II. Calibration resistance RC1
The positions of the RC1 calibration resistor and BP are shown in the schema included in this document.
RC1 RESISTANCE DETERMINATION
•Short-circuit BP, and put a variable resistance (decade box) in place of RC1.
•Manually choose the value of RC1 which simulates approximately 80 % of full scale
•Choose the closest standard resistance value
•Mount RC1 in its place and replace BP with a pushbutton
•Note the values of the analogue outputs and the display when the test pushbutton is pressed,
these two values correspond to the calibration values.
To calibrate the measurement chain once the pushbutton is mounted, see
paragraphs I and II of "USER NOTICE".
Attention !
The RC1 calibration resistance values are measured after having adjusted the gain and
the zero of the measurement chain.
To set up the measurement chain correctly, one should:
1) Load the sensor and determine its sensitivity.
2) Calculate the value of RG1, fine adjust using the front panel potentiometers (zero unloaded
and gain loaded).
3) Determine the calibration resistance value RC1.
4) Note the calibration values obtained with the calibration