User manual HANNA INSTRUMENTS HI 3842

[. . . ] Instruction Manual SPECIFICATIONS Range 40 to 500 mg/L (ppm) CaCO3 Smallest Increment 20 mg/L (ppm) CaCO3 Analysis Method Drop count titration Sample Size 50 mL Number of Tests 50 (average) Case Dimensions 115x105x80 mm (4. 5x4. 1x3. 1") Shipping Weight 120 g (4. 2 oz. ) Note: To dose the right drops volume squeeze gently the reagent bottle. TABLE 2 CONVERSION DATA HI 3841 Hardness Medium Range Test Kit · Use the Conversion Table or calculate the Hardness: SIGNIFICANCE AND USE Historically, water hardness had been defined by the capacity of water to precipitate soap. [. . . ] Please read the instructions carefully before using the chemical test kit. It will provide you with the necessary information for a correct use of the kit. Remove the chemical test kit from the packing material and examine it carefully to make sure that no damage has occurred during shipping. If there is any noticeable damage, notify your Dealer or the nearest Hanna office immediately. Each kit is supplied with: · HI 3841-0 Hardness MR Reagent, 1 bottle (30 mL) with dropper; · 1 calibrated plastic vessel (50 mL). Note: Any damaged or defective item must be returned in its original packing materials. INSTRUCTIONS READ THE ENTIRE INSTRUCTIONS BEFORE USING THE KIT · Remove the cap from the plastic vessel. [. . . ] · Add drops of HI 3841-0 reagent until the color changes to pink and then to blue (titration end point), while swirling the sample after each drop and counting the drops needed to reach the end point. To measure: Hardness Low Range use HI 3840 Test Kit Hardness High Range use HI 3842 Test Kit [. . . ]