Calibration Intervals (Int 3, Int 4) - wtw pH/Oxi 340i Operating Manual

pH/Oxi 340i
Setting the calibration
interval
4.5

Calibration intervals (Int 3, Int 4)

For each measured variable, a time interval is stored. When it has ex-
pired, you will be reminded to calibrate. After a calibration interval has
expired, the probe symbol of the relevant measured variable flashes. It
is still possible to measure. By calibrating the relevant probe, the func-
tion is reset and the interval starts anew.
The following calibration intervals are set in the factory:
Measured Designation
parameter
pH/ORP Int 3
Dissolved oxy- Int 4
gen
You can change each of these intervals (1 ... 999 days):
1 Switch off the measuring instrument.
2 Press the <M> key and hold it down.
3 Press the <ON/OFF> key.
The display test appears briefly on the display. After this, the
measuring instrument automatically switches over to configu-
ration.
4 Press the <RUN/ENTER> key repeatedly until Int 3 or Int 4 and
the required measured variable pH or O
TDS pH O
S
n t 3
1
Time Baud
d 1 8
Day.Month No.
Year Ident
Tref25 Tref20 AutoCal DIN
LoBat nLF
Lin Cal AutoCal TEC
5 Set the required interval (in days) until the next calibration with
< > < >.
6 Confirm with <RUN/ENTER>.
7 Switch to the measuring mode with <M>.
Default setting
7 days (d 7)
14 days (d 14)
Sal
mV/pH
%
mg/l
m S/
cm
mbar M cm
1/ cm Sal
7
°
C
/
% K
TP
° F
Auto Store
ARng
AR RCL
Operation
appears. Example:
2
41