This manual introduces the product features, usage methods and other information of Hanna HI 93705 Silica ISM
The HI 93705 is a portable instrument designed to measure silica (SiO2) content in water and wastewater within a range of 0.00 to 2.00 mg/L. It utilizes an exclusive positive-locking system for cuvet placement and features liquid and powder reagents dosed precisely for maximum repeatability.
| Range | 0.00 to 2.00 mg/L |
|---|---|
| Resolution | 0.01 mg/L |
| Accuracy | +/-0.03 mg/L +3% of reading |
| Light Source | LED @ 890 nm |
| Battery Life | 40 hours |
| Auto-Shut off | After 10 minutes of non-use |
It uses the heteropoly blue method, adapted from ASTM D859.
The manual states that replacement must only take place in a non-hazardous area using a 9V alkaline battery.
Phosphate above 60 mg/L causes a 2% reduction, and above 75 mg/L causes an 11% reduction.