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Chematest 35
Menu Explanations
1.3 Calibration History
Sensors
Displays previous calibrations of the pH, redox and conductivity
sensors (the calibration history of the conductivity sensor can only
be displayed if the conductivity sensor is connected).
Each record includes the following data:
Date, time
Measured values depending on sensor:
– pH: Offset and slope in mV
– Redox: Offset in mV
– Conductivity: Cell constant, temperature in °C
User
Calibration passed/failed
NOTICE:
For better traceability, both successful and failed
attempts are stored in the calibration history. However, if a
calibration fails, the instrument continues to use the last valid
calibration.
Up to 64 calibrations are memorized for each sensor. Then the old
-
est verification is deleted to save the newest one.
2 Diagnostics
2.1 Alarms
Pending errors
Provides the list of active errors with their status (active, acknowl
-
edged). If an active error is acknowledged, it is moved to the Mes
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sage List.
Message List
Shows the error history: Error code, date and time of issue and sta
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tus (active, acknowledged, cleared). 64 errors are memorized.
Then the oldest error is cleared to save the newest error.
The meaning of each error message is explained in section
2.2 Identification
Designation:
Designation of the instrument, e.g. Chematest 35.
S/N:
Serial number of the instrument.
Hardware:
Hardware version of the Chematest 35.
Firmware:
Installed firmware version.
Bootloader:
Installed bootloader version.
Language Pack:
Installed language pack.
Factory test:
Test date of the instrument.
