Multi 3430
Operation
86
ba75865e19
04/2015
4.11
Turbidity measurement (VisoTurb
®
900-P)
4.11.1 General information
Measured parameters
You can measure the following parameters:
FNU
NTU
Note
The sensor connection and the USB-B (device) interface are galvani-
cally isolated. This facilitates interference-free measurements also in
grounded measuring media.
The sensor connection and the USB-B (device) interface are galvani-
cally isolated. This facilitates interference-free measurements also in
the following cases:
Measurement in grounded test samples
Measurement with several sensors connected to one Multi 3430 in
one test sample
Preparatory activities
Avoid gas bubbles (e.g. air bubbles) in the test sample.
Use suitable vessels for measurement and calibration
(see operating manual of the VisoTurb
®
900-P sensor).
Heed the minimum depth of immersion for the sensor
Perform the following preparatory activities when you want to measure:
1
Connect a turbidity sensor to the measuring instrument.
The turbidity measuring screen is displayed.
The data for the connected IDS turbidity sensor are automati-
cally taken over.
2
Fill the test sample into a lightproof measuring vessel up to a
level of at least 8 cm.
3
When immersing the sensor in the test sample, hold the sensor
at an angle.
4
For measuring, position the sensor upright.
5
Position the sensor in a way that meets the following require-
ments.
Distance to the bottom: 6 cm
Distance to the walls of the vessel: 2 cm
Minimum depth of immersion: 2 cm
Summary of Contents for WTW Multi 3430
Page 1: ...OPERATING MANUAL ba75865e19 04 2015 Multi 3430 DIGITAL METER FOR DIGITAL IDS SENSORS...
Page 6: ...Multi 3430 6 ba75865y19 04 2015 9 2 Firmware Update for IDS Sensors 132...
Page 14: ...Multi 3430 Overview 14 ba75865e19 04 2015...
Page 18: ...Multi 3430 Safety 18 ba75865e19 04 2015...
Page 124: ...Multi 3430 What to do if 124 ba75865e19 04 2015...
Page 133: ......