Xylem handylab pH LF 12 - Manual (Page 46)

Operation handylab pH/LF 12
46 ba75370e03 11/2009
4.5 Calibration intervals (Int 3, Int 5)
For each measured variable, a time interval is stored. When it has expired,
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 function is reset and the in-
terval starts anew.
The following calibration intervals are set in the factory:
Setting the
calibration interval
You can change each of these intervals (1 ... 999 days):
Measured
parameter Designation Default setting
pH/ORP Int 3 7 days (d 7)
Conductivity Int 5 180 days (d 180)
1 Switch off the measuring instrument.
2 Press the key and hold it down.
3 Press the key.
The display test appears briefly on the display. After this, the
measuring instrument automatically switches over to configu-
ration.
4 Press the key repeatedly until Int 3 or Int 5 and
the required measured variable pH or
appears. Example:
5 Set the required interval (in days) until the next calibration with
<
▲> <▼>.
6 Confirm with .
7 Switch to the measuring mode with .
O
8 1
° C
TP
ARng
mg/l
LoBat
Baud
Day.Month No.
Ident Year
Sal
%
mbar
S
RCL AR
Store Auto
° F
1/cm
/ K %
TDS Sal
mV/pH
S/ m
cm
cm M
Lin
Tref25 Tref20
nLF
AutoCal DIN
AutoCal TEC
7
t 3 n 1
d Time
Cal
pH