Input Calibration 
3/07  UDC3500 Universal Digital Controller Product Manual  285 
5.4.4  Radiamatic, Millivolts, Volts, Carbon, Oxygen or Thermocouple Differential 
Inputs 
Refer to Figure 5-5 and wire the controller according to the procedure given in Table 5-6.  
Table 5-6  Set Up Wiring Procedure for Radiamatic, Millivolts, Volts, 
Carbon, Oxygen or Thermocouple Differential Inputs (Except 0-10 Volts and 
–1 to 1 Volts) 
Step  Action 
1 
Connect the copper leads from the calibrator to the Input #1 terminals as shown in 
Figure 5-5. 
2 
Place voltage source at zero before switching on. 
3 
Following calibration, turn off the voltage source prior to disconnecting it from the 
instrument. 
 
ATTENTION 
For Radiamatic inputs only, set Emissivity value to 1.0. 
See: 
   Subsection 3.15 – Configuration Set Up prompt INPUT 1, function prompt EMISSIV 1 
   Subsection 3.16 – Configuration Set Up prompt INPUT 2, function prompt EMISSIV 2 
   Subsection 3.17 – Configuration Set Up prompt INPUT 3, function prompt EMISSIV 3 
 
 
Millivolt or  
Volt Source 
+
30-
29+
31R
32+
33-
34R
35+
36-
28R
Input 1 
Input 2 
Input 3 
 
Figure 5-5  Wiring Connections for Radiamatic, Millivolts, Volts, Carbon, 
Oxygen or Thermocouple Differential Inputs (Except 0-10 Volts and –1 to 1 
Volts)