This manual provides instructions for the use of the HI 93717 Phosphate High Range ISM. It covers the instrument's features, operation, and maintenance.
The HI 93717 is a portable instrument designed to measure phosphate (PO4) content in water and wastewater within a range of 0.0 to 30.0 mg/L. It utilizes an exclusive positive-locking system for cuvet placement and features an auto-shut off function after 10 minutes of non-use. The device operates using a light source of 470 nm and a silicon photocell to detect the blue tint caused by the reaction between phosphate and reagents.
The manual details the step-by-step measurement procedure, including zeroing the instrument, adding specific reagents (HI 93717A-0 and HI 93717B-0), and reading the results. It also lists potential interferences such as sulfide, high chloride, calcium, magnesium, and ferrous iron, along with tips for ensuring accurate measurements and instructions for battery replacement.
| Range | 0.0 to 30.0 mg/L |
|---|---|
| Resolution | 0.1 mg/L |
| Accuracy | +1 mg/L +4% of reading |
| Light Source | Light Emitting Diode @ 470 nm |
| Operating Temperature | 0 to 50°C (32 to 122°F) |
| Battery Type | 1 x 9 volt |
| Auto-Shut off | After 10 minutes of non-use |
| Dimensions | 80 x 83 x 46 mm |
| Weight | 290 g (10 oz) |
The meter measures phosphate content in the 0.0 to 30.0 mg/L (ppm) range.
The instrument requires HI 93717A-0 Phosphate HR Reagent A and HI 93717B-0 Phosphate HR Reagent B.
Interference may be caused by sulfide, chloride above 150000 mg/L, calcium above 10000 mg/L, magnesium above 40000 mg/L, ferrous iron above 100 mg/L, or large amounts of color or suspended matter.
The battery life is approximately 40 hours.