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APPENDIX
APPENDIX
Appendix 1 Usual Operation Limits and Superheated Operating Limits
Appendix 2 Allowable Temperature Differences
Component
symbol
B
R
S
K
E
J
T
Downloaded from
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Component
Old symbol
symbol
(reference)
⎯
B
R
⎯
S
K
CA
E
CRC
J
IC
T
CC
Note : The usual operation limit refers to the temperature limit of the air in which the module can be
continuously used.
The superheated operating limit refers to the limit of temperature at which the module can be
used in a short period of time in unavoidable cases.
Old symbol
Measured temperature
(reference)
⎯
600 °C or more but less than 1700 °C
⎯
0 °C or more but less than 1600 °C
0 °C or more but less than 1000 °C
CA
0 °C or more but less than 1200 °C
-200 °C or more but less than 0 °C
0 °C or more but less than 800 °C
CRC
0 °C or more but less than 800 °C
-200 °C or more but less than 0 °C
IC
0 °C or more but less than 750 °C
0 °C or more but less than 750 °C
0 °C or more but less than350 °C
CC
0 °C or more but less than350 °C
-200 °C or more but less than 0 °C
Note : The allowable difference refers to the maximum allowable limit for the difference between the
resultant temperature of a conversion from thermal electromotive force using a standard
thermal electromotive force chart, and the temperature at temperature detector contact.
The greater value of °C or % will take effect for the allowable difference.
search engine
Wire diameter
Usual operation limit
mm
0.50
0.50
0.65
1.00
1.60
2.30
3.20
0.65
1.00
1.60
2.30
3.20
0.65
1.00
1.60
2.30
3.20
0.32
0.65
1.00
1.60
Class
0.5 class
±4 °C, or ±0.5 % of the measured temperature
±1.5 °C, or ±0.25 % of the measured temperature
0.25 class
0.4 class
±1.5 °C, or ±0.4 % of the measured temperature
0.75 class
±2.5 °C, or ±0.75 % of the measured temperature
1.5 class
±2.5 °C, or ±1.5 % of the measured temperature
0.4 class
±1.5 °C, or ±0.4 % of the measured temperature
0.75 class
±2.5 °C, or ±0.75 % of the measured temperature
1.5 class
±2.5 °C, or ±1.5 % of the measured temperature
0.4 class
±1.5 °C, or ±0.4 % of the measured temperature
0.75 class
±2.5 °C, or ±0.75 % of the measured temperature
0.4 class
±0.5 °C, or ±0.4 % of the measured temperature
0.75 class
±1 °C, or ±0.75 % of the measured temperature
1.5 class
±1 °C, or ±1.5 % of the measured temperature
A-1
MELSEC-A
JIS C1602-1995
Superheated operating
°C
limit °C
1500
1700
1600
1400
650
850
750
950
850
1050
900
1100
1000
1200
450
500
500
550
550
600
600
750
700
800
400
500
450
550
500
600
550
750
600
750
200
250
200
250
250
300
300
350
JIS C1602-1995
Allowable difference
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