4 measuring the total dissolved solids (tds), Measuring the total dissolved solids (tds) – Xylem Lab 970 User Manual

Page 24

background image

Operation

Lab 970

24

ba75558e03

11/2009

4.3.4 Measuring the total dissolved solids (TDS)

1

Perform the preparatory activities according to page 21.

2

Immerse the conductivity measuring cell in the test sample.

3

Using , scroll as necessary until the measured
parameter TDS is displayed.

4

Using <

▲><▼>, set the TDS factor (0.40 ... 1.00).

5

Wait for a stable measured value.

6

Measurement with stability control (see page 25).

0

0

1

3

5

3

TDS

mg/l

Tref25

nLF

7

8

0

3

1

3

TDS

mg/l

Tref25

nLF