This document is the user manual of HI 96770C Silica High Range ISM
The HI 96770C is an auto-diagnostic portable microprocessor meter designed to measure silica content in water samples ranging from 0 to 200 mg/L. It features an advanced optical system with a tungsten lamp and a narrow band interference filter to ensure accurate and repeatable readings. The instrument includes a CAL CHECK validation function and is splash waterproof for field applications.
The manual covers preliminary examination, general description, specifications, principle of operation, functional description, errors and warnings, general tips for accurate measurement, startup, measurement and validation procedures, calibration, battery management, and accessories. It also details the keypad functions, display elements, and required reagents.
| Resolution | 1 mg/L |
|---|---|
| Accuracy | +1 mg/L 5% of reading @ 25°C |
| Light Source | Tungsten Lamp |
| Light Detector | Silicon Photocell with narrow band interference filter @ 466 nm |
| Method | Adaptation of the USEPA METHOD 370.1 |
| Environment | 0 to 50°C (32 to 122°F); max 95% RH non-condensing |
| Battery Type | 1x9 volt |
| Dimensions | 192 x 104 x 69 mm (7.6 x 4.1 x 2.7") |
| Weight | 360 g (12.7 oz) |
The meter measures the silica content in water samples in the 0 to 200 mg/L range.
The required reagents are Reagent A (HI 93770A-0), Reagent B (HI 93770B-0), and Reagent C (HI 93770C-0).
The instrument turns off after 10 minutes of non-use in measurement mode or after 1 hour if left in calibration mode.