Xylem HandyLab 100 - Manual (Page 30)

Operation HandyLab 100
30 ba77062d01 03/2014
4.4.4 Settings for pH and ORP measurements
Overview The following settings are possible for pH and ORP measurements:
 Resolution
 Calibration interval
 Buffers for calibration
 Unit of the temperature
 Automatic stability control
 Unit for slope
 Calibration record (display)
Settings The settings are made in the menu for calibration and measurement
settings of the pH/ORP measurement. To open the settings, display the
required parameter in the measured value display and press the <F1>/
[menu] or <ENTER> key. After completing the settings, switch to the
measured value display with <M>.
Menu item Possible
setting Explanation
Calibration / Calibra-
tion record - Displays the calibration
record of the last calibration.
Calibration / Buffer TEC
NIST/DIN
VariCal
... Buffer sets to be used for pH
calibration.
More buffers and details,
see section 4.4.5.
Calibration / One
point calibration Yes
No Quick calibration with 1 buf-
fer
Calibration / Calibra-
tion interval 1 ... 999 d Calibration interval for the
pH electrode (in days).
The meter reminds you to
calibrate regularly by the
flashing sensor symbol in
the measuring screen.
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 ... +130 °C Entry of the manually deter-
mined temperature. For
measurements without tem-
perature sensor only.