Hach AISE sc, Addendum To The Operator Manual

Page: 10 / 152

10 English
Operation
Proceed as follows to change the sensor code:
1. Select
SENSOR MENU > AN-ISE SC
or
AISE SC
or
NISE SC >
CALIBRATION > MORE CORRECTIONS> SENSOR CODE >
ENTER
2. Enter the sensor code.
3. Press
ENTER
to confirm and activate the sensor code. The day
meter for the cartridge is set to zero.
All old calibration data are now overwritten with the new calibration
data from the sensor code. The sensor code data is checked by the
system. If an error is indicated, check the sensor code and, if
necessary, enter the sensor code again.
4.3.2 Matrix correction via LINK2SC
The LINK2SC procedure offers a secure method of data exchange
between process probes and LINK2SC-compatible photometers
using an SD memory card or via a local area network (LAN). Two
different options are available:
a. The pure laboratory control measurement
b. A matrix correction that involves the measurement data
generated in the laboratory being used to correct the probe
During a pure control measurement, the measurement data is
transferred from the probe to the photometer where it is then
archived together with the photometric reference data that has
been recorded.
During a matrix correction, the reference data generated in the
laboratory is transferred to the probe to be used for the correction.
The matrix correction process requires operating steps to be
completed on the sc controller and on a LINK2SC-compatible
photometer.
Refer to the LINK2SC user manual for a detailed description of the
LINK2SC procedure.
When using the LINK2SC software, sections 4.3.3 and 4.3.4 are
not relevant.
4.3.3 Matrix correction – manual
ISE probes offer different options (refer to Table 1 ) for correcting
the sensor value with laboratory values (as a reference value).
The laboratory value of the water sample is entered as nitrate
nitrogen (NO
3
–N) and/or as ammoniacal nitrogen (NH
4
–N). This
laboratory value replaces the prior value measured by the sensor.