6-24 Keysight E5260/E5270 User’s Guide, Edition 6
Function Details
Interlock Function
Interlock Function
The interlock function is designed to prevent electrical shock when a user touches
the measurement terminals. If the Interlock terminal is open, maximum output is
limited to ± 42 V.
To perform high voltage measurement more than ± 42 V, connect the Interlock
terminal to an interlock circuit of test fixture or connector plate. The interlock circuit
must have one LED and two mechanical switches placed near the shielding box
opening doors. And they must be connected together. For details on how to install
the interlock circuit, see “To Make an Interlock Circuit” on page 3-26.
The interlock function works as shown below.
• When the interlock circuit is open, maximum output is limited to ± 42 V.
• When the interlock circuit is close, source channel can force its maximum output
value.
• When the interlock circuit is opened in the high voltage condition more than
± 42 V, output voltage is set to 0 V immediately.
CAUTION If the actual output value is not set to 0 V within 120 msec, the Keysight
E5260/E5270 automatically performs the initialization. Then perform self-test. Any
module may be defective.
WARNING Dangerous voltage, instrument maximum output voltage may appear at Force,
Guard, and Sense terminals if the Interlock terminal is closed.
Une tension dangereuse, une tension de sortie maximale de l'appareil peut
apparaître aux bornes Force, Guard et Sense si la borne Interlock est fermée.
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