Rockwell Automation 900-TC32 Digital Temperature Controllers, Series B - Manual (Page 140)

Publication 900-UM007D-EN-E - January 2011
4-4 Parameter Adjustments & Application Considerations
Preparations
1. Set to the temperature range to match the input specifications of the
non-contact temperature sensor (refer to Table 3.C, — List of Global
Temperature (GT) Input Types
). Note: The non-contact infrared sensor is
supported only in thermocouple Input Type Bulletin 900-TCX
controllers. Refer to Table 1.B
through Table 1.F.)
2. Prepare a thermometer (B) capable of measuring the temperature of the
control target (C) as shown in Figure 4.10 so that 1-point shift or
2-point shift can be carried out.
Figure 4.10 — Configuration when Compensating a Non-Contact Infrared
Temperature Sensor
Using the 1-Point Shift Method
Figure 4.11
1. In the temperature control configuration shown in Figure 4.10, bring
the set point to near the value at which the temperature of the control
target is to be controlled. Assume that the control target temperature
(C) and the control target temperature (B) match.
2. Check the control target temperature (B) and the controller readout (A).
Take the value from the following equation as the Input Shift Value, and
configure the same numerical value to
cns
.
Control target temperature (B) – Controller readout (A) =
Input shift value
Figure 4.12 shows the effect of 1-point temperature input shift.
(A) 900-TC8, 900-TC16, or 900-TC32
Temperature Controller
(C) Control Target
(B) Thermometer
Infrared Non-Contact
Temperature Sensor