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MELSEC-Q
3 SPECIFICATIONS
1 The selection ranges and accuracies have the following relationships.
Selection Range
Ambient Temperature
Pt100 and JPt100:
-20 to 120
Pt100:
-200 to 850
JPt100:
-180 to 600
0 to 55
0.300
1.615
1.140
25 5
0.090
0.553
0.390
Selection Range
Ambient Temperature
Pt100 and JPt100:
0 to 200
Pt100:
-60 to 180
0 to 55
0.470
0.450
25 5
0.145
0.135
2 Accuracy in ambient temperature and wire resistance when the offset/gain setting is set.
3 Accuracy per 1-degree temperature change
Example) Accuracy for the case of changing from 25 to 30
0.04% (Reference accuracy) + 0.0070%/ (Temperature coefficient) 5 (Temperature difference) = 0.075%
4 The conversion speed is a period from when a temperature is input and converted into a corresponding digital value until the value is
stored into the buffer memory.
When two or more channels are used, the conversion speed is "40ms number of conversion enabled channels".
5 For output in the case of disconnection detection, select any of "Value immediately before disconnection", "Up scale (maximum value
of measured temperature range + 5% of measured temperature range)", "Down scale (minimum value of measured temperature
range – 5% of measured temperature range)" or "Given value". (Refer to Section 3.2.2.)
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