PH-320 multi-parameter ion meter, used for measuring the ion concentration and pH value of liquid

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During the pH mode, up to 5 points push-button calibration with auto-buffer recognition
Selectable pH buffer standards and temperature units
Automatically calculates and displays electrode slope after calibration
During ORP mode, single point offset calibration allows user adjusts displayed value to a known standard
Absolute or relative millivolt (RmV) measurement provides accurate ORP readings
During the ion mode, 2-5 points push-button calibration from low to high concentrations
Selectable multiple concentration units, including ppm, mg/L and mol/L
Direct readout ion concentration simplifies the elaborate measurement process
Automatic Temperature Compensation (ATC) ensures highly accurate measurements over the entire range
Automatic endpoint function freezes the stable measured values for easy reading and recording data
Calibration due reminder prompts you to calibrate the meter regularly
Manual temperature calibration provides accurate temperature value
Help message as a operational guide to helps you understand how to use meter
Setup menu lets user customizes buffer standards, calibration points, stability conditions, resolution, measurement units, date and time to meet measurement requirements
Reset function can resumes all settings to factory default values
Expanded memory stores and recalls up to 500 readings
Built-in real-time clock stamps stored data to meets GLP standards
Stored data can be transferred into computer via USB communication

pH range: -2.000-20.000pH
pH accuracy: ±0.002pH
Resolution: 0.001, 0.01, 0.1pH, selectable
Calibration solutions: USA (pH1.68/4.01/7.00/10.01/12.45), NIST (pH1.68/4.01/6.86/9.18/12.45), DIN (pH1.09/4.65/6.79/9.23/12.75)
Ion concentration range: 0.001-19999ppm, mg/L or mol/L (Depending on measuring range of Ion Selective Electrode)
Ion concentration accuracy: ±0.5% full scale (Monovalent), ±1% full scale (Divalent)
Calibration points: 2 to 5 points
Calibration solutions: 0.001, 0.01, 0.1, 1, 10, 100, 1000, 10000ppm, mol/L, mg/L
mV range: -1999.9-1999.9mV, mV accuracy: ±0.2mV
Resolution: 0.1, 1mV, selectable
Temperature range: 0-105°C, 32-221°F
Temperature accuracy: ±0.5°C, ±0.9°F
Temperature calibration: manual
Temperature compensation: 0-100°C, 32-212°F, automatic or manual
Auto-off: manual or automatic (10, 20, 30 minutes after last key pressed