Benchtop Multiparameter Water Quality Meter – Model: PH-900

Features:

PH Mode: * 1 to 5 points push-button calibration with auto-buffer recognition.

* Selectable pH buffer standard ( USA / NIST / DIN ) or using the custom calibration solutions.

* Automatic electrode slope display helps user decide whether to replace sensor. ORP Mode:

• 1 point offset calibration allows adjusting the displayed value to known standard.
• Relative and absolute mV measurements provide the accurate ORP readings. Ion Concentration Mode:
• 2 to 5 points calibration including the eight concentration points can be selected.
• mV measurement mode can be used for checking the performance of current ion selective electrode.
• Automatically recognize ion electrodes, does not need to specify the type of ion.
• Direct ion concentration readout simplifies the elaborate measurement process.
• Selectable concentration unit including the ppm, mg/L, mol/L, mmol/L for different Applications. Conductivity/TDS/Salinity/Resistivity Mode:
• 1 to 5 points calibration with automatic calibration solution recognition.
• Selectable cell constant ( 0.1/1/10 ), normalization temperature ( 20°C or 25°C )
• TDS conversion factor, seawater and practical salinity measurement modes.
• Linear or pure water compensation improves the measurement accuracy. Dissolved Oxygen Mode:
• 1 or 2 points calibration using the air-saturated water and zero oxygen solution.
• Manual salinity and barometric pressure compensation ensure accurate readings. Other Features:
• Automatic Temperature Compensation provides accurate measured values over the entire range.
• Calibration Due Reminder prompts user to calibrate the meter regularly.
• Stability indicator automatically shows current measurement status.
• Auto-Hold function freezes stable reading for easy viewing and recording.
• Manual temperature calibration corrects the temperature deviation.
• Selectable temperature unit (°C or °F ) meets different application requirements.
• Automatic electrode diagnosis shows zero point offset and electrode slope.
• Help message as an operational guide that helps user quickly using the meter.
• System menu allows setting the 15 parameters, including the resolution, number of calibration points, stability condition, measurement unit, etc.
• The reset feature automatically resumes all settings back to factory default options.
• Expanded memory stores and recalls up to 500 readings.
• Built-in real-time clock stamps stored data to meet GLP standard.
• Stored data can be transferred into computer by USB communication interface