2 measuring the d. o. concentration, Measuring the d. o. concentration – Xylem MULTI 3400i pH/Oxi MULTI-PARAMETER METERS User Manual

Page 34

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Operation

pH/ 3400i

34

Temperature sensor

The D. O. probe has an integrated temperature sensor that always
measures the current temperature of the test sample.

4.4.2

Measuring the D. O. concentration

When measuring the concentration of test samples with a salt content
of more than 1 g/l, a salinity correction is required.

Note
How to enter the current salt content is described in
section 4.4.6 E

NTERING

THE

SALT

CONTENT

(

SALINITY

) on page 40.

Switching the salt content correction on or off, see below.

To measure the D. O. concentration with and without salt content cor-
rection, proceed as follows:

Switching on/off salt

content correction

Proceed as follows to switch on the salt content correction:

1

Perform the preparatory activities according to section 4.4.1.

2

Immerse the D. O. probe in the test sample.

3

Press the <

> <> key repeatedly until the D. O. concentra-

tion in mg/l appears on the display.

8

LoBat

Time

Baud

Day.Month No.

Ident

Year

Sal

%

mbar

1

S

RCL

AR

Store

Auto

Cal

°

F

1/cm

/

K

%

TDS

UpH

Sal

mV/pH

S/

m

cm

cm

M

Lin

Tref25 Tref20

nLF

AutoCal DIN

AutoCal TEC

6

7

1

9 2

7

O

°

C

mg/l

ARng

TP

1

Perform the preparatory activities according to section 4.4.1.

2

While pressing the <RUN/ENTER> key, switch on the salt con-
tent correction with <

> . The SAL display indicator appears

on the display. The specified salt content is taken into consid-
eration during the measurement.

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