Máy chuẩn độ mini đo nồng độ kiềm Hanna HI84531

Mini Titrator for Measuring Titratable Alkalinity in Water and Wastewater - HI84531

The HI84531 is an easy to use, fast and affordable automatic mini titrator designed for testing titratable alkalinity levels in water. Based on an acid base titration method, this mini titrator uses an optimized pre-programmed method of analysis with a powerful algorithm that determines the completion of the titration reaction by the use of a glass body pH electrode.

The HI84531 incorporates a precision piston style dosing pump that adjusts the volume of dosing dynamically based on the voltage change. This dosing system reduces the amount of time required for the titration while providing for a highly accurate determination of the amount of titrant used.

This mini titrator is supplied complete with all the materials necessary to perform low and high range measurements of alkalinity in water. All chemicals are premixed and prepackaged including standardized titrants, reagents and pump calibration solution. There is no need for volumetric glassware or analytical balances.

pH Range	-2.0 to 16.0 pH; -2.00 to 16.00 pH
pH Resolution	0.1 pH / 0.01 pH
pH Accuracy	±0.01 pH (@25ºC/77ºF)
pH Calibration	one, two or three-point calibration; four available buffers (4.01, 7.01, 8.30, 10.01)
pH Temperature Compensation	manual or automatic

pH-mV Range	-2000.0 to 2000.0 mV
pH-mV Resolution	0.1 mV
pH-mV Accuracy	±1.0 mV (@25ºC/77ºF)

Temperature Range	-20.0 to 120.0°C; -4.0 to 248.0°F; 253.2 to 393.2 K
Temperature Resolution	0.1°C; 0.1°F; 0.1K
Temperature Accuracy	±0.4°C; ±0.8°F; ±0.4 K (@25ºC/77ºF), without probe error

Titration Range	Low Range: 30.0 to 400.0 mg/L; 0.6 to 8.0 meq/L High Range: 300 to 4000 mg/L; 6.0 to 80.0 meq/L
Titration Resolution	Low Range: 0.1 mg/L (ppm); 0.1 meq/L; High Range: 1 mg/L (ppm); 0.1 meq/L
Titration Accuracy	Low Range: ±1 mg/L or 3% of reading, whichever is greater High Range: ±10 mg/L or 3% of reading, whichever is greater
Titration Method	acid-base titration (strong alkalinity/total alkalinity)
Titration Principle	endpoint titration: 8.30 pH (phenolphthalein) / 4.50 pH (bromcresol green-methyl red)
Titration Pump Speed	10 mL/min
Titration Stirring Speed	600 rpm
Sample Size	Low Range: 50 mL; High Range: 50 mL

pH Electrode	HI1131B glass body, refillable, with BNC connector and 1 m (3.3’) cable (included)
Temperature Probe	HI7662-T stainless steel temperature probe with 1 m (3.3’) cable (included)
Logging Type	Log-on-demand
Logging Memory	up to 400 ( 200 titrations, 200 pH/mV readings)
Connectivity	1 USB port for data storage and export to a PC
Built-in Magentic Stirrer	Built-in magnetic stirrer at 600 rpm
Power Supply	12 VDC adapter (included)
Environment	0 to 50°C (32 to 122°F); RH max 95% non-condensing
Dimensions	235 x 200 x 150 mm (9.2 x 7.9 x 5.9”)
Weight	1.9 kg (67.0 oz.)
Ordering Information	HI84531 is supplied with HI1131B pH electrode, HI7662-M temperature probe, HI84531-50 low range titrant (120 mL), HI84531-51 high range titrant (120 mL), HI84531-55 calibration standard (230 mL), 100 mL beakers (2), dosing pump valve, 5 mL syringe, 2000 µL automatic pipette with two plastic tips, tube set (aspiration tube with titrant bottle cap and dispensing tube with tip), stir bar, power adapter, instruction manual and quality certificate.

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