3 measuring the orp voltage, Measuring the orp voltage – Xylem MULTI 3400 MULTI-PARAMETER METERS User Manual
Page 19
Multi 3400i
Operation
19
Note
The current AutoRead measurement can be terminated at any time
(accepting the current value) by pressing <RUN/ENTER>.
4.2.3
Measuring the ORP voltage
In conjunction with an ORP electrode, e.g. SenTix ORP, the measuring
instrument can measure the ORP voltage (U) of a solution.
Note
ORP electrodes are not calibrated. However, you can check ORP elec-
trodes using a test solution.
3
Start AutoRead with <RUN/ENTER>.
AR flashes until a stable measured value is reached.
This measured value is transmitted to the interface.
4
If necessary, start the next AutoRead measurement with
<RUN/ENTER>.
5
To terminate the AutoRead function: Press the <AR> key.
1
Perform the preparatory activities according to section 4.2.1.
2
Submerse the Redox electrode in the sample.
3
Press the <
▲> <▼> keys until the U status display appears.
The ORP voltage (mV) of the sample appears on the display.
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