Technical data

Agilent 41000 Administration Guide, Edition 3 2- 29
Installation and Operation
Maintenance
Model 300/400: Checking Interlock Circuit
Perform the following steps to check the operation of the interlock circuit of your
measurement system.
1. Connect the interlock cable between the B2220A’s interlock connector and the
instrument’s interlock connector.
2. If you use the auto prober, place the B2220A on the prober to set the prober sense
switch to the make position.
If you use your test fixture, close the top cover of the Agilent E3140A Test Fixture
Adapter.
3. Set the instrument’s all output to 0 (zero) V. The high voltage indicator must turn off.
4. Set a source output voltage to the value more than the instrument’s interlock limit value
(e.g. 42 V). The high voltage indicator must turn on.
5. Release the B2220A from the prober or open the E3140A top cover to set the prober
sense switch to the break position. The high voltage indicator must turn off. And the
instrument should cause an error or change voltage to 0
(zero) V. The response depends
on the instrument.