Optex SC-U1 Operation Manual page 64

Item
2-Point Current values of the two points can be displayed as any adjustment
Adjustment values, respectively.
Performing 2-point adjustment changes the offset and span based
on the adjusted values.
Caution
Initialize Initialize the adjustment value and return it to the factory default
Adjustment value.
Value
Salinity Adjust for correct measurement with a salty solution.
Adjustment
Altitude Adjust for correct measurement and calibration at high altitude.
Adjustment
64
Description
1st point
Display value
after 2-point
adjustment
Adjusted
value
Current display
value
If offset, span, or 2-point adjustment has already been
performed, be sure to initialize the adjustment before
performing the 2-point adjustment.
2nd point
Adjusted value
Current display
value
Measurement value
Refer to
Sensor's
instruction
manual