NOVUS TxIso Rail- HART User Manual
NOVUS Sensors
MECHANICAL INSTALLATION (TXISORAIL-HART)
The TxIsoRail-HART is meant for DIN rail mounting. Its dimensions are drawn in
Figure 05 below.
Figure 05 – Transmitter dimensions TxIsoRail-HART
ELECTRICAL INSTALLATION (TXISORAIL-HART)
The Figure 06 shows the electrical connections required. The TxIsoRail-HART
wiring for thermocouple, RTD, resistance and voltage are done according to the
figure below.
Figure 06 – TxIsoRail-HART transmitter electrical connections
LOAD represents the 4-20 mA current measuring device (indicator, controller,
register, etc.).
Recommendations for Installation
Input signal conductors should run away from power and contactor wires, if
possible, in grounded conduits.
The instruments must be powered by a suitable network for instrumentation.
System failure should always be taken into account when designing a system to
avoid irreversible damage to equipment or people.
Installing RC filters (47 and 100 nF, in series) is strongly recommended at
contactor coils or any other inductors.
SPECIFICATIONS
Sensor input: Configurable. The supported sensors are listed Table 01, along with
their corresponding ranges.
Thermocouples: Types B, E, J, K, N, R, S and T to IEC 60584
Impedance >> 1 M
Pt100:
Excitation 0.35 mA = 0.00385, according to IEC 60751
Voltage:
0 to 50 mVdc
Impedance >> 1M
SENSOR TYPE
MEASUREMENT RANGE
MINIMUM MEASUREMENT
SPAN:
Thermocouple B
0 to 1820
°C
500 °C
Thermocouple E
-270 to 1000 °C
50 °C
Thermocouple J
-210 to 1200 °C
50 °C
Thermocouple K
-270 to 1372 °C
50 °C
Thermocouple N
-270 to 1300 °C
50 °C
Thermocouple R
-50 to 1768 °C
500 °C
Thermocouple S
-50 to 1768 °C
500 °C
Thermocouple T
-270 to 400 °C
50 °C
Pt100
-200 to 850 °C
20 °C
Pt500
-200 to 250 °C
20 °C
Pt1000
-200 to 250 °C
40 °C
Cu50
-50 to 150 °C
40 °C
Cu100
-50 to 150 ºC
40 °C
* Ni100
-60 to 180 °C
50 °C
* Ni500
-60 to 180 °C
20 °C
* Ni1000
-60 to 150 °C
20 °C
Resistance
0 to 400 Ohms
20 Ohms
Resistance
0 to 2000 Ohms
20 Ohms
Voltage
-10 to 75 mV
20 mV
Voltage
-100 to 100 mV
20 mV
Voltage
-100 to 500 mV
20 mV
Voltage
-100 to 2000 mV
20 mV
* = 5000 ppm/K or 6180 ppm/K
Table 01 – Transmitter sensor list
Output: 4-20 mA, 2-wire, loop powered;
Output Resolution: 0.3 A (12 bits);
Total Accuracy: Maximum error 0.3 % of the maximum range for thermocouples;
0.2 % of the maximum range for Pt100;
Power Supply: 10.5 to 35 Vdc (voltage across the transmitter);
Maximum Load (RL): RL (max. in Ohms) = (Vdc – 10.5) / 0.022 A [ ];
Where: Vdc= Power supply in Volts;
Operating Temperature: -40 to 85 °C;
Humidity: 20 to 90 % HR;
Electromagnetic Compatibility: EN61000-4-2, EN61000-4-3, EN61000-4-4,
EN61000-4-6;
Internal protection against polarity inversion in the loop voltage.
Cold junction compensation for thermocouples. Galvanic isolation.
Recommended wire gauge: 0.14 a 1.5 mm². Torque: 0.8 Nm.
T x I s o P a c k - H A R T a n d
T x I s o R a i l - H A R T
O P E R A T I N G M A N U A L
Man 5001552
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 at
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