Xylem SI Analytics Lab 865, Руководство по эксплуатации

Страница: 38 / 68

Settings Lab 865
38
ba77145e02 12/2017
7.1.2 Buffer sets for calibration
You can use the buffer sets quoted in the table for an automatic calibration. The
pH values are valid for the specified temperature values. The temperature
dependence of the pH values is taken into consideration during the calibration.
Calibration / Buffer ConCal
NIST/DIN
... Buffer sets to be used for pH cali-
bration (see section 5.2 C
ALIBRA
-
TION
, page 24).
Calibration / One
point calibration
Yes
No
Quick calibration with 1 buffer
Calibration / Cali-
bration interval
1 ... 7 ... 999 d Calibration interval for the pH elec-
trode (in days).
The meter reminds you to calibrate
regularly by the flashing sensor
symbol in the measuring window.
Calibration / Unit for
slope
mV/pH
%
Unit of the slope.
The % display refers to the Nernst
slope of -59.2 mV/pH (100 x deter-
mined slope/Nernst slope).
Man. temperature -25 ... +25 ...
+130 °C
Entry of the manually determined
temperature. For measurements
without temperature sensor only.
Temperature unit °C
°F
Temperature unit,
degrees Celsius or degrees Fahr-
enheit.
All temperatures are displayed
with the selected unit.
Resolution pH 0.001
0.01
0.1
Resolution of the pH display
Stability control On
Off
Switches on or off the automatic
stability control during measure-
ment (see section 5.1.1 M
EASUR
-
ING THE P
H
VALUE
, page 21)
Reset - Resets all sensor settings to the
delivery condition (see section
7.4.1 R
ESETTING THE MEASURE
-
MENT SETTINGS
, page 43).
Menu item Possible set-
ting Description