HANNA HI4521-01 Research Grade Benchtop Multiparameter Meter with Calibration Check™ & USP, Parameters: Conductivity/ORP/pH/Resistivity/Salinity/Temperature/TDS, Electrical: 115V

HI 4521-01 is a USP compliant dual-channel, research-grade laboratory benchtop ISE/pH meter & conductivity meter with a backlit 240 x 320 dot-matrix color screen and millesimal measuring resolution. Features include auto-logging and real-time graphic displays, auto-end point mode and a fully customizable SETUP button. This unit allows for automatic (ATC) or manual (MTC) temperature compensation. For accountability, on-screen GLP data displays calibration information, including buffer values and expiration date concurrent to measurement readout and logged graph data.For ISE measurements, an ionic strength constant value is stored with GLP data. During ISE Mode, the user has a choice of several incremental methods. With the option to choose up to 5 calibration points for pH - selected from a list of 5 custom & 8 memorized buffers - the system can be fitted to any measuring range.Hanna's exclusive Calibration Check™ diagnostics system keeps the user informed about the quality and condition of the electrode and buffer groups for calibration. An enhanced warning system alerts the user when measuring outside calibration. This system will also remind the user when a new calibration is due, or when the wrong buffer is being used for calibration. Galvanically isolated measurement channels of HI 4521 eliminates interference and instability. HI 4521 performs all 3 stages of USP <645> conductivity tests for water quality and provides clear directions on how to run each testing stage. Automatically monitors the temperature, conductivity and stability during testing and determines whether a sample is within UPS limits. This multiparameter meter is equipped with USB and RS232 ports for PC connectivity and a 12 Vdc power supply. 115V (See Item #: HAN-HI4521 for 230V) Hanna #: HI 4521-01. • Range (pH): -2.0 to 20.0; -2.00 to 20.00; -2.000 to 20.000 pH • Resolution (pH): 0.1 pH; 0.01 pH; 0.001 pH • Accuracy (pH): ±0.1 pH; ±0.01 pH; ±0.002 pH • Range (mV): ±2000mV • Resolution (mV): 0.1mV • Accuracy (mV): ±0.2mV • Range (EC): 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 (EC): 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 (EC): ±1% of reading• 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): 0.001ppm; 0.01ppm; 0.1ppm; 0.001ppt; 0.01ppt; 0.1ppt • Accuracy (TDS): ±1% of reading• Factor (TDS): 0.40 to 1.00 • Range (Salinity): Practical salinity: 0.00 to 42.00; Natural seawater: 0.00 to 80.00ppt; Percent: 0.0 to 400.0% • Resolution (Salinity): 0.01 Practical salinity/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 w/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 Recognition, custom calibration solution/4-Pt. calibration.• Calibration Salinity): % Scale - 1 point (w/HI 7037 buffer) • Calibration (Temperature): 3 points • Relative mV Offset Range: ±2000 mV • Input Channel(s): 1 pH/mV + 1EC • Calibration Check: pH electrode and buffer condition.• Temperature Compensation (pH): Automatic or manual from -20.0 to 120.0°C (-4.0 to 248.0°F) • Temperature Compensation (Conductivity): Linear and non-linear (natural water).

HI 4521-01 is a USP compliant dual-channel, research-grade laboratory benchtop ISE/pH meter & conductivity meter with a backlit 240 x 320 dot-matrix color screen and millesimal measuring resolution. Features include auto-logging and real-time graphic displays, auto-end point mode and a fully customizable SETUP button. This unit allows for automatic (ATC) or manual (MTC) temperature compensation. For accountability, on-screen GLP data displays calibration information, including buffer values and expiration date concurrent to measurement readout and logged graph data.For ISE measurements, an ionic strength constant value is stored with GLP data. During ISE Mode, the user has a choice of several incremental methods. With the option to choose up to 5 calibration points for pH - selected from a list of 5 custom & 8 memorized buffers - the system can be fitted to any measuring range.Hanna's exclusive Calibration Check™ diagnostics system keeps the user informed about the quality and condition of the electrode and buffer groups for calibration. An enhanced warning system alerts the user when measuring outside calibration. This system will also remind the user when a new calibration is due, or when the wrong buffer is being used for calibration. Galvanically isolated measurement channels of HI 4521 eliminates interference and instability. HI 4521 performs all 3 stages of USP <645> conductivity tests for water quality and provides clear directions on how to run each testing stage. Automatically monitors the temperature, conductivity and stability during testing and determines whether a sample is within UPS limits. This multiparameter meter is equipped with USB and RS232 ports for PC connectivity and a 12 Vdc power supply. 115V (See Item #: HAN-HI4521 for 230V) Hanna #: HI 4521-01. • Range (pH): -2.0 to 20.0; -2.00 to 20.00; -2.000 to 20.000 pH • Resolution (pH): 0.1 pH; 0.01 pH; 0.001 pH • Accuracy (pH): ±0.1 pH; ±0.01 pH; ±0.002 pH • Range (mV): ±2000mV • Resolution (mV): 0.1mV • Accuracy (mV): ±0.2mV • Range (EC): 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 (EC): 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 (EC): ±1% of reading• 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): 0.001ppm; 0.01ppm; 0.1ppm; 0.001ppt; 0.01ppt; 0.1ppt • Accuracy (TDS): ±1% of reading• Factor (TDS): 0.40 to 1.00 • Range (Salinity): Practical salinity: 0.00 to 42.00; Natural seawater: 0.00 to 80.00ppt; Percent: 0.0 to 400.0% • Resolution (Salinity): 0.01 Practical salinity/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 w/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 Recognition, custom calibration solution/4-Pt. calibration.• Calibration Salinity): % Scale - 1 point (w/HI 7037 buffer) • Calibration (Temperature): 3 points • Relative mV Offset Range: ±2000 mV • Input Channel(s): 1 pH/mV + 1EC • Calibration Check: pH electrode and buffer condition.• Temperature Compensation (pH): Automatic or manual from -20.0 to 120.0°C (-4.0 to 248.0°F) • Temperature Compensation (Conductivity): Linear and non-linear (natural water).