EAM-SPH series pH meter probe
When the pH probe is placed in an aqueous solution, the pH meter can measure a voltage value in the two signal lines of the electrodes and convert the result into the pH value of the aqueous solution. The pH probe has a glass film sensitive to hydrogen ions, and the quality and process of the glass determine the sensitivity, response speed, and impedance of the measurement.
Main features | SPH-3W | SPH-4C | SPH-4V | SPH-4P | SPH-4T | SPH-4F |
Measuring range | pH 2~12 | pH 2~14 | pH 0~14 | pH 2~14 | pH 2~14 | pH 2~14 |
Operating temperature | 0~80℃ | 0~60℃ | 0~100℃ | -10~60℃ | 0~130℃ | -10~100℃ |
Maximum pressure | 6 bar | 2 bar | 7bar | 6 bar | 6~16 bar | 16 bar |
Body material | glass | glass | PPS | glass | glass | glass |
Diaphragm material | glass | glass | Pellon PTFE | glass | glass | glass |
Diaphragm type | Single hole opening | ceramics (1) | Double Opening | ceramics (3) | Double Opening | |
Contact type | two | two | one | two | two | two |
Electrolyte | Potassium chloride gel | Potassium chloride gel | gel | Potassium chloride gel | Blue 3M potassium chloride | Pharma Polisolve |
Mechanical connection | PG 13.5mm | PG 13.5mm | 3/4”NPT | PG 13.5mm | PG 13.5mm | PG 13.5mm |
Electronic connection | S8 | S8 | S8 | S8 | S8 | |
The signal line | free of | free of | 5-meter | free of | free of | free of |