HANNA HANNA HI4521 Multi Parameter Water Quality Analyzer from Italy

resolution

0.1 pH;0.01 pH; 0.001 pH

accuracy

±0.1 pH;±0.01 pH;±0.002 pH

Calibration Mode

Automatic 5-point calibration, with 8 built-in calibration points (pH 1.68, 3.00, 4.01, 6.86, 7.01, 9.18, 10.01, 12.45) and 5 user-defined calibration points

redox

measuring range

±2000.0 mV

resolution

0.1 mV

accuracy

±0.2 mV

Calibration Mode

Acidity automatic calibration, built-in 8 standard calibration points and 5 user-defined calibration points;
8 calibration points: 1.68, 3.00, 4.01, 6.86, 7.01, 9.18, 10.01, 12.45 pH

conductivity

measuring range

0.000-9.999 µS/cm; 10.00-99.99 µS/cm; 100.0-999.9 µS/cm; 1.000-9.999 mS/cm; 10.00-99.99 mS/cm; 100.0-999.9 mS/cm; 1000 mS/cm with seven measurement ranges

resolution

0.001 µS/cm; 0.01 µS/cm; 0.1 µS/cm; 0.001 mS/cm; 0.01 mS/cm; 0.1 mS/cm; 1 mS/cm

accuracy

± 1% of the reading (± 0.01 µ S/cm)

Calibration Mode

Automatically identify built-in calibration points or use user-defined calibration points for calibration

resistivity

measuring range

Seven measurement ranges: 1.00-99.99 Ω• cm; 100.0-99.99 Ω• cm; 1.000-9.999 k Ω• cm; 10.00-99.99 k Ω• cm; 100.0-99.99 k Ω• cm; 1.00-99.99 M Ω• cm; 10.0-100.0 M Ω• cm

resolution

0.01 Ω•cm;0.1 Ω•cm;0.001 kΩ•cm;0.01 kΩ•cm;0.1 kΩ•cm;0.01 MΩ•cm;0.1 MΩ•cm

accuracy

± 2% of the reading (± 1 Ω• cm)

temperature compensation

Conductivity compensation is: linear or nonlinear automatic temperature compensation

TDS

measuring range

0.000-9.999 ppm; 10.00-99.99 ppm; 100.0-999.9 ppm; 1.000-9.999 ppt; 10.00-99.99 ppt; 100.0-400.0 ppt six measurement ranges

resolution

0.001 ppm; 0.01 ppm; 0.1 ppm; 0.001 ppt; 0.01 ppt; 0.1 ppt

accuracy

± 1% or ± 0.01 ppm of reading

TDS/EC conversion coefficient

0.40-1.00

salinity

measuring range

Actual salinity: 0.00-42.00; Salinity of seawater: 0.00-80.00 ppt; Percentage salinity: 0.0-400.0%

resolution

0.01; 0.1%

accuracy

± 1% of the reading

Calibration Mode

Percentage salinity single point calibration

temperature

measuring range

-20.0-120℃; -4.0-248.0°F;253.15-393.15K

resolution

0.1℃; 0.1°F;0.1K

accuracy

±0.2℃; ±0.4°F;±0.2K

Calibration Mode

3-point calibration

Basic indicators

measurement channel

One pH/mV/ISE channel and one EC channel

End point locking

Automatic endpoint locking

Data Storage

Automatic or manual storage, 10 sets, 5000 data per set

Data interface

USB/RS232 data interface

screen display

240 × 320 dot matrix color display screen, with functions such as on-screen assistance and user confirmation

Power Mode

AC220/12VDC power adapter

Size/Weight

Host: 159 × 230 × 93 mm/800 g

Choosing power distribution is very important

Acidity/Redox

HI1131B can be filled with glass composite acidity and is used for routine solution measurement in the laboratory

HI1200B non fillable plastic composite acidity meter, used for laboratory and on-site routine solution measurement

HI1300B non fillable plastic composite acidity meter, used for laboratory and on-site pure water measurement

HI3131B can be filled with glass ORP electrode, applied for laboratory redox potential measurement

EC/TDS/NaCl

HI76312 conductivity/resistivity/TDS/salinity four ring electrode, applied to laboratory EC/TDS/NaCl measurement

temperature

HI7662-T high-precision temperature probe