Installation
8 UDC3300 Expanded Model: DC330E User Manual 5/00
Input#1/Input #2
The 250Ω load resistor for 
4-20 mA or the voltage divider 
for 0-10 volts or the 500 ohm 
C/J compensation resistor is 
supplied with the controller 
when the input is specified.  
These items must be installed 
when you wire the controller 
before start-up.  
1
1
2
10
11
L1
22
23
24
Use Thermocouple 
extension wire only
Thermocouple
RTD
mV or Volts 
except 0-10 Volts
Carbon, mV 
or Volt 
source
0-10 Volts 4-20 milliamps
–
+
+
R
–
1
2
3
–
0–10 
Volt 
source
+
100K
100K
Power 
Supply
–+
Xmitter
+
–
250Ω
1
Remove screw and 
install C/J on the "R" terminal, 
connect tang to "–" terminal.
2
22
23
24
+
R
–
22
23
24
+
R
–
22
23
24
+
R
–
1
22
23
24
+
R
–
1
INPUT #2
3
Input #2 is not 
available with 
Position 
Proportional 
Output.
Refer to Table 2-4 for Input 2 Jumper selections.
mV or Volt
source
Refer to Table 2-2 for Input 2 Jumper selections.
25
26
27
Use Thermocouple 
extension wire only
Thermocouple
RTD
Carbon, mV or Volts 
except 0-10 Volts
mV or Volt 
source
0-10 Volts 4-20 milliamps
–
+
+
R
–
1
2
3
–
0–10 
Volt 
source
+
100K
100K
Power 
Supply
–+
Xmitter
+
–
250Ω
1
Remove screw and 
install C/J on the "R" terminal, 
connect tang to "–" terminal.
2
25
26
27
+
R
–
25
26
27
+
R
–
25
26
27
+
R
–
1
25
26
27
+
R
–
1
INPUT #1
3
2
When installing the cold 
junction (Part number 
30757088-001) for a T/C 
input, remove the screws 
from terminals 25 and 27 
(Input 1) or 22 and 24 (Input 
2), and install the assembly 
into place.
3
For Relative Humidity 
option, use Input 1 as the 
wet bulb input and Input 2 
and the dry bulb input. 
For Carbon Potential 
option, use Input 1 as the 
Carbon Probe input.
Carbon,
mV or Volt
source
For Relative Humidity
option, use Input 1 as the
wet bulb input and Input 2
as the dry bulb input.
For Carbon Potential
option, use Input 1 as the
Carbon Probe input.
Figure 2-5   Input #1/#2 Connections