Matx2 Cl- Correction - Hach NO3D sc User Manual

Operation

4.6.3.4 MATX2 CL- correction

CALIBRATE
CAL. CONFIG.
CONC MEAS 1
DATE
SET CL- CONC
SET NO3–N CONC
CONC MEAS 2
DATE
SET CL- CONC
SET NO3–N CONC
26
After determining the laboratory reference value, proceed as
follows:
7. Select
SENSOR SETUP>NO3D SC>CALIBRATE>
.
SET NO3–N CONC
8. Enter the laboratory value (reference value) for NO
press to confirm.
ENTER
9. Select
MEAS CONC 2
8 for the second value after a concentration change of at least
half a decade.
10. By confirming the second laboratory value, the Matrix2
correction is activated.
Select to calibrate the nitrate and chloride sensor
MATX2 CL-
simultaneously at two different measuring points.
1. Select
SENSOR SETUP>NO3D SC>CALIBRATE> CAL CONFIG
2. Select in the selection window and press
MATX2 CL-
3. Select
CONC MEAS 1
are stable (drift should be <0.03 mg/L).
4. Press to confirm. The value for nitrate and chloride are
ENTER
saved.
5. Immediately after measuring, take a water sample for
laboratory analysis from as close to the sensor as possible.
6. Analyze the sample immediately after taking the sample as its
nitrate content can change quickly.
After determining the laboratory reference value, proceed as
follows:
1. Select
SENSOR SETUP>NO3D SC>CALIBRATE>SET NO3-N
.
CONC
2. Enter the laboratory value (reference value) for NO
press to confirm.
ENTER
3. Select
MEAS CONC 2
for the second value after a concentration change of at
CONC 1
least half a decade.
4. By confirming the second laboratory value, the Matrix2
correction is activated.
and repeat the sequence from Point 4 to
and wait until the NO –N and Cl
3
and repeat the sequence from
–N and
3
.
.
ENTER
-
values
-
-N and Cl
3
MEAS