Manual

Operation Multi 1970i
20
Note
The current AutoRead measurement can be terminated at any time
(accepting the current value) by pressing <RUN/ENTER>.
4.3.3 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.
2 Activate the AutoRead function with <AUTO READ>.
The current measured value is frozen (hold function).
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
<AUTO READ> key.
1 Perform the preparatory activities according to section 4.3.1.
2 Submerse the ORP electrode in the sample.
3 Press the <▲> <▼> key until the U status display appears. The
ORP voltage (mV) of the test sample appears on the display.
4 Wait for a stable measured value.
%
TEC
Store
Oxi Cal
Auto
No.
Lin
Tref20
8
pH
AR
6
1
LoBat nLF
Tref25
Time
Year Ident
Day.Month
Baud
Sal
cm
1/
K
/
RCL
REL2
pH/
m
cm
S/
%
mg/l
Sal
O
S
23
mV
REL1
TP
2 4 8
°
C
ARng