NOVUS AUTOMATION
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The figures below show the required electrical connections.
The loop OUT1 must always be powered in the 4-20 mA model!
Figure 5 –
4-20 mA connections
Figure 6 –
0-10 Vdc connections
Figure 7 –
4-20 mA connections with single source
Figure 8 –
4-20 mA model with single source and load with 2
input channels
In the figures above,
LOAD
represents the measuring instrument of the output signal (indicator, controller, register, etc.).
The connection wires go inside the transmitter trough to the cable gland mounted in the transmitter housing.
INSTALLATION RECOMMENDATIONS
•
Conductors of small electric signals must be separated from activation conductors or higher current or power in the system plan. If possible, in
grounded conduits.
•
The instrument supply must come from a network proper for instrumentation.
•
In control and monitoring applications, it is essential to consider what may happen when any part of the system fails.
•
It is recommended to use RC FILTERS (47
Ω
and 100 nF, series) in parallel with coils of contactors and solenoids, etc.
CARE WITH THE SENSORS
The calibration of the humidity sensor may change in case it is exposed to contaminating vapors or to high humidity and temperature conditions for
extended periods. In order to speed up the calibration restoration, proceed as described below:
•
Remove the sensor from the capsule.
•
Wash it with water in case there are solid particles on it.
•
Place it within an 80 °C (176 °F) (±10 °C) oven for 24 hours.
•
Place it for 48 hours in a place with a temperature between 20 °C (68 °F) and 30 °C (86 °F) and humidity over 75 % RH.
•
Place the sensor back in the capsule.
