NP620 Pressure Transmitter
NOVUS AUTOMATION
2/3
ELECTRICAL CONNECTIONS
Fig. 2 – Electrical Connections
Recommendations for installation
•
Sensor signals conductors must go through the plant system
separate from power leads (loop). If possible, in grounded
conduits.
•
The instruments must be powered from the instrumentation power
supply circuit.
•
It is mandatory the use of RC FILTERS (electrical noise
suppressors) in contactor coils, solenoids, etc.
•
To improve the stability, immunity and safety of the measurement,
it is recommended to use the system grounding.
CONFIGURATION
When the transmitter is used with the factory setting, no further
action is required and the transmitter is ready to be installed.
When a new configuration is required, you should use the
Transmitter Configuration Kit. This kit includes the TxConfig-II
software, distributed free on the Novus website, and the TxConfig-
USB-DIN43650 interface, which can be purchased in our distribution
and reseller network.
To install the TxConfig-II software, run the setup file
TxConfigIISetup.exe
and follow the instructions of the installer.
The TxConfig interface must be connected to the transmitter
according to Fig. 3. The interface itself provides the electrical power
necessary for transmitter operation during configuration.
Fig. 3 – Connection of the TxConfig-USB
SOFTWARE CONFIGURATION
Fig. 4 – TxConfig II software main screen
When you run the TxConfig-II software, it will recognize
automatically the transmitter and will display the following
information:
1.
General Information:
This field shows information that identifying the transmitter. This
information should be sent to the manufacturer in an eventual
request for technical assistance.
2.
Unit:
Setting the pressure unit assumed for the measuring range
setting fields.
3.
Measuring Range:
Setting the measurement range assumed by the transmitter.
Lower Limit: Target pressure value for 4 mA current.
Upper Limit: Target pressure value for 20 mA current.
Minimum Range
Do not set a lower band (span) that the Minimum Range
indicated below in this same field.
4.
Sensor Failure: Sets the current output behaviour when the
transmitter experiences a fault:
Minimum: Output current goes to < 4 mA.
Maximum: Output current goes to > 20 mA.
5.
Zero Correction: It corrects small deviations presented in the
transmitter output, when there is no applied pressure.
6.
Send Configuration: It applies the new setup. Once sent, the
setup will be immediately adopted by the transmitter.
7.
Read Configuration: Reads the current setup in the transmitter
connected. The screen now presents the current setup that may
be changed by the user.
