YSI IQ SensorNet SensoLyt Sensor 700 IQ (SW) - Manual (Page 19)

SensoLyt
®
700 IQ (SW) Measuring / Operation
4 - 1 ba76006e01 01/2012
4 Measuring / Operation
4.1 Measuring
WARNING
Contact with the sample can lead to danger to the user!
Depending on the type of sample, suitable protective measures
must be taken (protective clothing, protective goggles, etc.).
Note
Calibrate the combination electrode with the sensor and the measuring
system before measuring and at regular intervals (depending on the
application).
Note
Please pay attention to:
 the minimum immersion depth of the sensor (> 40 mm)
 the measuring range of the electrode used (see operating manual of
the electrode).
4.2 Calibration
4.2.1 General information on calibration
Why calibrate? During the operation of a pH electrode, the slope and asymmetry of the
electrode changes with time. The calibration procedure determines the
current slope and asymmetry of the electrode.
When to calibrate? Calibrate before measuring and at regular intervals (depending on the
application).
Calibration procedure The CAL TEC AUTO calibration procedure enables a fully automatic
calibration using buffer solutions. Ordering information on buffer
solutions is given in chapter 6 R
EPLACEMENT PARTS AND ACCESSORIES .
The CAL CON 2P calibration procedure enables conventional two-
point calibration using using 2 different buffer solutions (first buffer
solution pH 7.0 ± 0.5, second buffer solution with any pH value).
The CAL CON 1P calibration procedure enables conventional single-
point calibration with any single buffer solution.
Calibration record /
calibration history
The result of a calibration is stored in the calibration record and
calibration history respectively and can be viewed afterwards (see
respective IQ S
ENSOR N ET system operating manual).