Rockwell Automation 900-TC32 Digital Temperature Controllers, Series B - Manual (Page 390)

Publication 900-UM007D-EN-E -January 2011
C-12 Calibration
Figure C.20
10. The calibration mode is ended by turning the controller power OFF.
Calibrating Platinum
Resistance Thermometers This example describes how to calibrate the Bulletin 900 Controller when it is
connected to a platinum resistance thermometer.
Figure C.21
When calibrating a platinum resistance thermometer use wires of the same
thickness as those used to connect the Bulletin 900 Controller.
1. Connect the power supply.
2. Connect a precision resistance box (called 6-dial in this manual) to the
platinum resistance thermometer input terminals.
3. Turn the power ON.
4. Move to the Calibration function group. This starts the 30-minute aging
timer. This timer provides an approximate timer for aging. After
30 minutes, the No. 2 display changes to 0. You can advance to the next
step in this procedure even if 0 is not displayed.
str
no
900-TC8
900-TC16
900-TC32
900-TC16
4
3
5
10
9
A
B'
B
6-dial
Input Power Supply
A
B'
B
6-dial
Input Power Supply
900-TC32
1
2
10
11
12
Input Power Supply
6-dial
1
B
B
A
900-TC8
2 18
19
20