User manual HANNA INSTRUMENTS HI 93727

[. . . ] directives This instrument is in compliance with EN 50081-1 and EN 50082-1. SPECIFICATIONS DISPLAY CODE GUIDE This indicates that the meter is in a ready state and zeroing can be performed. This indicates that the meter is in a zeroed state and measurement can be performed. A blinking "0. 00" indicates that the sample absorbs less light than the zero reference. [. . . ] If under warranty, report the model number, date of purchase, serial number and the nature of the failure. If the repair is not covered by the warranty, you will be notified of the charges incurred. If the instrument is to be returned to Hanna Instruments, first obtain a Returned Goods Authorization Number from the Customer Service department and then send it with shipment costs prepaid. When shipping any instrument, make sure it is properly packaged for complete protection. To validate your warranty, fill out and return the enclosed warranty card within 14 days from the date of purchase. Reproduction in whole or in part is prohibited without the written consent of the copyright owner, Hanna Instruments Inc. , Woonsocket, Rhode Island, 02895 , USA. Hanna Instruments reserves the right to modify the design, construction and appearance of its products without advance notice. The HI 93727 meter measures the true and apparent color in water and wastewater in the 0 to 500 PCU (Platinum Cobalt Units) range. The meter uses an exclusive positive-locking system to ensure that the cuvet is in the same place every time it is placed into the measurement cell. The meters have an auto-shut off feature that will turn the instrument off after 10 minutes of non-use. Light Emitting Diode @ 470 nm Adaptation of the Colorimetric Platinum Cobalt method Light Detector Silicon Photocell Environment 0 to 50°C (32 to 122°F); max 95% RH non-condensing Battery Type/Life 1 x 9 volt/40 hours Auto-Shut off After 10' of non-use Dimensions 180 x 83 x 46 mm (7. 1 x 3. 3 x 1. 8") Weight 290 g (10 oz. ). REQUIRED ACCESSORIES 0. 45 µm membrane for true color measurement. V OPERATIONAL GUIDE MEASUREMENT PROCEDURE · Turn the meter on by pressing ON/OFF. · Fill one cuvet up to 1. 5 cm (¾") below the rim with deionized water and replace the cap. · Fill another cuvet up to 1. 5 cm (¾") below the rim with unfiltered sample and replace the cap. This is the apparent color. 1. 5 cm ON OFF · Remove the blank, insert the apparent color cuvet into the instrument and ensure that the notch on the cap is positioned securely into the groove. · Press READ and "SIP" will appear on the display. TIPS FOR AN ACCURATE MEASUREMENT The instruction listed below should be carefully followed during testing to ensure best accuracy. · In order to maintain the same conditions during the zeroing and the measuring phases, it is necessary to close the cuvet to prevent any contamination. · Do not let the test sample stand too long after reagent is added or accuracy will be lost. · Whenever the cuvet is placed into the measurement cell, it must be completely free of fingerprints, oil or dirt. Wipe it thoroughly with HI 731318 or a lint-free cloth prior to insertion. · It is possible to take multiple readings in a row, but it is recommended that a zero reading be taken for each sample and that the same cuvet is used for zeroing and measurement. [. . . ] Replace the battery and the cover. 9V · Wait for a few seconds and the display will show "-0. 0-". Now the meter is zeroed and ready for measurement. Recommendations for Users Before using these products, make sure that they are entirely suitable for the environment in which they are used. Operation of these instruments in residential area could cause unacceptable interferences to radio and TV equipments, requiring the operator to take all necessary steps to correct interferences. [. . . ]