Service manual
MDS E-SCAN MPR E-SCAN OPERATION/CALIBRATION
20
Min. Purge Temperature: This value determines the point below which a steam purge will
not be allowed.
Selecting the “Meas.” option from the calibration menu results in the following display:
The calibration measurement
table is created when you place
actual solution samples to be
measured on the sensing head and
then save the desired
measurement reading for that
sample along with the current
measurement voltage. This table
is graphically equivalent to
approximating a measurement
curve with a series of straight
lines.
Use the RIGHT ARROW button
on the Front Panel to edit the
sample value, and ENTER to
capture the measurement voltage.
To give the operator more flexibility, the voltages can also be edited by using the LEFT
ARROW button. Following calibration samples, a table end should be created using the RIGHT
ARROW button to select the sample and the +/ - button to end the table. After creating the table
end, select the ENTER button to permanently save calibration.
Example: what is displayed while
calibrating Sample #1 shown:
At this point, sample #1 should be
on the sensing head, and a sample
value should be entered. When
the ENTER button is selected, the
measurement voltage displayed at
the bottom is put in the table as
the measurement voltage for the
current sample. This
measurement voltage is a raw
voltage without analog 0 or
temperature compensation
adjustment.
Calibration Measurement Screen
Calibration Sample Example Screen