Rockwell Automation Publication 1766-UM001O-EN-P - September 2021 147
Appendix A Specifications
1762-IT4 Accuracy
Input Type
(1)
With Auto-calibration Enabled Without Auto-calibration
Accuracy for 10 Hz, 50 Hz and 60 Hz Filters (max.)
Maximum Temperature Drift
(2)
at 25 °C [77 °F]
Ambient
at 0…60 °C
[32…140 °F] Ambient
at 0…60 °C [32…140 °F]
Ambient
Thermocouple J (-210…1200 °C [-346…2192 °F]) ±0.6 °C [± 1.1 °F] ±0.9 °C [± 1.7 °F] ±0.0218 °C/ °C [±0.0218 °F/ °F]
Thermocouple N (-200…1300 °C [-328…2372 °F]) ±1 °C [± 1.8 °F] ±1.5 °C [±2.7 °F] ±0.0367 °C/ °C [±0.0367 °F/ °F]
Thermocouple N (-210…-200 °C [-346…-328 °F]) ±1.2 °C [±2.2 °F] ±1.8 °C [±3.3 °F] ±0.0424 °C/ °C [±0.0424 °F/ °F]
Thermocouple T (-230…400 °C [-382…752 °F]) ±1 °C [± 1.8 °F] ±1.5 °C [±2.7 °F] ±0.0349 °C/ °C [±0.0349 °F/ °F]
Thermocouple T (-270…-230 °C [-454…-382 °F]) ±5.4 °C [± 9.8 °F] ±7.0 °C [±12.6 °F] ±0.3500 °C/ °C [±0.3500 °F/ °F]
Thermocouple K (-230…1370 °C [-382…2498 °F]) ±1 °C [± 1.8 °F] ±1.5 °C [±2.7 °F] ±0.4995 °C/ °C [±0.4995 °F/ °F]
Thermocouple K (-270…-225 °C [-454…-373 °F]) ±7.5 °C [± 13.5 °F] ±10 °C [± 18 °F] ±0.0378 °C/ °C [±0.0378 °F/ °F]
Thermocouple E (-210…1000 °C [-346…1832 °F]) ±0.5 °C [± 0.9 °F] ±0.8 °C [±1.5 °F] ±0.0199 °C/ °C [±0.0199 °F/ °F]
Thermocouple E (-270…-210 °C [-454…-346 °F]) ±4.2 °C [± 7.6 °F] ±6.3 °C [±11.4 °F] ±0.2698 °C/ °C [±0.2698 °F/ °F]
Thermocouple R ±1.7 °C [± 3.1 °F] ±2.6 °C [± 4.7 °F] ±0.0613 °C/ °C [±0.0613 °F/ °F]
Thermocouple S ±1.7 °C [± 3.1 °F] ±2.6 °C [± 4.7 °F] ±0.0600 °C/ °C [±0.0600 °F/ °F]
Thermocouple C ±1.8 °C [±3.3 °F] ±3.5 °C [±6.3 °F] ±0.0899 °C/ °C [±0.0899 °F/ °F]
Thermocouple B ±3.0 °C [±5.4 °F] ±4.5 °C [±8.1 °F] ±0.1009 °C/ °C [±0.1009 °F/ °F]
±50 mV ±15 μV±25 μV
±0.44
μV/ °C [±0.80μV/ °F]
±100 mV ±20 μV±30 μV
±0.69
μV/ °C [±01.25μV/ °F]
(1) The module uses the National Institute of Standards and Technology (NIST) ITS-90 standard for thermocouple linearization.
(2) Temperature drift with auto-calibration is slightly better than without auto-calibration.
For more detailed 1762-IT4 accuracy information, see publication 1762-UM002.
Output Specifications – 1762-IF2OF2, 1762-OF4
Specification 1762-IF2OF2 1762-OF4
Number of outputs 2 single-ended (unipolar)
4 single-ended (unipolar)
(2)
Update time (typical) 4.5 ms
D/A converter type Resistor string R-2R Ladder Voltage Switching
Resistive load on current output 0…500 Ω (includes wire resistance) 0…500 Ω (includes wire resistance)
Load range on voltage output > 1 kΩ > 1 KΩ
Reactive load, current output < 0.1 mH < 0.1 mH
Reactive load, voltage output < 1 μF< 1 μF
Typical overall accuracy
(1)
±1.17% full scale at -20…65 °C
(2)
±0.5% full scale at 25 °C
±1.17% full scale at -20…65 °C
(2)
±0.5% full scale at 25 °C
Output ripple
range 0…500 Hz
(see output range)
< ±0.1% < ±0.1%
Non-linearity (in percent full scale)
< ±0.59%
(2)
< ±0.59%
(2)
Open and short-circuit protection Continuous Continuous
Output protection ±32 mA ±32 mA
(1) Includes offset, gain, non-linearity and repeatability error terms.
(2) Only applicable for Series B and Series C I/O modules.
Valid Input/Output Data Word Formats/Ranges – 1762-IF2OF2
Normal Operating Range Full Scale Range RAW/Proportional Data Scaled-for-PID
0…10V DC
10.5V DC 32760 16380
0.0V DC 0 0
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