Analyser for on-line and continuous measurement of dissolved sodium.

HIGHER PERFORMANCES
Relative error : < ±5 % or ±0,5 µg/l
Stability (1 week) : < 5%
Repeatability : < + 2%

OPERATION PRINCIPLE
The measurement principle of the sodium analyser SCA 2340 is based on the use of a specific electro-chemical, associated to a sample conditioning system using ammonia, i.e. :

• Compliant with ASTM D 2791 standard
• Assuring the pH stability and ionic strength
• Well-known and commonly used product, subjected to a stabilized legislation, conditioned in tested metal bottles, without explosive risk.

The automatic dual point calibration is realized by graduated solutions addition, related to international standards in accordance with ISO 10012-1 ou NF X 07-010 standards. In conformity with ISO 9000, this calibration process guarantees measurement traceability.

The calibration system takes into account :

• past calibrations,
• acceptance criteria,
• 20 past calibrations memorizing,
• detection of any calibration system failure.

LOWER COSTS
High availability : < 2h of intervention each month
Low ammonia consumption (bottle autonomy B14 > 3 years)
Calibration completely automatic
Low standard solutions consumption (autonomy : 2 months)

ERGONOMICS
On-line help
Self diagnostic
Clear dialogue
Automatic calibration
Built-in self-test
Dialogue and control by drop-down menus

OPTIONS
2 to 6 voices sample switch
4 additional analog outputs
2 additional relays