ABB RELION REX640 Technical Manual page 172

Basic functions
When a resistance type signal is connected to the RTD channel and the application
requires a linear scaling of the input range, the
to "Dimensionless" so that the input range can be linearly scaled with the settings
Input minimum and Input maximum to Value minimum and Value maximum . When
resistance is used as a value unit,
to "Ohm", the default range (0...4000 Ω) can be decreased with the
and
RTD temperature vs. resistance
The resistance values of temperature sensors at specified temperatures are given in
Table 102
Table 102: Temperature vs. resistance
Temp °C
–40
–30
–20
–10
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
172
Value minimum settings.
.
Platinum TCR 0.00385
Pt 100
84.28
88.22
92.16
96.09
100.00
103.90
107.79
111.67
115.54
119.40
123.24
127.08
130.90
134.71
138.51
142.29
146.07
149.83
153.58
157.33
161.05
164.77
168.48
172.17
175.86
Value unit setting value has to be set
Value unit has to be "Ohm". When Value unit is set
Nickel TCR 0.00618
Pt 250 Ni 100
210.70 79.13
220.56 84.15
230.40 89.30
240.21 94.58
250.00 100.00
259.76 105.55
269.48 111.24
279.18 117.06
288.85 123.01
298.49 129.11
308.10 135.34
317.69 141.72
327.24 148.25
336.77 154.93
346.26 161.78
355.73 168.79
365.17 175.97
374.58 183.33
383.96 190.89
393.31 198.63
402.64 206.59
411.93 214.76
421.20 223.15
430.43 231.78
439.64 240.66
1MRS759142 F
Value maximum
Ni 120 Ni 250
94.96 197.83
100.97 210.36
107.16 223.24
113.50 236.45
120.00 250.00
126.66 263.88
133.48 278.09
140.47 292.64
147.61 307.53
154.93 322.76
162.41 338.35
170.06 354.30
177.90 370.63
185.92 387.34
194.13 404.45
202.55 421.97
211.17 439.93
220.00 458.34
229.06 477.22
238.36 496.59
247.91 516.47
257.71 536.89
267.78 557.88
278.14 579.46
288.79 601.65
REX640
Technical Manual