To Install An Interlock Circuit - Keysight Technologies B1505A Configuration Manual

To Install an Interlock Circuit

The interlock circuit is designed to prevent electrical shock when a user touches the
measurement terminals.
You must install an interlock circuit on a shielding box to prevent hazardous voltages when
the door of the shielding box is open.
Figure 5-24
on your DUT interface. And
circuit.
WARNING Potentially hazardous voltages may be present at the Force, Guard, and Sense
terminals when the interlock terminals are shorted.
Figure 5-24 Interlock Connector Pin Assignments
Table 5-38 Recommended Parts
Keysight B1505A Configuration and Connection Guide
shows the pin assignments of the interlock connector that should be mounted
6 1
5 2
4 3
Connector side
Keysight Part
No.
N1254A-402 Interlock micro switch
1252-1419 Interlock connector (6 pin, female)
1450-0641 LED (V

Wire 24AWG, 600 V, 150 degree C or equivalent
Connection Guide for Wafer Prober and Your Own Test Fixture
Table 5-38 lists the required parts to make the interlock
Interlock switch
1
2
3
Wiring side
Description
2.1 V @ I
= 10 mA)
F F
To Install an Interlock Circuit
6
5
LED
4
Quantity
2
1
1
5-47