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Titrator

AQ/AQV 2100 Series Coulometric / Volumetric Karl Fischer Titrator

Outline

Aquacounter AQ-2100/AQV-2100 series, using Karl Fischer Coulometric/Volumetric method, with various functions, compact size without occupying a large space, have pursued an easy operation to be satisfactory.

Features

  • Large color LCD display the necessary information and real time titration curve.
  • Possible to correspond to both Coulometric/Volumetric titration, and to
    realize twin-buret method. (Optional)
  • GLP correspondent functions.
  • Condition file for controlling water vaporizer EV-2000 is provided.
  • Running costs can be reduced by using small volume titration cells. (optional)
Item Specifications
Titration method Coulometric Karl Fischer titration method
Electrolytic control method Constant current electrolysis, intermittent
electrolysis in the vicinity of the end point only.
Titration control method AC polarization potential difference
detection method
(1) Wait-time (IN TER VAL) controlled;
duration from 1 - 99 sec
(2) Titration-time (T-TIMER ) controlled;
duration from 1 to 99 minutes
Automatic compensation range for
background
0 - 50 μg H2O/min.
Measuring range 10 μg H2O - 99 mg H2O
Accuracy Within CV of 0.3 %
With water-methanol (1 mg H2O/mL),1 g is
measured 10 times.
Required measuring time FAST; 1.8 mg H2O/min (30 μg H2O/sec)
MEDIUM; 1.2 mg H2O/min (20 g H2O/sec)
SLOW; 0.6 mg H2O/min (10 g H2O/sec)
Titration cell capacity 150 mL
Item Specifications
Titration method Volumetric Karl Fischer reagent titration method
Titration control method Intermittent titrant addition while approaching
the end point.
(1) Wait-time (IN TER VAL) controlled;
duration from 1 - 99 sec
(2) Titration-time (T-TIMER ) controlled;
duration from 1 to 99 minutes
Background correction Automatic correction can be enabled/ disabled.
Buret Capacity; 10 mL, reproducibility; ±0.01 mL
(for full discharge, standard deviation for n=5)
Accuracy: within 0.15%
(for full discharge ,n=5)
Tubing Teflon tube of 2 mm (ID) and 3 mm (OD)
Valve selection Automatic selection with ceramic joint valve
Number of burets 1; (expandable to 2)
Measurement range 0.1 mgH2O - 500 mgH2O
Minimum volume of addition 0.005 mL
Titration cell capacity 150 mL, minimum volume of consumption;
about 30 ml