Hanna Instruments HI 93722 Instruction Manual

http://www.hannainst.com This Instrument is in Compliance with the CE Directives Hanna Instruments reserves the right to modify the design, construction and appearance of its products without advance notice. WARRANTY WARRANTY WARRANTY WARRANTY WARRANTY HI 93722 is warranted for two years against defects in workman- ship and materials when used for its intended purpose and maintained according to instructions. This warranty is limited to repair or replacement free of charge. Damages due to accident, misuse, tampering or lack of prescribed maintenance are not covered. If service is required, contact the dealer from whom you purchased the instrument. If under warranty, report the model number, date of pur- chase, 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 de- partment and then send it with shipment costs prepaid. When shipping any instrument, make sure it is properly packaged for complete protec- tion. To validate your warranty, fill out and return the enclosed warranty card within 14 days from the date of purchase. All rights are reserved. Reproduction in whole or in part is prohibited without the written consent of the copyright owner, Hanna Instru- ments Inc., Woonsocket, Rhode Island, 02895 , USA. Dear Customer, Thank you for choosing a Hanna product. This manual will provide you with the necessary information for the correct operation of the meter. Please read it carefully before using the meter. If you need additional technical information, do not hesitate to e-mail us at [email protected]. This instrument is in compliance with directives EN 50081-1 and EN 50082-1. Remove the instrument from the packing material and examine it carefully to make sure that no damage has occurred during shipment. If there is any damage, notify your Dealer. Each Ion Specific Meter is supplied complete with • 9V Battery • Two Sample Cuvets and Caps • One Transport Cap Note: Conserve all packing material until the instrument has been observed to function correctly. Any defective item must be returned in its original packing. PRELIMINARY EXAMINATION PRELIMINARY EXAMINATION PRELIMINARY EXAMINATION PRELIMINARY EXAMINATION PRELIMINARY EXAMINATION GENERAL DESCRIPTION GENERAL DESCRIPTION GENERAL DESCRIPTION GENERAL DESCRIPTION GENERAL DESCRIPTION The HI 93722 meter measures the cyanuric acid content in water and wastewater in the 0 to 80 mg/L (ppm) 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 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. Display codes aid the user in routine operations. The meters have an auto-shut off feature that will turn the instrument off after 10 minutes of non-use. SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS Range 0 to 80 mg/L Resolution 1 mg/L Accuracy ±1 mg/L ±15% of reading Typical EMC ±1 mg/L Deviation Light Source Light Emitting Diode @ 555 nm Method Adaptation of the turbidimetric method. The reaction between cyanuric acid and the reagent causes a white suspension in the sample 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 REAGENTS Code Description Quantity HI 93722-0 Powder reagent 1 packet REAGENT SETS HI 93722-01 Reagents for 100 tests HI 93722-03 Reagents for 300 tests ZERO CUVET HOLDER CUVET ALIGNMENT INDICATOR ON/OFF ins e rum ns ON OFF ZERO READ TIMED READ DIRECT HI 93722 CYANURIC ACID Range: 0...80 ppm READ TIMED READ DIRECT This indicates that the meter is in a ready state and zeroing can be per- formed. Sampling in Progress. This prompt ap- pears each time the meter is performing a measurement. This indicates that the meter is in a zeroed state and measurement can be performed. A zero reading was not taken. Insert a sample before adding reagent and press ZERO. Under range. A blinking "0.00" indicates that the sample absorbs less light than the zero reference. Check the procedure and make sure you use the same cuvet for reference (zero) and measurement. Over range. A flashing value higher than the maximum concentration readable (see specifications) indicates that the sample absorbs too much light, meaning that the concentration is too high. Dilute the sample. Light over range. The cuvet is not in- serted correctly and an excess ambient light is reaching the detector. If the cover is properly installed, then contact your dealer or the nearest Hanna Customer Service Center. Light under range. The zero sample is too dark for proper zeroing. If this is not the case, contact your dealer or the nearest Hanna Customer Service Center. The "V" indicates that the battery volt- age is getting low and the battery needs to be replaced. This indicates that the battery is dead and must be replaced. Note: once this indication is displayed, the meter will lockup. Change the bat- tery to restart. DISPLAY CODE GUIDE DISPLAY CODE GUIDE DISPLAY CODE GUIDE DISPLAY CODE GUIDE DISPLAY CODE GUIDE V

• When the LCD displays "- - -", it is ready. • Fill the cuvet up to 1.5 cm (¾") below the rim with 10 mL of sample and replace the cap. • Place the cuvet into the holder and ensure that the notch on the cap is positioned se- curely into the groove. • Press ZERO and "SIP" will appear on the display. • Wait for a few seconds and the dis- play will show "0". Now the meter is zeroed and ready for measurement. • Fill a beaker up to the 25 mL mark with the sample, add the content of one packet of HI 93722 reagent and stir gently to mix. • Fill a second cuvet with 10 mL of the reacted sample up to 1.5 cm (¾") below the rim. Replace the cap. • Reinsert the cuvet into the in- strument. 1.5 cm ZERO 1.5 cm • Press READ TIMED and the display will show the count- down prior to the measurement, or, alternatively wait for 45 seconds and press READ DIRECT. In both cases "SIP" will appear during measurement. • The instrument directly displays concentration in mg/L of cyanuric acid on the Liquid Crystal Display. READ TIMED 12 3 6 9 45" READ DIRECT The instruction listed below should be carefully followed during testing to ensure best accuracy. • Do not touch the cuvet walls with hands. • 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 important that the sample does not contain any debris. This would corrupt the readings. • 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. • It is important to discard the sample immediately after the reading is taken because the glass might become permanently stained. • Shaking the cuvet can generate bubbles in the sample, causing higher readings. To obtain accurate measure- ments, remove such bubbles by swirling or by gently tapping the vial. • All the reaction times reported in this manual are referred to 20°C (68°F). As a general rule of thumb, they should be doubled at 10°C (50°F) and halved at 30°C (86°F). TIPS FOR AN ACCURATE TIPS FOR AN ACCURATE TIPS FOR AN ACCURATE TIPS FOR AN ACCURATE TIPS FOR AN ACCURATE MEASUREMENT MEASUREMENT MEASUREMENT MEASUREMENT MEASUREMENT BATTERY REPLACEMENT BATTERY REPLACEMENT BATTERY REPLACEMENT BATTERY REPLACEMENT BATTERY REPLACEMENT Battery replacement must only take place in a non-hazard- ous area using a 9V alkaline battery. Simply slide off the battery cover on the back of the meter. Detach the battery from the terminals and attach a fresh 9V battery while paying attention to the correct polarity. Replace the battery and the cover. 9V SLIDE OFF Recommendations for Users Before using these products, make sure that they are entirely suitable for the environ- ment 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. Any variation introduced by the user to the supplied equipment may degrade the instruments' EMC performance. To avoid damages or burns, do not perform any measurement in microwave ovens. ACCESSORIES ACCESSORIES ACCESSORIES ACCESSORIES ACCESSORIES REAGENT SETS HI 93722-01 Reagents for 100 tests HI 93722-03 Reagents for 300 tests OTHER ACCESSORIES HI 710009 Blue rubber boot HI 710010 Orange rubber boot HI 721310 9V battery (10 pcs) HI 731318 Tissue for wiping cuvets (4 pcs) HI 731321 Glass cuvets (4 pcs) HI 731325 Caps for cuvets (4 pcs) HI 93703-50 Cuvets cleaning solution (230 mL). CE DECLARATION CE DECLARATION CE DECLARATION CE DECLARATION CE DECLARATION OF CONFORMITY OF CONFORMITY OF CONFORMITY OF CONFORMITY OF CONFORMITY IST93722R1 11/98 PRINTED IN PORTUGAL