BARTON® MODEL 242E
TEMPERATURE/PRESSURE
RECORDER CALIBRATION AND SUPPLY
Calibration of Temperature/Pressure Recorder
• Apply a temperature equal to 50% of the total temperature range.
• Adjust the drive arm and driven arm until they form a 90° angle with the intermediate arm.
• Reduce the temperature to zero or the starting point of the temperature range and fine-tune the zero adjustment with the zero adjusting screw.
• Apply 100% temperature and set the pen to full scale by turning the adjusting screw.
• Check the zero reading and repeat steps 3 through 5 until desired accuracy is achieved.
• Adjust the drive link to make a correction approximately 40 times the error in the direction of the error.
• Reset the pen to the 50% line by slipping the pen at the range arm pivot point.
Calibration of Static Pressure Pen
• Adjust the static range arm and drive arm at the same distance from the back of the case.
• Place the static drive link in the fourth hole from the pen shaft of the range arm.
• Adjust the static pressure linkage to form 90° angles between the drive link and the pivot points of the associated linkage.
• Release the pressure and reset the pen to zero indication using the pen zero adjust screw for fine adjustment (10% or less).
• Repeat zero and 100% adjustment until calibration at these two points is achieved.
• Adjust the drive link to make a correction approximately 40 times the error in the direction of the error.
• Reset the pen to the 50% line by slipping the pen shaft at the range arm pivot point.