Setra System Model 270 - Manual (Page 2)

ZERO OUTPUT
Output can be adjusted to zero by potentiometer as shown in diagram. Unit factory adjusted to
0.00 VDC output (
±
5mV).
SPAN
Can be adjusted by potentiometer as shown in diagram. Unit factory adjusted to 5.00 VDC full
scale output (
±
5mV).
LINEARITY - DO NOT TOUCH
Factory adjusted for best linearity.
Circuit Board 1 Circuit Board 2
NOTE: When circuit cover is removed, a zero shift can be noticed. The zero will return by the same
amount when the cover is replaced. This displacement of the output should be taken into account when
making adjustments or during recalibration
*Adjustments: Due to the high accuracy of this transducer, adjustments to zero and span should only be
made with the use of primary pressure standards of known accuracy higher than that of the Model 270.