User manual HANNA INSTRUMENTS HI 93735

[. . . ] directives This instrument is in compliance with EN 50081-1 and EN 50082-1. SPECIFICATIONS REAGENT SETS HI 93735LR HI 93735MR HI 93735HR HI 93735-0 Reagents for 100 tests LR (0 to 250 ppm) Reagents for 100 tests MR (200 to 500 ppm) Reagents for 100 tests HR (400 to 750 ppm) Reagents for 100 tests (0 to 750 ppm) PRELIMINARY EXAMINATION Remove the instrument from the packing material and examine it carefully to make sure that no damage has occurred during shipment. Each Ion Specific Meter is supplied complete with · 9V Battery · Two Sample Cuvets and Caps · One Transport Cap · Instruction Manual Note: Conserve all packing material until the instrument has been observed to function correctly. Any defective item must be returned in its original packing. 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. [. . . ] 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 93735 meter measures the total hardness in drinking, surface and wastewater. 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 reagents are in liquid and powder form and are supplied in bottles and in packets. The amount of reagent is precisely dosed to ensure maximum repeatability. The meters have an auto-shut off feature that will turn the instrument off after 10 minutes of non-use. REQUIRED REAGENTS: Code HI 93735A-LR HI 93735A-MR HI 93735A-HR HI93735B HI93735C Description Hardness Indicator reagent LR Hardness Indicator reagent MR Hardness Indicator reagent HR Hardness Buffer reagent Fixing Reagent Quantity 9. 5mL/test 9. 5mL/test 9. 5mL/test 2 drops 1 packet OPERATIONAL GUIDE MEASUREMENT PROCEDURE · Turn the meter on by pressing ON/OFF. · The meter automatically defaults to Hardness Low Range (LR) measurement mode, with the "HARDNESS" and "LR" indications appearing on the LCD. Press the "RANGE" key to select the Medium Range (MR) or the High Range (HR) if needed. If the "RANGE" key is pressed while in HR mode, the meter returns to LR range. ON OFF · Press "ZERO/READ". During measurement the "bLn" indication will be shown, then "-0-" will appear. INTERFERENCES Interference may be caused by: Excessive amounts of heavy metals Note: if the sample is very acidic, some extra drops of HI93735B buffer reagent may be added. HI 93735LR HI 93735MR HI 93735HR HI 93735-0 ACCESSORIES REAGENT SETS Reagents for 100 tests LR (0 to 250 ppm) Reagents for 100 tests MR (200 to 500 ppm) Reagents for 100 tests HR (400 to 750 ppm) Reagents for 100 tests (0 to 750 ppm) TIPS FOR AN ACCURATE MEASUREMENT · Remove the cuvet and add the content of 1 packet of HI93735C fixing reagent. · Reinsert the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove. 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. [. . . ] · Place the cuvet into the holder and ensure that the notch on the cap is positioned securely into the groove. CE DECLARATION OF CONFORMITY · The instrument directly displays the hardness in ppm of CaCO3 on the Liquid Crystal Display. · Press the "UNIT" key repeatedly to have the reading converted in °f, °D and °E respectively. BATTERY REPLACEMENT Battery replacement must only take place in a non-hazardous area using a 9V alkaline battery. Detach the 9V battery from the terminals and attach a fresh 9V battery while paying attention to the correct polarity. Replace the battery and the cover. SLIDE OFF The conversion factors are as follows: 1 ppm = 0. 1 °f = 0. 05556 °D = 0. 07 °E · Press the "RANGE" key to have the meter ready for the next 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. [. . . ]