YSI IQ S ENSOR N ET NitraVis 70x IQ TS User Manual
Page 28
Measuring / Operation
NitraVis 70x IQ TS
4 - 6
ba75950e02
11/2012
Performing a user
calibration
Proceed as follows if you want to perform a user calibration:
In the
Settings of sensors and diff. sensors
menu, set the
Signal
smoothing
setting to
Off
.
Subsequently, leave the menu with
Save and quit
.
How to navigate to the
Settings of sensors and diff. sensors
menu and
the operation of the menu is described in section 3.4.3.
At least one value pair and a maximum of two value pairs can be
entered for a valid calibration. The values must be in ascending order.
If they are not in ascending order, a calibration error will occur.
The entry of calibration values outside the measuring range leads to a
calibration error.
1.
Bring the sensor into the measuring position.
2.
Switch to the measured value display with
3.
Wait for a measurement, read the raw value (without dimen-
sion) and note it down. In the case of fluctuating values,
observe several measuring cycles and average the individual
raw values.
4.
Take a sample at the same time as the measurement and as
close to the UV-VIS sensor as possible.
5.
Determine the reference value and note it down as a value pair
together with the raw value.
6.
For a two-point calibration:
Determine the second value pair (step 4 to step 6).
7.
Sort the values pairs in ascending order.
8.
In the
Settings of sensors and diff. sensors
menu, enter the
value pair or pairs (see the following table).