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YSI IQ S ENSOR N ET NitraVis 70x IQ TS User Manual

Page 31

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NitraVis 70x IQ TS

Measuring / Operation

4 - 9

ba75950e02

11/2012

Flowchart

Fig. 4-3

Overview of

Sensortest/Zero adjustment and user calibration.

After cleaning several times
without significant change of
the sensor assesssment:
Carry out zero adjustment

Main sensor:

Check user calibration

Secondary sensor:

Check user calibration

Sensor OK

Operating error or defective sensor

(Sensor blocked for measurement)

Sensor check

(Standard)

OK Error

-40 ... +40 < -40 or

> +40

Operating error or defective sensor

Zero adjustment

Error

OK

After several zero adjustments:
Reset to:

Factory zero adjustment or
last valid user zero adjustment

After several sensor checks:

Cleaning the sensor

Sensor check

(H2O dist.)

Assessment number

Rinse the measuring chamber
with ultrapure water several times

Clean the measurement windows

Carry out a sensor check (H2O)