Thermocouple Connections - 57
Thermocouple Connections
With thermocouples, connections and reference junction settings are
crucial for getting accurate results. Reference Junction Modes available:
Internal is the simplest. Use suitable thermocouple, extension or
compensation wires to connect to MC6-T. MC6-T takes care of the
Reference Junction compensation. See Figure 44: Internal Reference
Junction. You may optionally also use the TC2 terminals.
Figure 44: Internal Reference Junction
External R1 and External R2 use an external RTD sensor measuring
the Reference Junction temperature, connected to selected terminal. The
Figure 45: An RTD connected to R1 terminals measures the Reference
Junction temperature presents the connections to TC1 and R1 terminals.
Figure 45: An RTD connected to R1 terminals measures the
Reference Junction temperature
Fixed (0 °C) and Manual are used when a compensation box, a
temperature controller or similar method is utilized for fixing the Reference
Junction temperature. Manual allows you to enter any temperature.
Fixed (0 °C) is a quick way of "entering" zero degrees centigrade.
Connection picture to TC1 - see Figure 46: Fixed/Manual Reference
Junction temperature.
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