Installation
2-9
A. Single Channel Module B. Dual Channel Module
Figure 2-5 Load Connection with the Tailor-made Spanner
2.6.2 Remote Sensing Connections
There are two sensing points in the Electronic Load module. One is measurement at Load
terminal, and another is at Vsense. The Load module will automatically switch to Vsense
when Vsense terminals are connected to UUT, otherwise it will measure at Load terminals.
Remote sensing compensates for voltage drop in applications that require long lead lengths.
It is useful when a module is operating in CV or CR mode, or when it needs precise
measurement. Figure 2-4 also illustrates a typical setup for remote sensing operation.
The potential of Vsense red connector must be higher than that of
Vsense black connector.
Due the nature of load, the associate internal designs are shared for
use. Follow the precautions listed below for operation.
1.
The internal resistance of each Electronic Load is different and
varied when connecting to a UUT. Use a professional digital power
meter if more accurate voltage measurement is required.
2.
Use the load UUT Vsense or Local terminal to do voltage
measurement. Connect the negative ends is suggested to avoid any
possible loop current that may affect the measurement result.
3.
Contact Chroma technical service center if there is a need to use
the UUT voltage measurement function as a power meter.
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