Xylem YSI ProDSS, User Manual

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34
Calibration
Calibration Cup Installation
1. Ensure the calibration cup gasket is correctly seated ( Figure 43 ). Loosely install the retaining nut on the cup.
2.
Slide the calibration cup over the sensors and sensor guard and tighten the retaining nut.
NOTE:
When the 4 port calibration cup is empty (i.e. no sensor guard or sensors), it takes ~170 mL of solution to
fill the calibration cup to line 1 while it takes ~225 mL to fill the cup to line 2.
Figure 43 Calibration cup standard volume (4 port cable)
1 Fill line one (used for Turbidity, pH,
ORP, PC, PE, and chlorophyll
calibration solutions)
2 Fill line two (used for conductivity
calibration solution)
3 Gasket
4 Retaining nut
5 Calibration cup installed
Calibration Screen Layout
The calibration screen has the same basic layout for each parameter
(
Figure 44 ).
Calibration value : The value the sensor will be calibrated to. The
Yellow Line on the graph corresponds to this value.
Accept Calibration : Calibrates the sensor to the calibration value.
Finish Calibration : Only available with multi-point calibrations (i.e. pH,
ISE, turbidity, PC, PE, and chlorophyll). Finishes the calibration by applying
previously accepted points.
Press ESC to Abort : Press the ESC key to leave the calibration. The sensor
will not be calibrated to any points. The last successful calibration will be
used.
Last Calibrated : Date and time of the last successful sensor calibration.
Actual Readings : The current measurement value on the Run screen.
The White Line on the graph corresponds to this value. Observe the
White Line to ensure the measurement is stable before choosing Accept
Calibration .
Post Cal Value : The same as the calibration value. This will be the
measurement value in the current solution after the calibration is finished.
Figure 44
Layout of calibration screen
1
2
3
4
5