Publication 1769-UM005A-EN-P
Module Data, Status, and Channel Configuration
4-33
Effects of
Autocalibration on
Accuracy
The module performs autocalibration to correct for drift errors over
temperature. Autocalibration occurs immediately following configuration
of a previously unselected channel, during power cycle of enable
channels and every 5 minutes if so configured. The table below shows
module accuracy with and without calibration.
Table 4.18 Module Accuracy
Input Type
(1)
With Autocalibration
Without Autocalibration
Maximum Error at 25
°°°°
C (77°F)
Maximum Error at 60
°°°°
C (140°F) Temperature Drift (0
°°°°
C to 60
°°°°
C)
(32°F to 140°F)
100
Ω
Platinum 385
±
0.5
°
C (±0.9°F)
±
0.9
°
C (±1.62°F)
±
0.026
°
C/
°
C (±0.026°F/°F)
200
Ω
Platinum 385
±
0.5
°
C (±0.9°F)
±
0.9
°
C (±1.62°F)
±
0.026
°
C/
°
C (±0.026°F/°F)
500
Ω
Platinum 385
±
0.5
°
C (±0.9°F)
±
0.9
°
C (±1.62°F)
±
0.026
°
C/
°
C (±0.026°F/°F)
1000
Ω
Platinum 385
±
0.5
°
C (±0.9°F)
±
0.9
°
C (±1.62°F)
±
0.026
°
C/
°
C (±0.026°F/°F)
100
Ω
Platinum 3916
±
0.4
°
C (±0.72°F)
±
0.8
°
C (±1.44°F)
±
0.023
°
C/
°
C (±0.023°F/°F)
200
Ω
Platinum 3916
±
0.4
°
C (±0.72°F)
±
0.8
°
C (±1.44°F)
±
0.023
°
C/
°
C (±0.023°F/°F)
500
Ω
Platinum 3916
±
0.4
°
C (±0.72°F)
±
0.8
°
C (±1.44°F)
±
0.023
°
C/
°
C (±0.023°F/°F)
1000
Ω
Platinum 3916
±
0.4
°
C (±0.72°F)
±
0.8
°
C (±1.44°F)
±
0.023
°
C/
°
C (±0.023°F/°F)
10
Ω
Copper 426
±
0.6
°
C (±1.08°F)
±
1.1
°
C (±1.98°F)
±
0.032
°
C/
°
C (±0.032°F/°F)
120
Ω
Nickel 618
±
0.2
°
C (±0.36°F)
±
0.4
°
C (±0.72°F)
±
0.012
°
C/
°
C (±0.012°F/°F)
120
Ω
Nickel 672
±
0.2
°
C (±0.36°F)
±
0.4
°
C (±0.72°F)
±
0.012
°
C/
°
C (±0.012°F/°F)
604
Ω
Nickel-Iron 518
±
0.3
°
C (±0.54°F)
±
0.5
°
C (±0.9°F)
±
0.015
°
C/
°
C (±0.015°F/°F)
150
Ω
±
0.15
Ω
±
0.25
Ω
±
0.007
Ω
/
°
C (±0.012
Ω
/°F)
500
Ω
±
0.5
Ω
±
0.8
Ω
±
0.023
Ω
/
°
C (±0.041
Ω
/°F)
1000
Ω
±
1.0
Ω
±
1.5
Ω
±
0.043
Ω
/
°
C (±0.077
Ω
/°F)
3000
Ω
±
1.5
Ω
±
2.5
Ω
±
0.072
Ω
/
°
C (±0.130
Ω
/°F)
(1) The accuracy values apply to both current sources.
Содержание Compact 1769-IR6
Страница 1: ...Compact I O RTD resistance Input Module Catalog Number 1769 IR6 User Manual AB PLCs ...
Страница 10: ...Publication 1769 UM005A EN P P 4 ...
Страница 40: ...Publication 1769 UM005A EN P 3 16 Installation and Wiring ...
Страница 74: ...Publication 1769 UM005A EN P 4 34 Module Data Status and Channel Configuration ...
Страница 115: ...AB PLCs ...
Страница 116: ...Publication 1769 UM005A EN P February 2001 2001 Rockwell International Corporation Printed in the U S A ...