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HANNA’s new family of research grade laboratory benchtop instruments feature a 240 x 320 dot-matrix color display with on-screen help, simultaneous graphing, language selection and custom configuration. Four models are available to measure pH, pH and ISE, conductivity, pH and conductivity. HANNA?s pH meters feature a 5 point calibration with a choice of custom or memorized buffers and provide the user with the exclusive CAL CHECK? electrode diagnostic system. ISE models allow direct calibration and measurement with a choice of units, as well as incremental methods. Our new conductivity meters have EC, resistivity, TDS and salinity measuring scales. EC has an extended range from 0.001 µS/cm to 1 S/cm with auto recognition of the probe type used. Salinity measurements can be displayed in practical salinity, natural sea water or in percent scale. All conductivity models feature stages 1, 2 and 3 USP modes plus linear and natural water temperature compensation. All models are equipped with USB and RS 232 ports for PC connectivity and offer logging, graphing and GLP. |
HI 4521 is supplied with 4-ring EC probe, glass body pH electrode, temperature probe, power adapter, pH 4 and pH 7 buffer solutions, electrode refilling solution, electrode holder and instructions. |
Specifications: | |
Range (pH) | -2.0 to 20.0; -2.00 to 20.00; -2.000 to 20.000 |
Resolution (pH) | 0.1 pH; 0.01 pH; 0.001 |
Accuracy (pH) | ±0.1 pH; ±0.01 pH; ±0.002 |
Range (mV) | ±2000 mV |
Resolution (mV) | 0.1 mV |
Accuracy (mV) | ±0.2 mV |
Range (Conductivity) | 0.000 to 9.999 µS/cm; 10.00 to 99.99 µS/cm; 100.0 to 999.9 µS/cm; 1.000 to 9.999 mS/cm; 10.00 to 99.99 mS/cm; 100.0 to 999.9 mS/cm; 1000 mS/cm |
Resolution (Conductivity) | 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 (Conductivity) | ±1% of reading (±0.01 µS/cm) |
Range (Resistivity) | 1.00 to 99.99 Ohm?cm; 100.0 to 999.9 Ohm?cm; 1.000 to 9.999 kOhm?cm; 10.00 to 99.99 kOhm?cm; 100.0 to 999.9 kOhm?cm; 1.00 to 9.99 MOhm?cm; 10.0 to 100.0 MOhm?cm |
Resolution (Resistivity) | 0.01 Ohm?cm; 0.1 Ohm?cm; 0.001 kOhm?cm; 0.01 kOhm?cm; 0.1 kOhm?cm; 0.01 MOhm?cm; 0.1 MOhm?cm |
Accuracy (Resistivity) | ±2% of reading (±1 Ohm?cm) |
Range (TDS) | 0.000 to 9.999 ppm; 10.00 to 99.99 ppm; 100.0 to 999.9 ppm; 1.000 to 9.999 ppt; 10.00 to 99.99 ppt; 100.0 to 400.0 ppt |
Resolution (TDS) | 0.001 ppm; 0.01 ppm; 0.1 ppm; 0.001 ppt; 0.01 ppt; 0.1 ppt |
Accuracy (TDS) | ±1% of reading (±0.01 ppm) |
Factor (TDS) | 0.40 to 1.00 |
Range (Salinity) | Practical salinity: 0.00 to 42.00; Natural seawater: 0.00 to 80.00 ppt; Percent: 0.0 to 400.0% |
Resolution (Salinity) | 0.01 for practical salinity/natural sea water; 0.1% for percent scale |
Accuracy (Salinity) | ±1% of reading |
Range (Temp) | -20.0 to 120°C; -4.0 to 248.0°F; 253.15 to 393.15K |
Resolution (Temp) | 0.1°C; 0.1°F; 0.1K |
Accuracy (Temp) | ±0.2°C; ±0.4°F; ±0.2K |
Calibration (pH) | Automatic up to 5 points with 8 memorized values (pH 1.68, 3.00, 4.01, 6.86, 7.01, 9.18, 10.01, 12.45) + 5 custom buffers |
Calibration (Conductivity) | Auto standard recognition, custom calibration solution/4 point calibration |
Calibration (Salinity) | Percent scale?1 point (with HI 7037 buffer) |
Calibration (Temp) | 3 points |
Input Channel(s) | 1 pH/mV + 1 EC |
Calibration Check | pH electrode and buffer condition |
Temp Compensation (pH) | Automatic or manual from -20.0 to 120.0°C (-4.0 to 248.0°F) |
Temp Compensation (EC) | Linear and non-linear (natural water) |
Log-on-demand/Automatic Data Logging | 10 Lots, 5000 samples per lot/10 Lots, 5000 samples per lot |
Relative mV Offset Range | ±2000 mV |
Auto Endpoint | Yes |
PC Connection | Opto-isolated USB and RS232 |
Display | 240 x 320 dot-matrix color LCD with on-screen help, graphing, language selection and custom configuration |
Power | 12 VDC adapter (included) |
Dimensions/Weight | 159 x 230 x 93 mm (6.3 x 9.1 x 3.7?)/800 g (1.8 lb.) |
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