HANNA instruments - HI 84430
Total Titratable Acidity Titrator with pH and Temperature Measurement Capability
The accuracy of the instrument is ensured by performing a peristaltic pump calibration using the provided HANNA standard. The HI 84430 endpoint determination algorithm analyzes the pH vs. volume curve to determine the exact pH endpoint and performs the necessary calculations. The results are displayed in mg/L CaCO3 or meq/L CaCO3 units on the graphic display.
An intuitive interface makes the instrument simple to use. A dedicated HELP key guides the user through set-up and calibration sequences, reports instrument status and aids in troubleshooting.
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Features of HI 84430
- User-friendly interface
- Dedicated HELP key
- Simple to operate
- Log on demand up to 100 samples (50 for pH measurement; 50 for titration results)
- GLP feature, to view last calibration data for pH electrode and pump
- PC interface via USB connection
General Specifications
| pH Range | -2 to 16 |
| pH Resolution | Selectable |
| Power Requirements | 12 Vdc power adapter |
| Weight | 2200 g |
| Titrator Type | Potentiometric |
Additional Specifications
Range
Titratable Acidity (Low Range):
mg/L : 15.0 - 500.0 mg/L as CaCO3
meq/L : 0.3 - 10.0 meq/L
Titratable Acidity (High Range):
mg/L : 400 - 4000 mg/L as CaCO3
meq/L : 8 - 80 meq/L
Temperature: -20.0 to 120.0 °C (-4.0 to 248.0 °F)
Resolution
Titratable Acidity (Low Range): 0.1 mg/L; 0.1 meq/L
Titratable Acidity (High Range): 1 mg/L; 1 meq/L
Temperature: 0.1 °C
Accuracy
Titratable Acidity (Low Range): 5% of reading
Titratable Acidity (High Range): 5% of reading
pH: ± 0.01 pH
Temperature: ±0.4 °C without probe error
Titration Method: Acid-base titration (total acidity)/(strong acidity)
Titration Principle: End point titration : 8.30 pH / 3.7 pH
Pump Volume: 0.5 mL/min
Stirring Speed: 600 rpm
pH Temperature Compensation: manual or automatic from: -20 to 120 °C (-4 to 248 °F)
Logging
Titration: Up to 50 samples
pH: Up to 50 samples
pH Calibration: 1, 2 or 3 point calibration; 3 available buffers (1.68, 4.01; 8.30)
pH Electrode: HI 1131B (included)
Temperature Probe: HI 7662-M (included)
Environment: 0 to 50 °C (32 to 122 °F); max 95% RH non-condensing
Dimensions: 208 × 214 × 163 mm (8.2 × 8.4 × 6.4”)