This document is an instruction manual for the Hanna Instruments product HI 3512. The product is a bench meter with two channels for pH/ORP/ISE, EC/TDS/NaCl/Resistivity, and temperature measurements. The manual provides the necessary information for correct use of the instrument and gives a precise idea of its versatility.
The HI 3512 is a professional two-channel bench meter featuring a graphical LCD, designed for laboratory results and accuracy. It supports Channel 1 for pH/mV/ISE and temperature, and Channel 2 for EC/TDS/NaCl/Resistivity and temperature. The instrument includes diagnostic features to alert users when electrodes need cleaning and offers user-selectable warnings for calibration ranges and timeouts.
| Channels | Two input channels |
|---|---|
| Channel 1 Measurements | pH/mV/ISE and temperature |
| Channel 2 Measurements | EC/TDS, NaCl/Resistivity and temperature |
| pH Calibration Points | Up to five calibration points |
| EC Calibration Points | Up to two calibration points |
| Log Capacity | Up to 400 samples |
Yes, the instrument can measure with ORP electrodes on the pH channel input, utilizing its capability to measure mV with a resolution up to 0.1 mV.
The instrument supports seven standard pH buffers: pH 1.68, 4.01, 6.86, 7.01, 9.18, 10.01, and 12.45.