Silica Photometer with 890 nm LED
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.
Its 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.
HANNA® offers the HI 93705, a microprocessor-based photometer that determines the concentrations of silica in water in a few fast and easy steps.
Silica is determined in the range from 0.00 to 2.00 mg/L.
HI 93705 is supplied with 2 cuvets, battery and instructions.
|Range||0.00 to 2.00 mg/L|
|Accuracy||±0.03 mg/L ±3% of reading|
|Light Source||LED 890 nm|
|Light Life||Life of the instrument|
|Light Detection||Silicon Photocell|
|Battery Type / Life||1 x 9V / approx. 40 hours of continuous use; auto-off after 10 minutes of non use|
|Environment||0 to 50°C (32 to 122°F); RH max 95% non-condensing|
|Dimensions||180 x 83 x 46 mm (7.1 x 3.3 x 1.8″)|
|Weight||290 g (10 oz.)|
|Method||Adaptation of the ASTM D859 method of the heteropoly blue method. The reaction between silica and reagent causes a blue tint in the sample|
|HI 93703-50||Solution for Cleaning Cuvets|
|HI 710009||Shockproof Boot, Blue|
|HI 710010||Shockproof Boot, Orange|
|HI 731318||Tissue for Wiping Cuvets|
|HI 731321||Glass Cuvet for HI 937xx & HI 832xx Series Meters|
|HI 731325||Cuvet Cap Turbidity Meters & HI 937xx Series Meters|
|Reagents & Standards|
|HI 93750-01||Potassium, Turbidimetric Method (100 Tests)|
|HI 93750-03||Potassium, Turbidimetric Method (300 Tests)|