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Silica is found in all natural waters in the dissolved mineral form. Silica is only slightly soluble in water; solubility and therefore the form of silica in water depends on the pH level of the water and on the minerals containing silica in contact with water.
Silica’s presence in industrial applications is undesirable since it causes scale. In particular, high pressure turbines are highly effected by this factor.
Heating systems and reverse osmosis plants also require monitoring of silica.
HI 96770 measures silica (SiO2) content from 0 to 200 mg/L.
HI 96770 are supplied with sample cuvettes with caps (2 ea.), battery and instructions.
HI 96770C includes photometer, sample cuvettes with caps (2 ea.), 9V battery, scissors, cloth for wiping cuvettes, instrument quality certificate, instruction manual and rigid carrying case.
|Range||0 to 200 mg/L (as SiO2)|
|Accuracy||±1 mg/L ±5% of reading @ 25°C|
|Light Source||light emitting diode|
|Light Detection||Silicon Photocell with narrow band interference filter @ 466 nm.|
|Method||adaptation of the USEPA METHOD 370.1 for drinking, surface and saline waters, domestic and industrial wastes and Standard Method 4500-SiO2 C|
|Environment||0 to 50°C (32 to 122°F); max 95% RH non-condensing|
|Power Supply||9V battery|
|Auto Shut-off||after ten minutes of non-use in measurement mode; after one hour of non-use in calibration mode; with last reading reminder|
|Dimensions||192 x 104 x 69 mm (7.6 x 4.1 x 2.7")|
|Weight||360 g (12.7 oz.)|
|HI 93703-50||Cuvette Cleaning Solution|
|HI 731318||Cuvette Cleaning Cloth|
|HI 731331||Glass Cuvette Set|
|HI 731335||Cuvette Cap for HI 957xx Series Meters|