This document is the instruction manual of Hanna Instruments Inc.'s HI 95724C Free & Total Chlorine ISM 24, which introduces the use and maintenance methods of the product.
The HI 95724 is an auto-diagnostic portable microprocessor meter designed for measuring free and total chlorine content in water. It features an advanced optical system with a tungsten lamp and narrow band interference filter, ensuring accurate and repeatable readings. The instrument includes a CAL CHECK validation function to verify performance using NIST traceable standards.
| Resolution | 0.01 mg/L from 0.00 to 3.50 mg/L; 0.10 mg/L above 3.50 mg/L |
|---|---|
| Precision | +/-0.03 mg/L @ 1.00 mg/L |
| Light Source | Tungsten lamp with narrow band interference filter @ 525 nm |
| Battery Type | 1x9 volt |
| Auto-Shut off | After 10' of non-use in measurement mode; after 1 hour of non-use in calibration mode. |
| Dimensions/Weight | 180 x 83 x 46 mm (7.1 x 3.3 x 1.8"}/290 g (10 oz) |
The meter measures free and total chlorine content in water samples in the 0.00 to 5.00 mg/L (ppm) range.
The method is an adaptation of the USEPA METHOD 330.5 for wastewater, and Standard Method 4500-Cl G for drinking water.
The instrument turns off after 10 minutes of non-use in measurement mode or after 1 hour if left in calibration mode.