Rockwell Automation 1762-IR4 RTD/Resistance Input Module - Manual (Page 78)

Publication 1762-UM003A-EN-P - February 2003
A-2 Specifications
Input Specifications
Specification 1762-IR4
Input Types
•
100
Ω
Platinum 385
•
200
Ω
Platinum 385
•
500
Ω
Platinum 385
•
1000
Ω
Platinum 385
•
100
Ω
Platinum 3916
•
200
Ω
Platinum 3916
•
500
Ω
Platinum 3916
•
1000
Ω
Platinum 3916
•
10
Ω
Copper 426
•
120
Ω
Nickel 672
•
120
Ω
Nickel 618
•
604
Ω
Nickel-Iron 518
•
0 to 150
Ω
•
0 to 500
Ω
•
0 to 1000
Ω
•
0 to 3000
Ω
Bus Current Draw (max.) 40 mA at 5V dc
50 mA at 24V dc
Heat Dissipation 1.5 Total Watts (The Watts per point, plus the minimum Watts, with all points enabled.)
Converter Type Delta-Sigma
Resolution Input filter and configuration dependent.
Common Mode Rejection 110 dB minimum at 50 Hz with the 10 or 50 Hz filter selected
110 dB minimum at 60 Hz with the 10 or 60 Hz filter selected
Normal Mode Rejection Ratio 70 dB minimum at 50 Hz with the 10 or 50 Hz filter selected
70 dB minimum at 60 Hz with the 10 or 60 Hz filter selected
Non-linearity
(in percent full-scale) ±0.05%
Typical Accuracy [Autocalibration Enabled]
at 25° C (77°F) Ambient with Module
Operating Temperature at 25° C (77°F)
(1)
±0.5°C (°F) for Pt 385
±0.4°C (°F) for Pt 3916
±0.2°C (°F) for Ni
±0.3°C (°F) for NiFe
±0.6°C (°F) for Cu ±0.15
Ω
for 150
Ω
range
±0.5
Ω
for 500
Ω
range
±1.0
Ω
for 1000
Ω
range
±1.5
Ω
for 3000
Ω
range
Typical Accuracy [Autocalibration Enabled]
at 0 to 55° C (+32 to +131°F)
(1)
±0.9°C (°F) for Pt 385
±0.8°C (°F) for Pt 3916
±0.4°C (°F) for Ni
±0.5°C (°F) for NiFe
±1.1°C (°F) for Cu ±0.25
Ω
for 150
Ω
range
±0.8
Ω
for 500
Ω
range
±1.5
Ω
for 1000
Ω
range
±2.5
Ω
for 3000
Ω
range
(1) Accuracy is dependent upon the Analog/Digital converter filter rate selection, excitation current selection, data format, and input noise.