6240B DC Voltage Current Source/Monitor Operation Manual
5.1.4 Connection for High Current Measurement
5-6
5.1.4 Connection for High Current Measurement
Be sure to use 4-wire connection to measure high current.
Twist together the cables between HI OUTPUT and LO OUTPUT and between HI SENSE and LO
SENSE from the output terminals to the DUT terminals as in Figure 5-6 to avoid overshoot or delay in
response because of cable inductance.
Use twisted pair shielded cables for OUTPUT and SENSE as in Figure 5-6 to prevent induction noise.
Especially, be sure to use shielded cables when measuring current of 1 A or less.
The cables for OUTPUT must satisfy the thickness requirement below, and the voltage difference between
OUTPUT and SENSE must be 1.0 V or less for both HI and LO.
Be sure to set the voltage between the HI SENSE and LO SENSE terminals within the maximum output
range.
Figure 5-6 Connection for High Current Measurement
Table 5-1 Tolerable Current and Wire Thickness
Current Wire (AWG)
to 500 mA 24
to 2 A 22
to 3.2 A 18
to 4 A 16
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