Device description – KROHNE OPTITEMP TCA Ex EN User Manual
Page 18
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DEVICE DESCRIPTION
18
OPTITEMP TRA/TCA
www.krohne.com
10/2010 - 4001087001 - Ex AD OPTITEMP TRA/TCA R02 en
2.7.5 Temperature at process connection for thermometers with connecting cable
Maximum permitted temperature at process connection for thermometers with connecting cable
in [°C]
Maximum permitted temperature at process connection for thermometers with connecting cable
in [°F]
DANGER!
The maximum permitted temperature at the process connection for all industrial thermometers
is T
P
= 400°C / 752ºF. The maximum permitted ambient temperature is T
a
= 70°C / 158°F. Always
refer to the table below!
DANGER!
Always refer to the tables below. Always use heat-resistant connecting cables if the temperature
at the process connection exceeds the values in the tables below.
Thermometer models
T
a
= 40ºC
T
a
= 55ºC
T
a
= 60ºC
T
a
= 65ºC
TxA-S11, threaded thermometer, neck pipe length ≤ 80mm
99
78
71
65
TxA-S12/41, threaded thermometer, neck pipe length ≥ 80mm
330
171
118
65
TxA-P10/40, insert thermometer with thermowell TxA-P10,
neck pipe length ≤ 80mm
157
102
83
65
TxA-P10/40, insert thermometer with thermowell, neck pipe
length ≥ 80mm
303
160
112
65
TxA-P14, insert thermometer without thermowell, neck pipe
length ≤ 80mm
157
102
83
65
TxA-P14, insert thermometer without thermowell, neck pipe
length ≥ 80mm
303
160
112
65
TxA-F13/42, flange thermometer, neck pipe length ≥ 80mm
364
184
124
65
Thermometer models
T
a
= 104ºF
T
a
= 131ºF
T
a
= 140ºF
T
a
= 149ºF
TxA-S11, threaded thermometer, neck pipe length ≤ 80mm
211
173
161
149
TxA-S12/41, threaded thermometer, neck pipe length ≥ 80mm
627
340
244
149
TxA-P10/40, insert thermometer with thermowell TxA-P10,
neck pipe length ≤ 80mm
316
215
182
149
TxA-P10/40, insert thermometer with thermowell, neck pipe
length ≥ 80mm
577
320
234
149
TxA-P14, insert thermometer without thermowell, neck pipe
length ≤ 80mm
316
215
182
149
TxA-P14, insert thermometer without thermowell, neck pipe
length ≥ 80mm
577
320
234
149
TxA-F13/42, flange thermometer, neck pipe length ≥ 80mm
688
364
256
149
.book Page 18 Friday, November 19, 2010 2:23 PM