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FUNCTIONAL DESCRIPTION
4.4. LCD DESCRIPTION
During the instrument’s operation information is displayed on the LCD.
9
8
7
6
5
1
2
3
4
1. Current time and instrument mode, titrator or pH meter
2. pH electrode condition
3. Instrument status
4. Virtual option keys
5. Stirrer and reading status
Stirrer on
Stirrer is not working properly
Pump running
Unstable reading
6. Main reading information
7. pH temperature compensation, ATC (automatic) or MTC (manual)
8. Temperature reading
9. Indicates the parameter can be modified
4.5. DOSING PUMP
The dosing pump is based on a valve that automatically moves the titrant between the titrant
bottle and syringe when filling the syringe and between the syringe and sample when dispensing.
A replaceable 5 mL plastic syringe is used to limit the amount of titrant used per test to ensure the
highest possible accuracy. Before a set of titrations, it is necessary to prime the dosing system.
Note:
Once titrations have been completed, the dosing system should be cleaned with deionized
water using the prime feature.
