This document is a manual for Hanna Instruments HI 770, introducing the features and characteristics of the product, including measurement range, resolution, accuracy, light source, light detector, method, environment, battery type, auto-off time, dimensions, weight, etc.
This manual provides instructions for the Hanna Instruments HI 770, a portable meter designed for measuring silica concentration in the high range (0 to 200 ppm). The device utilizes a light-emitting diode source and a silicon photocell detector, adapting the USEPA Method 370.1 and Standard Method 4500-SiO2 C. It is supplied with cuvettes, reagents for six tests, and a battery.
| Range | 0 to 200 ppm |
|---|---|
| Resolution | 1 ppm |
| Accuracy | ±2 ppm = ±5% of reading @ 25 °C/ 77 F |
| Light Source | Light Emitting Diode @ 470 nm |
| Light Detector | Silicon Photocell |
| Environment | 0 to 50 °C (32 to 122); max 95% RH non-condensing |
| Battery Type | 1x 1.5V AAA |
| Auto-Shut off | After 10 minutes of non-use |
| Dimensions | 81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5") |
| Weight | 64 g (2.25 oz) |
The measurement range is 0 to 200 ppm.
The instrument automatically turns off after 10 minutes of non-use.
The meter requires one 1.5V AAA battery.
The device operates in temperatures from 0 to 50 °C with a maximum humidity of 95% RH non-condensing.