Thermcraft XST-3-0-36-3V - Manual (Page 125)

Installation and Operation Handbook User Calibration
2408 and 2404 Controller 7-1
Chapter 7 USER CALIBRATION
This chapter has five topics:
• WHAT IS THE PURPOSE OF USER CALIBRATION?
• USER
CALIBRATION ENABLE
• OFFSET CALIBRATION
• TWO POINT CALIBRATION
• CALIBRATION POINTS AND CALIBRATION OFFSETS
To understand how to select and change parameters in this chapter you will need to have read
Chapter 2 - Operation, Chapter 3- Access Levels and Chapter 6 - Configuration.
WHAT IS THE PURPOSE OF USER CALIBRATION?
The basic calibration of the controller is highly stable and set for life. User calibration allows
you to offset the ‘permanent’ factory calibration to either:
1. Calibrate the controller to the your reference standards.
2. Match the calibration of the controller to that of a particular transducer or sensor input.
3. Calibrate the controller to suit the characteristics of a particular installation.
4. Remove long term drift in the factory set calibration.
User calibration works by introducing a single point, or two-point, offset onto the factory set
calibration.