Xylem YSI VARiON Plus 700 IQ H, Operating Manual, Page: 23 / 62

VARiON
® Plus
700 IQ H Commissioning
23
ba76207e02 12/2020
3.4.3 Setting table VARiON N (nitrate sensor)
Temp. adjustment
(only with Measuring
mode : NH4-N or NH4 )
-1.5 °C ... +1.5 °C The temperature compensation function
enables the temperature sensor to be
balanced against a reference temperature
measurement (displacement of the zero
point by ±1.5 °C).
Notes:

Due to the thermal capacity of the sen-
sor, it is necessary to place it in a con-
tainer with at least 2 liters of water.

Leave the sensor in this container for at
least 15 minutes while stirring occa-
sionally, then carry out the adjustment.
If the temperature difference of the
water and sensor is > 10°C, leave the
sensor in the container for at least one
hour while stirring occasionally.
Conc. offset
-1.0 mg/l ... +1.0 mg/l Constant value that is added to the mea-
sured value.
Save and quit
The system confirms the saving of the set-
tings and the display switches to the next
higher level.
Quit
The display switches to the next higher
level without storing the new settings.
Menu item Selection/Values Explanations
Menu item Selection/Values Explanations
Measuring mode

NO3-N

NO3

mV
Citation form of the mass concentration or
voltage of the electrode.
Measuring range
( Measuring mode : NO3-
N )

AutoRange

0.1 ... 100.0 mg/l

1 ... 1000 mg/l
2 measuring ranges can be selected.
With
AutoRange , the instrument
automatically switches to the suitable
measuring range.
Measuring range
( Measuring mode : NO3 )

AutoRange

0.5 ... 450.0 mg/l

5 ... 4500 mg/l
2 measuring ranges can be selected.
With
AutoRange , the instrument
automatically switches to the suitable
measuring range.