Rockwell Automation 1746-NR4 SLC RTD/Resistance Input Module User Manual - Manual (Page 119)

Publication 1746-UM008B-EN-P - December 2006
Specifications 119
Module Accuracy
Channel turn-off time Requires up to one module update time.
Reconfiguration time Requires up to one module update time plus
one of the following:
• 250 Hz Filter = 124 ms
• 60 Hz Filter = 504 ms
• 50 Hz Filter = 604 ms
• 10 Hz Filter = 3,004 ms
RTD excitation current Two current values are user-selectable:
• 0.5 mA - Recommended for use with
higher resistance ranges for both RTDs
and direct resistance inputs (1000
Ω
RTDs and 3000
Ω resistance input).
Refer to RTD manufacturer for
recommendations. Cannot use for 10
Ω
Copper RTD.
• 2.0 mA - Must use for 10 Ω Copper RTD.
Recommended to use for all other RTD
and direct resistance inputs, except
1000
Ω RTDs and 3000 Ω resistance
input ranges are limited. Refer to RTD
manufacturer for recommendations.
Input Specifications
RTD Temperature Ranges, Resolution, and Repeatability
RTD Type
Temp. Range
(0.5 mA Excitation)
(4)
Temp. Range
(2.0 mA Excitation)
(4)
Resolution Repeatability
Platinum (385)
(1)
100 Ω -200…850 °C
(-328…1562 °F) -200…850 °C
(-328…1562 °F) 0.1 °C
(0.2 °F)
±0.2 °C
(±0.4 °F)
200
Ω
-200 …850 °C
(-328…1562 °F) -200 …850 °C
(-328…1562 °F) 0.1 °C
(0.2 °F)
±0.2 °C
(±0.4 °F)
500
Ω
-200…850 °C
(-328…1562 °F) -200…850 °C
(-328…1562 °F) 0.1 °C
(0.2 °F)
±0.2 °C
(±0.4 °F)
1000 Ω -200…850 °C
(-328…1562 °F)
-200…850 °C
(-328…1562 °F) 0.1 °C
(0.2 °F)
±0.2 °C
(±0.4 °F)
Platinum (3916)
(1)
100
Ω
-200…630 °C
(-328…1166 °F) -200…630 °C
(-328 …1166 °F) 0.1 °C
(0.2 °F)
±0.2 °C
(±0.4 °F)
200 Ω -200…630 °C
(-328…1166 °F) -200…630 °C
(-328…1166 °F) 0.1 °C
(0.2 °F)
±0.2 °C
(±0.4 °F)
500 Ω -200…630 °C
(-328 …1166 °F) -200…630 °C
(-328 …1166 °F) 0.1 °C
(0.2 °F)
±0.2 °C
(±0.4 °F)
1000
Ω -200…630 °C
(-328 …1166 °F)
-200…230 °C
(-328 …446 °F) 0.1 °C
(0.2 °F)
±0.2 °C
(±0.4 °F)
Copper (416)
(1)(2)
10 Ω
Not allowed.
(5) -100 …260 °C
(-148…500 °F) 0.1 °C
(0.2 °F)
±0.2 °C
(±0.4 °F)