Owner manual

20 MicroLogix 1200 RTD/Resistance Input Module
Publication 1762-IN014B-EN-P - July 2013
Input Specifications
Specification 1762-IR4
Input Types 100Ω Platinum 385
200Ω Platinum 385
500Ω Platinum 385
1000Ω Platinum 385
100Ω Platinum 3916
200Ω Platinum 3916
500Ω Platinum 3916
1000Ω Platinum 3916
10Ω Copper 426
120Ω Nickel 672
120Ω Nickel 618
604Ω Nickel-Iron 518
0…150Ω
0…500Ω
0…1000Ω
0…3000Ω
Converter Type Sigma-Delta
Resolution Input filter and configuration dependent.
Refer to the MicroLogix 1200 RTD/Resistance Input Module User
Manual, publication number 1762-UM003, for more information.
Common Mode Rejection 110 dB minimum @ 50 Hz with the 10 or 50 Hz filter selected
110 dB minimum @ 60 Hz with the 10 or 60 Hz filter selected
Normal Mode Rejection Ratio 70 dB minimum @ 50 Hz with the 10 or 50 Hz filter selected
70 dB minimum @ 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
±0.15Ω for 150Ω range
±0.5Ω for 500Ω range
±1.0Ω for 1000Ω range
±1.5Ω for 3000Ω range
(1) Accuracy is dependent upon the Analog/Digital converter filter rate selection, excitation current selection, data format, and
input noise.
Specification 1762-IR4
Typical Accuracy
[Autocalibration
Enabled] @ 0…55 °C
(32…131 °F)
±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
±0.25Ω for 150 Ω range
±0.8Ω for 500 Ω range
±1.5Ω for 1000 Ω range
±2.5Ω for 3000 Ω range
Accuracy Drift @
0…55
°C (32…131°F)
±0.026 °C/°C (0.026 °F/°F) for Pt 385
±0.023 °C/°C (0.023 °F/°F) for Pt 3916
±0.012 °C/°C (0.012 °F/°F) for Ni
±0.015 °C/°C (0.015 °F/°F) for NiFe
±0.032 °C/°C (0.032 °F/°F) for Cu
±0.007Ω/°C (0.012Ω/°F) for 150Ω range
±0.023Ω/°C (0.041Ω/°F) for 500Ω range
±0.043Ω/°C (0.077Ω/°F) for 1000Ω range
±0.072Ω/°C (0.130Ω/°F) for 3000Ω range
Repeatability
(1)
±0.1 °C (±0.18 °F) for Ni and NiFe
±0.2 °C (±0.36 °F) for other RTD inputs
±0.04Ω for 150Ω resistances
±0.2Ω for other resistances
Excitation Current Source 0.5 mA and 1.0 mA selectable per channel
Open-Circuit Detection
Time
(2)
6…1212 ms
Channel Update Time Input filter and configuration dependent. Refer to the MicroLogix 1200
RTD/Resistance Input Module User Manual, publication number
1762-UM003, for
more information.