This document is the user manual of Hanna's HI 95725C Free & Total Chlorine Cyanuric Acid / pH ISM product. The product is an electrochemical analyzer that can measure free chlorine, total chlorine, hypochlorite and pH value.
The HI 95725C is an auto-diagnostic portable microprocessor meter designed for measuring free and total chlorine (Cl₂), cyanuric acid, and pH. It features an advanced optical system based on a special tungsten lamp and narrow band interference filter to ensure accurate and repeatable readings. The instrument includes a powerful CAL CHECK™ validation function using NIST traceable standards.
| Light Source | Tungsten lamp with narrow band interference filter @ 525 nm. |
|---|---|
| Light Detector | Silicon Photocell |
| Environment Temperature | 0 to 50°C (32 to 122°F) |
| Battery Type | 1x9 volt |
| Auto-Shut off (Measurement) | After 10 minutes of non-use |
| Dimensions | 180 x 83 x 46 mm (7.1 x 3.3 x 1.8") |
| Weight | 290 g (10 oz) |
The meter measures free and total chlorine, cyanuric acid, and pH in water samples.
Hold the CAL CHECK key for three seconds until the 'CAL' icon appears.
It indicates that the battery voltage is getting low and needs to be replaced.