User Manual
Table Of Contents
- 1 Overview
- 2 Safety
- 3 Commissioning
- 4 Operation
- 4.1 Switching on the meter
- 4.2 Login with a user name
- 4.3 General operating principles
- 4.4 Sensor-independent settings
- 4.5 Sensor info
- 4.6 Channel display
- 4.7 pH value
- 4.7.1 General information
- 4.7.2 Measuring the pH value
- 4.7.3 Settings for pH measurements
- 4.7.4 pH calibration
- 4.7.5 Calibration interval
- 4.7.6 Carrying out an automatic calibration (AutoCal)
- 4.7.7 Carrying out a manual calibration (ConCal)
- 4.7.8 Displaying calibration records
- 4.7.9 Continuous measurement control (CMC function)
- 4.7.10 QSC function (sensor quality control)
- 4.8 ORP voltage
- 4.9 Dissolved oxygen
- 4.10 Conductivity
- 4.11 Data storage
- 4.12 Transmitting data (USB interfaces)
- 4.12.1 Outputting current measurement data
- 4.12.2 Transmitting data (to a PC)
- 4.12.3 Connecting the PC / USB-B interface (USB Device)
- 4.12.4 Options for data transmission to a PC (USB-B interface)
- 4.12.5 Connecting the USB memory device / USB-A interface (USB Host)
- 4.12.6 Data transmission to a USB memory device (USB-A interface)
- 4.13 Reset
- 5 Maintenance, cleaning, disposal
- 6 What to do if...
- 7 Technical data
- 8 Lists
- 9 Appendix: Firmware update
Multi 3430 Operation
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ba75865e11 02/2011
4.10.3 Temperature compensation
The calculation of the temperature compensation is based on the pre-
set reference temperature, 20 °C or 25 °C. It appears on the display as
Tr20 or Tr25.
You can select one of the following temperature compensation meth-
ods:
z Nonlinear temperature compensation (nLF) according to EN 27
888
z Linear temperature compensation (lin) with adjustable coeffi-
cients of 0.000 ... 3.000 %
/K
z No temperature compensation (off)
Note
The reference temperature and temperature compensation are set in
the menu for the parameter, conductivity (see section 4.10.4).
Application tips Select the following temperature compensations given in the table
according to the respective test sample:
Test sample Temperature compensation Display
indicator
Natural water
(ground water, surface
water, drinking water)
nLF
according to EN 27 888
nLF
Ultrapure water nLF
according to EN 27 888
nLF
Other aqueous solu-
tions
lin Set linear
temperature coefficient
0.001 ... 3.000 %/K
lin
Salinity (seawater) Automatic nLF according to
IOT
Sal, nLF