This document is an instruction manual for HI 95717C Phosphate High Range ISM. It provides information about the specifications, precision and accuracy of the instrument, as well as the steps for operation, measurement, and calibration.
The HI 95717 is an auto-diagnostic portable microprocessor meter designed to measure phosphate (PO4) content in water samples within a range of 0.0 to 30.0 mg/L. 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 using NIST traceable standards to verify performance at any time.
The manual covers preliminary examination, general description, abbreviations, specifications, precision and accuracy definitions, principle of operation, functional descriptions, display codes, measurement procedures, validation, calibration, battery replacement, and accessories. It also includes information on factory calibration reset and warranty details.
| Resolution | 0.1 mg/L |
|---|---|
| Precision | +0.5 mg/L @ 12.0 mg/L |
| Light Source | Tungsten lamp with narrow band interference filter @ 525 nm |
| Light Detector | Silicon Photocell |
| Operating Temperature | 0 to 50°C (32 to 122°F) |
| Battery Type | 1x9 volt |
| Auto-Shut off (Measurement Mode) | After 10 minutes of non-use |
| Dimensions | 180 x 83 x 46 mm (7.1 x 3.3x 1.8") |
Enter the calibration mode by holding CAL CHECK for three seconds, then hold ZERO for 10 seconds until 'F.CAL' and '717' appear.
The test requires HI 93717A-0 Phosphate HR Reagent A (10 drops) and HI 93717B-0 Phosphate HR Reagent B (1 packet).
The instrument is warranted for two years against defects in workmanship and materials when used for its intended purpose.