Allen-Bradley MicroLogix 1200 - Page 107

Publication 1762-UM001D-EN-P - March 2004
Specifications A-17
Table A.23 1762-IT4 Repeatability at 25°C (77°F)
(1) (2)
(1) Repeatability is the ability of the input module to register the same reading in successive measurements for the
same input signal.
(2) Repeatability at any other temperature in the 0 to 60°C (32 to 140°F) range is the same as long as the
temperature is stable.
Input Type Repeatability for
10 Hz Filter
Thermocouple J ±0.1°C [±0.18°F]
Thermocouple N (-110°C to +1300°C [-166°F to +2372°F]) ±0.1°C [±0.18°F]
Thermocouple N (-210°C to -110°C [-346°F to -166°F]) ±0.25°C [±0.45°F]
Thermocouple T (-170°C to +400°C [-274°F to +752°F]) ±0 .1°C [±0.18°F]
Thermocouple T (-270°C to -170°C [-454°F to -274°F]) ±1.5°C [±2.7°F]
Thermocouple K (-270°C to +1370°C [-454°F to +2498°F]) ±0.1°C [±0.18°F]
Thermocouple K (-270°C to -170°C [-454°F to -274°F]) ±2.0°C [±3.6°F]
Thermocouple E (-220°C to +1000°C [-364°F to +1832°F]) ±0.1°C [±0.18°F]
Thermocouple E (-270°C to -220°C [-454°F to -364°F]) ±1.0°C [±1.8°F]
Thermocouples S and R ±0.4°C [±0.72°F]
Thermocouple C ±0.2°C [±0.36°F]
Thermocouple B ±0.7°C [±1.26°F]
±50 mV ±6 μV
±100 mV ±6 μV
Table A.24 1762-IT4 Accuracy
Input Type
(1)
With Autocalibration Enabled Without Autocalibration
Accuracy
(2) (3)
for 10 Hz, 50 Hz and 60
Hz Filters (max.)
Maximum Temperature Drift
(2)
(4)
at 25°C [77°F]
Ambient
at 0 to 60°C
[32 to 140°F]
Ambient
at 0 to 60°C [32 to 140°F]
Ambient
Thermocouple J (-210°C to 1200°C [-346°F to 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°C to +1300°C [-328°F to 2372°F]) ±1°C [± 1.8°F] ±1.5°C [±2.7°F] ±0.0367°C/°C [±0.0367°F/°F]
Thermocouple N (-210°C to -200°C [-346°F to -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°C to +400°C [-382°F to +752°F]) ±1°C [± 1.8°F] ±1.5°C [±2.7°F] ±0.0349°C/°C [±0.0349°F/°F]
Thermocouple T (-270°C to -230°C [-454°F to -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°C to +1370°C [-382°F to
+2498°F])
±1°C [± 1.8°F] ±1.5°C [±2.7°F] ±0.4995°C/°C [±0.4995°F/°F]
Thermocouple K (-270°C to -225°C [-454°F to -373°F]) ±7.5°C [± 13.5°F] ±10°C [± 18°F] ±0.0378°C/°C [±0.0378°F/°F]