Thermocouple Measurement/Simulation, Connections and Troubleshooting
MC4 User Guide 115
Manually Entered:
Usable when:
• The Reference Junction temperature is fixed to a
temperature that differs from 0°C.
• The Reference Junction temperature is controlled and the
controller's set point is not 0°C. Note: this method is of use
only if the accuracy of the controller is better than MC4's own
Reference Junction.
• A compensation box is used and the Reference Junction
temperature setting is other than 0°C.
• There is no Reference Junction compensation in the
measuring/simulation circuit, but you want to manually enter
another Reference Junction temperature than 0°C.
Connection when measuring/simulating thermovoltages using a
temperature controller and either of the following Reference
Junction compensation methods:
"
Manually Entered
" or "
None (0 °C)
":
M e a s u r e
M a x 6 0 V , 3 0 V , 1 0 0 m A
s e n s e
R , R T D R m e a s
V , I
,
V , I ,
T e m p e r a t u r e / G e n e r a t e
T / C
m V
T / C s e n s o r
o r a
T / C s i g n a l r e c e i v e r
T e m p e r a t u r e
C o n t r o l l e r
T
r e f
T / C m a t e r i a l s
C o p p e r
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