Xylem MULTI 3400i pH/Oxi MULTI-PARAMETER METERS - Manual (Page 36)

Operation pH/ 3400i
36
4.4.4 AutoRead AR (Drift control)
The AutoRead function (drift control) checks the stability of the mea-
surement signal. The stability has a considerable impact on the repro-
ducibility of the measured values.
Criteria With identical measurement conditions, the following applies:
1 Call up the measuring mode with <M> and/or <
▲> <▼> .
2 Activate the AutoRead function with <AR>. The current mea-
sured value is frozen (hold function).
3 Start AutoRead with <RUN/ENTER>.
AR flashes until a stable measured value is reached. This mea-
sured 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.
RCL
cm
cm M
m S/
%
/pH mV
pH U TDS
Tref20
Cal
8
S
1
Sal
1/cmSal
AutoCal DIN
Lin
Tref25
nLF AutoCal TEC
Auto Store
LoBat AR
Time Baud
Day.Month No.
Ident Year
mbar
° F
/ K %
6 7 1
9 2
° C
TP
7
O
mg/l
ARng
Measured
parameter Reproducibility Response time
D. O. concentra-
tion better than 0.05 mg/l > 10 seconds
D. O. saturation
index better than 0.6 % > 10 seconds