NOVUS TxIsoPack User Manual
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NOVUS AUTOMATION
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PT100 3-WIRES
Fig. 6 – Transmitter electrical connections (Pt100 3-wires)
PT100 4-WIRES
Fig. 7 – Transmitter electrical connections (Pt100 4-wires)
THERMOCOUPLES
Fig. 8 – Transmitter electrical connections (Thermocouple)
VOLTAGE (0-50 mV)
Fig. 9 – Transmitter electrical connections (0-50 mV)
OPERATION
The transmitter is perfectly factory-calibrated with standardized sensors, not
requiring any adjustment by the user.
The sensor offset can be also changed through the TxConfig software. The
USB connection can be made even with the transmitter connected to the
process and operating without causing errors in the measurement. See item
Zero Correction in the chapter CONFIGURATION of this guideline.
The uer must choose the most suitable sensor and range to the process. The
chosen range must not exceed the maximum range of measurement defined
for the sensor and should not be smaller than the minimum range for the
same sensor.
It is important to note that the accuracy of the transmitter is always based on
the maximum range of the sensor used, even when a mid-range was set.
Example:
The sensor Pt100 has a max. range of –200 to +650 °C and total
accuracy of 0.2 %, thus we can have an absolute error up to 1.7 °C (
0.2 % of 850 °C).
The absolute error is the same for a wide range as the maximum (-
200 to 650 ° C), to a narrower band User-defined. (For example: 0 to
100 °C.)
Note: When measurements are made at the transmitter, see if the Pt100
excitation current required by the calibrator is compatible with the Pt100
excitation current used in the transmitter: 0.17 mA.
SAFETY INFORMATION
Any control system design should take into account that any part of the
system has the potential to fail. This product is not a protection or safety
device and its alarms are not intended to protect against product failures.
Independent safety devices should be always provided if personnel or
property are at risk.
Product performance and specifications may be affected by its environment
and installation. It’s user’s responsibility to assure proper grounding,
shielding, cable routing and electrical noise filtering, in accordance with local
regulations, EMC standards and good installation practices.
SUPPORT AND MAINTENANCE
This product contains no serviceable parts inside. Contact our local
distributor in case you need authorized service. For troubleshooting, visit our
FAQ a
LIMITED WARRANTY AND LIMITATION OF LIABILITY
NOVUS warrants to the original purchaser that this product is free from
defects in material and workmanship under normal use and service within
one (1) year from the date of shipment from factory or from its official sales
channel to the original purchaser.
NOVUS liability under this warranty shall not in any case exceed the cost of
correcting defects in the product or of supplying replacement product as
herein provided and upon the expiration of the warranty period all such
liability shall terminate.
For complete information on warranty and liability limitations, check
appropriate section in our web site