Input Calibration
86 UDC2300 Controller Product Manual 12/00
Check the Jumper for Input 1
Before you calibrate Input #1, check the internal jumper for Input 1 to make sure it is set
for the correct input type. The jumper is located at position S101 on the printed wiring
board. Figure 2-2 shows the location of the jumper and position selections.
Check the Jumper for Input 2
Before you calibrate Input #2, check the internal jumper for Input 2 to make sure it is set
for the correct input type. The jumper is located at position S201 on the printed wiring
board. Figure 2-2 shows the location of the jumper and position selections.
Equipment Needed
Table 8-2 lists the equipment you will need to calibrate the specific types of inputs that
are listed in the table. You will need a screwdriver to connect these devices to your
controller.
Table 8-2  Equipment Needed
Type of Input Equipment Needed
Thermocouple
Inputs (Ice Bath)
•  A calibrating device with ± 0.02 % accuracy for use as a signal
source such as a millivolt source.
•  Thermocouple extension wire that corresponds with the type of
thermocouple that will be used with the controller input.
•  Two insulated copper leads for connecting the thermocouple
extension wire from the ice baths to the mV source.
•  Two containers of crushed ice.
Thermocouple
Inputs (T/C Source)
•  A calibrating device with ± 0.02 % accuracy for use as a signal
source such as a millivolt source.
•  Thermocouple extension wire that corresponds with the type of
thermocouple that will be used with controller input.
RTD (Resistance
Thermometer
Device)
•  A decade box, with ± 0.02 % accuracy, capable of providing stepped
resistance values over a minimum range of 0 to 1400 ohms with a
resolution of 0.1 ohm.
•  Three insulated copper leads of equal length for connecting the
decade box to the controller.
Milliampere,
Millivolt, Volts, and
Radiamatic
•  A calibrating device with ± 0.02 % accuracy for use as a signal
source.
•  Two insulated copper leads for connecting the calibrator to the
controller.
•  Place current source at zero before switching ON.
•  Do not switch current sources OFF/ON while connected to the
UDC2300 input.
ATTENTION: For radiamatic inputs only, set emissivity value to 1.0.
See Subsection 4.9– Configuration Set Up prompt INPUT1, function
prompt EMISS.