User Manual Instruction Manual

Publication 1746-UM009B-EN-P - September 2007
Module Specifications 79
Overall Accuracy at 25 °C (77 °F) ±0.440% of full scale
Overall Accuracy at 60 °C (140 °F) ±0.750% of full scale
Overall Accuracy Drift ±88 ppm/°C (max)
Gain Error at 25 °C (77 °F) ±0.323% of full scale
Gain Error at 0…60 °C (32…140 °F) ±0.530% of full scale
Gain Error Drift ±79 ppm/°C (max)
Offset Error at 0…60 °C (32…140 °F) ±4 LSB (max)
Offset Error at 25 ° C (77 °F) ±2 LSB (typical)
Offset Error Drift
±0.14 LSB/°C (max
(1)
)
Overvoltage Protection (IN+ to IN–) 220V dc or ac RMS, continuously
(1)
Computed by box method: 2 [max offset error] / 60 °C
Current-loop Input Specifications - 1746-FIO4I, 1746-FIO4V
Description Specification
Input Operating Range 0…20 mA (nom)
0…30 mA (max)
Input Voltage ±7.5V dc or ac RMS (max)
Current Input Coding Range (0…20 mA) 0…2047 counts
Input Impedance
250
Ω (nom)
Resolution 9.7656 µA per bit
Overall Accuracy at 25 °C (77 °F) ±0.510% of full scale
Overall Accuracy at 60 °C (140 °F) ±0.850% of full scale
Overall Accuracy Drift ±98 ppm/°C of full scale (max)
Gain Error at 25 °C (77 °F) ±0.400% of full scale
Gain Error at 0…60 °C (32…140 °F) ±0.707% of full scale
Gain Error Drift ±89 ppm/°C (max)
Offset Error at 0…60 °C (32…140 °F) ±4 LSB
Offset Error at 25 °C (77 °F) ±2 LSB (typical)
Offset Error Drift
±0.14 LSB/°C (max
(1)
)
(1)
Computed by box method: 2 [max offset error] / 60 °C
Overvoltage Protection 7.5V ac RMS (max)
Voltage Input Specifications - 1746-FIO4I, 1746-FIO4V
Attribute Value