Distech Controls SC-AI-420 Manuel d'installation - Page 3
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Wiring
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Deactivate any power supplies until all connections are made to the device to prevent electrical shock or equipment damage.
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Follow proper electrostatic discharge handling procedures when installing the device.
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Use 22 AWG shielded wiring for all connections and do not locate the device wires in the same conduit with wiring used to supply inductive loads
such as motors.
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Make all connections in accordance with national and local codes.
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The analog input signal is connected to the IN+ and IN- terminals and the analog output signal is connected to the OUT+ and OUT- terminals. The
input and output signals are completely isolated from each other.
Factory Configurations
The Isolation Module is preset for 4-20 mA input / 4-20 mA output. The input signal may be changed by using the DIP switches as shown in Figure 5.
Calibration
The isolator is factory calibrated to ±0.1% accuracy on the 0-5 vdc input type. Using any other range will result in a transfer accuracy or <±1%. If a higher
accuracy signal is required simply apply the full-scale input signal and adjust the output signal to 20.00 mA using the calibration pot.
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Figure 5 Wiring Diagram.