Safety
pH/Ion 340i
4
Safety
Safety
instructions
The individual chapter 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.
Status display indicator
Measured value display
Function and
Temperature display
Sensor symbol
%
°F
% ppm
mol/L
RCL
8
8 .
8
8
88
8
mV/pH
°C
LoBat
AutoCal DIN
CalError
ARng
AR
AutoCal TEC
TP
1
UpH
Time
Baud
Day.Month No.
Ident
Year
ISE
S
mg/l
TempError
Auto Store
ConCal
1 pH electrode or ISE single-rod
measuring electrode/electrode
4 pH temperature sensor
2 Reference electrode
5 Serial Interface RS232 / analog
output (recorder)
3 Plug-in power supply unit
Ref
5
1
2
3
4
