wtw AmmoLyt 700 IQ, Руководство по эксплуатации

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Calibration and measuring AmmoLyt
®
700 IQ
4 - 8 ba75353e05 03/2006
4.1.5 Calibration procedure, 1 point standard (1)
The 1 point standard (1) 1-point calibration is carried out using one
standard solution.
Note
Determine the potassium content of the sample (see section 4.2.2).
Activate the
Potassium compens. function and adjust the potassium
content (see section 3.4).
The potassium content of the sample does not effect calibration but the
measurement following.
Operating steps during
calibration
Display Explanation
Cal.: 1 POINT STANDARD (1)
Have standard ready for calibra-
tion You can use any standard solu-
tion for this.
The ammonium value should be
as close to the value expected for
the test sample as possible.
Confirm with
g
.
Select standard concentration
(1 / 10 / 100) mg/l NH4-N
If necessary select a standard
with
d
.
Confirm with
g
.
* Rinse electrode Follow the instructions on the dis-
play. Confirm with
g
.
* Immerse electrode in standard.
* Wait for a stable measured
value. Confirm with
g
.
As soon as a stable measured
value is reached, the next display
appears.
Calibration successful
Conc. (NH4-N)
x mg/l
Slope y mV*
Drift voltage z mV
End of 1 POINT STAND. (1) cal.
The values for Conc. (NH4-N) ,
Slope and Drift voltage are dis-
played. The slope is taken over
from the last calibration that
determined the slope.
The calibration is complete. Con-
firm with
g
.
The display returns to the measu-
red value display.