External Analogue Control; Load Connection - ITech IT8700 Series User Manual

Dc programmable electronic loads
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in the leads connected between load and measured object which affect the
accuracy of measurement, then the sense connection can be applied. Fig 3-10
illustrates a typical connection between module and device for remote sense
operation.
Take single channel module for example, there're two input connectors. One is
load input measurement terminal; the other is Vsense measurement terminal.
You should enable the remote sense function in the configure menu and then
connect the remote sense lines. The front panel of the module shows "sense".

3.6.5 External analogue control

You can control the voltage and current setting of the electronic load by the
analogue terminals: pin 7 and pin 8. 0-10V adjustable analogue simulate the
0-fullscale to regulate the input voltage and current of the electronic load(10V
indicate the full range of load voltage or current value)

3.7 Load connection

Before connect object to be measured to load, please remove the cover on the
output terminals of the load, and cover it after finishing the connection. Connect
the wiring to the positive/negative terminal on the rear panel of the module.
Please pay attention to the size, length and polarity when wiring. Please avoid
using wires of minimum specification of anti superheating which cannot supply
good load regulation. Generally speaking, if the wires are short enough, they
can control voltage drop less than 0.5V. In addition, bonding them together can
reduce induction and noise. Please lead wire from positive terminal on the rear
panel of module to positive terminal of object. Similarly, connect the
corresponding negative terminal. Figure 3-11 illustrates a typical connection of
the module with the device to be measured.
NOTE
The electric potential on the positive terminal of Vsense connector must be higher than
negative one.
Object
Object
待测物
待测物
待测物
待测物
待测物
待测物
待测物
待测物
待测物
待测物
待测物
待测物
+
+ +
+
+ +
+ +
+ +
+ +
+ +
+ +
+ +
+ +
+ +
+
+ +
Figure 3-10 Remote sense connection
Copyright © Itech Electronic Co., Ltd.
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Panel function introduction
27

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