Safety
pH/Oxi 340i
4
Safety
Safety
instructions
The individual chapters of this operating manual use the following safety in-
struction to indicate various types of danger:
Warning
indicates instructions that must be followed precisely in order to avoid the
possibility of slight injuries or damage to the instrument or the environment.
Display and jack field
Display
Jack field
Warning
Only connect sensors to the measuring instrument that cannot return any
voltages or currents that are not allowed (> SELV and > current circuit with
current limiting). Almost all sensors - in particular WTW sensors - fulfill these
conditions.
Sal
°
F
1/cm
/
K
%
TDS
S/
m
cm
cm
M
Lin
Tref25 Tref20
nLF
Time
Baud
Day.Month No.
Ident
Year
8
8 .
8
8 8
8
O
°
Sal
C
%
mg/l
LoBat
TP
1
mbar
S
UpH
RCL
Auto Store
ARng
AR
Cal
mV/pH
AutoCal DIN
AutoCal TEC
Status display indicator
Measured value display
Function and
Temperature display
Sensor symbol
1 Oxygen sensor
4 Plug-in power supply unit
2 pH electrode
5 RS232 serial interface
3 pH temperature sensor
5
1
2
3
4
