ADCMT 6253 - Connection for High Current Measurement

6253 DC Voltage Current Source/Monitor Operation Manual
4.1.4 Connection for High Current Measurement
4-7
4.1.4 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 terminal to the DUT terminal as in Figure 4-6 to avoid overshoot or delay in
response because of cable inductance.
To prevent induction noise, use twisted-pair shielded cables for OUTPUT and SENSE as in Figure 4-6.
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 3 V or less for both HI and LO.
There is a limit on the output range including this voltage difference. Be sure to set the voltage between
the HI OUTPUT and LO OUTPUT terminals within the maximum output range.
Figure 4-6 Connection for High Current Measurement
Tolerable Current and Wire Thickness
Current Wire (AWG)
2 A or less 22
3.2 A or less 18
10 A or less 14