10
FIGURE 2-5
2.3 Sensor Placement (Thermocouple or RTD)
Two-wire RTDs should be used only with lead lengths less than 10 feet.
If the temperature probe is to be subjected to corrosive or abrasive conditions, it should
be protected by the appropriate thermowell. The probe should be positioned to reflect
true process temperature:
• In liquid media - the most agitated area
• In air - the best circulated area
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