pH/ISE and Conductivity Bench Meter

HI 4522 is our high-end multiparameter research-grade bench meter, measuring pH/ORP/ISE/EC/Temperature and more. It comes equipped with a backlit 240 x 320 dot-matrix color screen with on-screen help, simultaneous graphing, language selection and custom configurations. pH can be calibrated automatically 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.

For conductivity this meter features EC, resistivity, TDS and salinity measuring scales and stages 1, 2 and 3 USP modes plus linear and natural water temperature compensation. 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.

ISE features include: Direct calibration with measurements in multiple units. Incremental methods include:

· Known addition
· Known subtraction
· Analyte addition
· Analyte subtraction

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 +/-2000 mV
Resolution mV 0.1 mV
Accuracy mV +/-0.2 mV
Range ISE 1 x 10 -7 to 9.99 x 1010 concentration
Resolution ISE 1; 0.1; 0.01 concentration
Accuracy ISE +/-0.5% (monovalent ions); +/-1%
Range Conductivity 0.000 to 9.999 µS/cm; 10.00 to 99.99 uS/cm; 100.0 to 999.9 uS/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 uS/cm; 0.01 uS/cm; 0.1 uS/cm; 0.001 mS/cm; 0.01 mS/cm; 0.1 mS/cm; 1 mS/cm
Accuracy Conductivity +/-1% of reading (+/-0.01 uS/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 Temperature -20.0 to 120C; -4.0 to 248.0F; 253.15 to 393.15K
Resolution Temperature 0.1C; 0.1F; 0.1K
Accuracy Temperature +/-0.2C; +/-0.4F; +/-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 ISE Automatic up to 5 points with 6 standard + 5 custom values
Calibration Conductivity Auto standard recognition, custom calibration solution / 4 point calibration
Calibration Salinity Percent scale -- 1 point (with HI 7037 buffer)
Calibration Temperature 3 points
Relative mV Offset Range +/-2000 mV
Input Channel(s) 1 pH/mV/ISE + 1 EC
Calibration Check pH electrode and buffer condition
Temperature Compensation pH Automatic or manual from -20.0 to 120.0C (-4.0 to 248.0F)
Temperature Compensation EC Linear and non-linear (natural water)
Log-on-Demand 10 Lots, 5000 samples per lot
Auto Endpoint Yes
PC Connection Opti-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)