Xylem COND3110 HANDHELD CONDUCTIVITY METERS Manual de usuario descargar pdf (Pagina 16)

Operation Cond 3110

ba75792e02 11/2008

4.2 Measuring

Preparatory activities Perform the following preparatory activities when you want to measure:

Stability control

AutoRead

During the measuring procedure, the stability control function is

automatically activated. The stability control function (AR) checks the

stability of the measured conductivity signal and the stability of the

measured temperature signal. The stability has a considerable effect

on the reproducibility of the measured value.

For identical measurement conditions, the following applies:

Temperature sensor The temperature measurement is absolutely essential for a

reproducible conductivity measurement. If a temperature sensor is

integrated in the sensor, it is indicated on the display by TP.

Note

The conductivity meter automatically recognizes the type of the

temperature sensor used. Therefore, you can connect measuring cells

with an NTC30 or Pt1000.

1 Connect a measuring cell to the meter.

2 Adjust the temperature of the test solutions and measure the

current temperature if the measurement is made without a

temperature sensor.

3 Calibrate or check the meter with the measuring cell.

4 Select the measured parameter with <M>.

Measured

parameter

Reproducibility Response time

Conductivity better than 0.5% of measured

value

> 10 seconds

Temperature < 0.3 °C of temperature value > 15 seconds

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 40 41

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Xylem COND3110 HANDHELD CONDUCTIVITY METERS Manual de usuario Pagina 16