Specifications

Technical Specifications Appendix A
433
EM 231 RTD Module Ranges
EM 231 RTD temperature ranges and accuracy for each type of RTD module are shown in Tables
A-34 and A-35.
Table A-34 Temperature Ranges (°C) and Accuracy for RTD Types
System W ord
(1 digit = 0.1 _ C)
Pt10000
Pt100, Pt200,
P
t
5
0
0
P
t
1
0
0
0
Ni100, Ni120,
N
i
1
0
0
0
1
Cu10 0--150Ω 0--300Ω 0-- 600Ω
Decimal Hex
P
t
1
0
0
0
0
Pt500, Pt1000 Ni1000
1
C
u
1
0
0
--
1
5
0
Ω
0
--
3
0
0
Ω
0
--
6
0
0
Ω
32767 7FFF
32766 7FFE ↑ ↑ ↑
32511 7EFF
176.383Ω 352.767Ω 705.534Ω
29649 6C01 150.005Ω 300.011Ω 600.022Ω
27648 6C00 150.000Ω 300.000Ω 600.000Ω
25000 61A8 ↑
18000 4650 OR
15000 3A98
13000 32C8 ↑ ↑
10000 2710 1000.0_C 1000.0_C
8500 2134 850.0_C
6000 1770 600.0_C ↑
3120 0C30 ↑ 312.0_C
2950 0B 86 295.0_C
2600 0A 28 260.0_C
2500 09C4 250.0_C
1 0001 0.1_C 0.1_C0.1_C0.1_C0.005Ω 0.011Ω 0.022Ω
0 0000 0.0_C 0.0_C0.0_C0.0_C0.000Ω 0.000Ω 0.000Ω
-- 1 FFFF -- 0 . 1 _C -- 0 . 1 _ -- 0 . 1 _C--0.1_C (negative values are not possible)
↓ ↓↓
--600 FDA8 --60.0_C
N
R
R
--1050 FBE6 --105.0_C
↓
--2000 F830 --200.0_C --200.0_ --200.0_C
--2400 F6A0 --240.0_C
--2430 F682 --243.0_C --243.0_C ↓
↓ ↓
--5000 EC78
--6000 E890 UR
--10500 D6FC ↓
--12000 D120
--20000 4E20
--32767 8001
--32768 8000
Accuracy over full span ±0.4% ±0.1% ±0.2% ±0.5% ±0.1% ±0.1% ±0.1%
Accuracy (normal range) ±4° C ±1° C ±0.6° C ±2.8° C ±0.15Ω ±0.3Ω ±0.6Ω
*OF = Overflow; OR = Overrange; NR = Normal range; UR= Underrange; UF = Underflow
↑ or ↓ indicate that all analog values exceeding the limits report the selected out-of-range v alue, 32767 (0x7FF.) or --32768 (0x8000).
1
Thelower limit for the normal range of 1000 Ω Ni with an alpha of 0.006178 is 0 degrees C. and there is no underrange.The 1000 Ω Ni with an alpha of 0.00672
is shown in this table.