Xylem IQ SensorNet FDO 70x IQ (SW) User Manual

Page 17

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FDO

®

70x IQ (SW)

Commissioning

3 - 5

ba76014e01

02/2012

Carrying out settings

Using

s

, switch from the measured value display to the main menu of

the settings. Then navigate to the setting menu (setting table) of the
sensor. The exact procedure is given in the relevant IQ S

ENSOR

N

ET

system operating manual.

Temp. adjustment

-1.5 K ... +1.5 K

The temperature compensation enables the
temperature display to be balanced (shifting
of the zero point by ±1.5K).
Notes:
 Due to the thermal capacity of the sensor,

it is necessary to place it in a container
with at least 2 liters of water.

 Leave the sensor in this container for at

least 15 minutes while stirring
occasionally until the balancing can be
performed.
With temperature differences between the
water and sensor > 10 °C, leave the
sensor for at least 1 hour in this container
while stirring occasionally until the
balancing can be performed.

Salinity

On
Off

Determines whether the entered salinity
should be taken into account.

Salinity input

2.0 ... 70.0

The entry of the salinity enables a salt con-
tent correction that compensates for the
effect of salt contents > 0.1 % on the oxygen
measurement.
The salt content correction is recommended
for measurements in salt-contaminated
wastewater (salinity

≥ 2.0 corresponding to a

conductivity of

≥ 3.4 mS/cm at a reference

temperature

TREF

= 20 °C).

Sensor cap data

Do not download
Transmit to log

book

Generates a log book message with all data
stored in the sensor cap when the settings
are quit with Save and quit (see section 1.2).
When opening the menu again the setting is
reset to Do not download.

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 saving the new settings.

Setting

Selection/values

Explanation

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