacts will be short-circuited while test cables of OUTPUT HV and RTN terminals are connected to DUT exactly. The maximum short-circuited current flows through these two contacts which should be less than 0.5A.

3 - DC POWER INPUT: 24V DC power input terminal. Only one can select one of the connectors to supply the power.

4 - RTN Input Terminal: Connect the RTN terminal of the Safety Analyzer or Hipot Analyzer to this RTN input terminal.

5 - HV Input Terminal: Connect the HV output terminal of the Safety Analyzer or HIpot Analyzer to this HV input terminal.

6 - GND Terminal: It is the safety grounding terminal. Please use an appropriate tool to connect it to the earth properly. If it is not properly grounded, the EST Analyzer chassis may contain high voltage when the power circuit or any devices cable is shorted with the grounding terminal, and it is very dangerous as anyone who touches it may cause an electric shock incident. Therefore, the safety ground terminal must connect to the earth properly. Connect the HV output terminal of the Safety Analyzer or Hipot Analyzer to this HV input terminal. 

1 - HV Output Terminal: High electric potential terminal of HV output. Connect these two HV output terminals to DUT simultaneously to proceed HV contact check function.

2 - RTN Terminal: Common test terminal is a reference terminal as high voltage testing, i.e., a low electric potential terminal. Connect these two RTN terminals to DUT simultaneously to proceed RTN contact check function.