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DR4300 Circular Chart Recorder
DR4300 Circular Chart Recorder Product Manual 12/03
32
Be sure that thermocouple
extension wire matches
thermocouple type
•
•
Keep resistance of all wires equal
Use 18 gauge copper wire for lengths up
to 150 feet.
For two wire RTD jumper terminal
negative (-) to R.
•
•
Thermocouple
RTD
mA, mV or Volt
mA, mV or
Volt source
TB2
TB2
TB2
+
–
RTD
+
R
–
+
R
T/C
–
R
24086
Main PCA
Pen 2
Main PCA
Pen 1
• Many 3-wire RTDs use color coded
wires. One wire is a different color than
the other two. The single wire is usually
the positive connection
J
K
T
R
S
E
B
+ White
-
Red
-
Red
-
Red
-
Red
-
Red
-
Red
-
Red
+ Yellow
+ Blue
+ Black
+ Black
+ Purple
+ Gray
7
TB2
TB1
7
TB2
TB1
N
-
Red
+ Orange
•
100 ohm maximum lead resistance
Standard used as color
reference ANSI MC96.1
Figure 2-11 Analog Input Wiring