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Novus TxIsoBlock- HRT Guide Rapide page 2

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TRANSMITTER DIMENSIONS
ELECTRICAL CONNECTIONS
SPECIFICATIONS
Sensor input: User defined. The supported sensors are listed in Table 1, along
with their maximum ranges.
Thermocouples: Types K, J, R, S, T, N, E, and B, accoding to IEC 60584
(ITS-90).Impedance >> 1 MΩ.
Pt100:
Excitation 0.15 mA, α = 0.00385, according IEC 60751
(ITS-90).
For 2-wire sensors, tie terminals 3 and 4 together.
Pt1000:
Excitation 0.20 mA, α = 0.00385, according IEC 60751
(ITS-90).
For 2-wire sensors, tie terminals 3 and 4 together.
NTC R
:
10 kΩ ± 1 %, B
= 3435
25°C
25/85
Voltage:
0 to 50 mVdc. Impedance >> 1 MΩ
Maximum Measurement
Minimum
Sensor Type
Range
Retransmission Range
-150 to 1370 °C
50 °C
Thermocouple K
(-238 to 2498 °F)
(90 °F)
-100 to 760 °C
50 °C
Thermocouple J
(-148 to 1400 °F)
(90 °F)
-50 to 1760 °C
200 °C
Thermocouple R
(-58 to 3200 °F)
(360 °F)
-50 to 1760 °C
200 °C
Thermocouple S
(-58 to 3200 °F)
(360 °F)
-160 to 400 °C
50 °C
Thermocouple T
(-256 to 752 °F)
(90 °F)
-270 to 1300 °C
50 °C
Thermocouple N
(-454 to 2372 °F)
(90 °F)
-90 to 720 °C
50 °C
Thermocouple E
(-130 to 1328 °F)
(90 °F)
500 to 1820 °C
200 °C
Thermocouple B
(932 to 3308 °F)
(360 °F)
-200 to 650 °C
30 °C
Pt100
(-328 to 1202 °F)
(54 °F)
-200 to 650 °C
30 °C
Pt1000
(-328 to 1202 °F)
(54 °F)
-30 to 120 °C
10 °C
NTC
(-22 to 248 °F)
(18 °F)
Voltage
0 to 50 mV
3 mV
Table 1 – Sensors accepted by the transmitter
Switch-on delay: < 10 s with damping filter set to factory setting. The accuracy is
only guaranteed after 15 min.
Terms of reference: Ambient: 25 °C (77 °F); voltage: 24 V, load: 250 Ω.
Stabilization time of 15 minutes after any setting is required.
Temperature Effect: NTC: < 0.11 % FS / 25 °C (45 °F)
Other sensors: < 0.05 % FS / 25 °C (45 °F)
(FS = Full Scale)
Response time: Typical 6 s with factory damping filter. It is the maximum time
between the appearance of a temperature step in the input and the output
reaches 90% of the corresponding value in the retransmission.
HART Protocol Version: 7.
RTD cable resistance effect: 0.005 °C (0.009 °F) / Ω.
Maximum allowable cable resistance for RTD: 25 Ω.
Accuracy: Calibration error in relation to sensor measuring range (Full Scale).
CURRENT LOOP
HART
Typical
Minimun
Typical
Minimun
Sensor Type
Accuracy
Accuracy
Accuracy
Accuracy
Pt100
0.08 %
0.15 %
0.05 %
0.15 %
(-200 to 650 °C)
(-328 to 1202 °F)
Pt1000
(-200 to 650 °C)
0.07 %
0.15 %
0.04 %
(-328 to 1202 °F)
K, J, R, S, T, N,
0.07 % (*)
0.15 % (*)
0.04 % (*)
0.15 % (*)
E, B
mV
0.07 %
0.15 %
0.04 %
0.15 %
0.20 °C
0.45 °C
0.15 °C
0.45 °C
NTC
(0.36 °F)
(0.81 °F)
(0.27 °F)
(0.81 °F)
Table 2 – Accuracy of input types
(*) Add cold junction compensation: < ± 1 °C (1.8°F).
Power supply influence: < 0.005 % / V (percentage of the full measure range).
Output: 4-20 mA current, 2-wired; linear and proportional to the configured range.
Output Resolution (4-20 mA): 0.25 µA.
Power supply: 8.5 to 36 Vdc (output 4-20 mA).
Maximum load (RL):
RL (max.) = (Vdc – 8.5) / 0.0215 [Ω]
Where: Vdc = Power supply voltage (8.5 to 36 Vdc)
Operating Temperature: -40 to 85 °C.
Humidity: 0 to 90 % RH.
It presents electrical isolation between input and output of 1.5 kVrms.
Internal protection against reverse polarity of the supply voltage.
Cold junction compensation for thermocouples.
Connection Wire Cross Section: 0.14 a 1.5 mm².
Screw Tightening: 0.8 Nm.
Housing: Polyamide.
Certification: CE and HART®.
T E M P E R A T U R E T R A N S M I T T E R
T x I s o B l o c k - H R T
Q U I C K
G U I D E
0.15%
WARRANTY
Warranty
conditions
are
available
www.novusautomation.com/warranty.
QG 5010015 V1.1x
on
our
website

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