The dissolved mineral forms of silica are found in all natural waters. Although silica is only slightly soluble in water and it can be found as ionic silica, silicates, and colloidal or suspended particles. The solubility of silica is highly dependent on pH, temperature, and pressure. Silica's presence in industrial applications, particularly in high pressure turbines, is undesirable because of scaling caused as silica precipitates out of solution at the elevated temperatures and pressures. Heating systems and reverse osmosis plants also require monitoring of silica to ensure process efficiency.
HI97770 is an advanced portable photometer for the measurement of silica in water. This meter offers a superior optical system that utilizes a reference detector and narrow band interference filters for extremely fast and repeatable measurements.
No warm up time before taking a measurement
Tutorial mode for step-by-step instructions
CAL Check to verify meter performance
Hanna Instruments Silica High Range Portable Photometer Kit
#Grup produk P107669289
Spesifikasi
| Logging Memory | 50 readings |
|---|---|
| GLP | Yes |
| Environment Temperature (°C) | 0 to 50 (32 to 122°F); 0 to 100% RH (IP67) |
| Dimensions (mm) | 142.5x102.5x50.5 (5.6x4.0x2.0inch) |
| Automatic Shut-off | After 15 minutes of inactivity (30 minutes before a READ measurement) |
| Cuvette Type | Round 24.6 mm diameter (22 mm inside) |
| Bandpass Filter Bandwidth (nm) | 8 |
| Bandpass Filter Wavelength Accuracy (nm) | ±1.0 |
| Battery Type/Life | 1.5 V AA Alkaline (3 pcs.) / > 800 measurements (without backlight) |
| Photometer/Colorimeter Light Detector | silicon photocell |
| Photometer/Colorimeter Light Source | LED with 466 nm bandpass filter |
| Silica Accuracy (mg/L) | ±1 ±5% of reading at 25°C |
| Silica Method | Adaptation of the US EPA Method 370.1 for Drinking, Surface and Saline Waters, Domestic and Industrial Wastes & Standard Method 4500-SiO2 |
| Silica Range (mg/L) | 0 to 200 (as SiO2) |
| Silica Resolution (mg/L) | 1 |
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