Xylem handylab pH LF 12 - Manual (Page 22)

Operation handylab pH/LF 12
22 ba75370e03 11/2009
4.2.3 Measuring the ORP voltage
In conjunction with an ORP electrode, e.g. BlueLine 31Rx, the measuring in-
strument can measure the ORP voltage (mV) of a solution.
Note
ORP electrodes are not calibrated. However, you can check ORP electrodes
using a test solution.
1 Perform the preparatory activities according to section 4.2.1.
2 Submerse the ORP electrode in the sample.
3 Press the <
▲> <▼> keys until the U status display appears.
The ORP voltage (mV) of the test sample appears on the dis-
play.
4 Wait for a stable measured value.
/pH
Tref20
Cal
8
TDS
S 8 1
pH Sal O
% mg/l
1/cmSal
AutoCal DIN
Lin
Tref25
nLF AutoCal TEC RCL
Auto Store
LoBat ARng AR
Time Baud
Day.Month No.
Ident Year
mbar cm M
° F
/ K %
S/ m
cm
8 4 2
2 3
° C
TP
U
mV