You can use the Keithley Instruments connector CS-1616-3,
supplied with the 2470, to make the interlock connection
to the rear panel. You must supply connection wire. The
recommended wire is:
• 20 AWG to 26 AWG copper alloy
• 7 to 19 bare and tinned strands
• 0.14 mm
2
to 0.50 mm
2
•
Flexible vinyl, semi-flexible vinyl, polyethylene, x-linked
polyethylene, or PTFE
To ensure proper interlock operation, the external interlock
switch and connection wires must be less than 10 Ω when
the switch is closed.
The interlock pin locations and connections are shown in the
following figure. The pins are:
• Pin 3: Earth and chassis ground
• Pin 2: Interlock
• Pin 1: +6 V DC out (current limited)
NOTE
For the examples shown in this quick start guide, you do not
need to use an interlock. The 2470 works on all current ranges
and up to ±42 volts without asserting the interlock.
