wtw Multi 9420 - Page 37

Multi 9420 pH value
ba75964e04 04/2015 37
Calibration evalua-
tion
After calibrating, the meter automatically evaluates the calibration. The zero
point and slope are evaluated separately. The worse evaluation of both is taken
into account. The evaluation appears on the display and in the calibration
record.
Menu item Setting/
function
Explanation
Calibration /
Calibration data stor-
age /Display
- Displays the calibration records.
Further options:
 Scroll through the calibration
records with <><>.
 Using <PRT>, output the dis-
played calibration record to the
USB-B (PC) interface or the USB-
A (USB printer) interface.
 Using <PRT_>, output all calibra-
tion records to the USB-B (PC)
interface or the USB-A (USB
printer) interface.
 Quit the display with <ESC>.
 Switch directly to the measured
value display with <M>.
Calibration / Calibra-
tion data storage /
Output to USB flash
drive or printer
- Outputs the stored calibration data to
the USB-A interface (USB memory
device/USB printer)
Calibration /
Calibration data stor-
age /
Output to RS232/USB
- Outputs the stored calibration data to
the USB-B interface (PC)
Display Calibration
record
Zero point
[mV]
Slope [mV/pH]
+++
-15 ... +15 -60.5 ... -58.0
++
-20 ... <-15
or
>+15 ... +20
>-58.0 ... -57.0
+
-25 ... <-20
or
>+20 ... +25
-61.0 ... <-60.5
or
>-57.0 ... -56.0
-
-30 ... <-25
or
->+25 ... +30
-62.0 ... <-61.0
or
>-56.0 ... -50.0