Hanna Instruments HI 93707 Instruction Manual

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Instruction ManualHI 93707Nitrite Low Range ISMHANNA instruments® reserves the right to modify the design,construction and appearance of its products without advance notice.HI 93707 is warranted for two years against defects inworkmanship and materials when used for its intended purpose andmaintained according to instructions.This warranty is limited to repair or replacement free of charge.Damages due to accident, misuse, tampering or lack of prescribedmaintenance are not covered.If service is required, contact the dealer from whom you purchasedthe instrument. If under warranty, report the model number, date ofpurchase, serial number and the nature of the failure. If the repairis not covered by the warranty, you will be notified of the chargesincurred. If the instrument is to be returned to Hanna Instruments,first obtain a Returned Goods Authorization Number from theCustomer Service department and then send it with shipment costsprepaid. When shipping any instrument, make sure it is properlypackaged for complete protection.To validate your warranty, fill out and return the enclosed warrantycard within 14 days from the date of purchase.All rights are reserved. Reproduction in whole or in part is prohibitedwithout the written consent of the copyright owner, Hanna InstrumentsInc., Woonsocket, Rhode Island, 02895 , USA.Dear Customer,Thank you for choosing a Hanna product. This manual willprovide you with the necessary information for the correctoperation of the meter. Please read it carefully before usingthe meter. If you need additional technical information, donot hesitate to e-mail us at tech@hannainst.com.This instrument is in compliance with directives.Remove the instrument from the packing material and examineit carefully to make sure that no damage has occurred duringshipment. 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 CapNote: Conserve all packing material until the instrument hasbeen observed to function correctly. Any defective itemmust be returned in its original packing.The HI 93707 meter measures the nitrite nitrogen (NO2–––––-N)content in water and wastewater in the 0.00 to 0.35 mg/L(ppm) range.The meter uses an exclusive positive-locking system to ensurethat the cuvet is in the same place every time it is placed intothe measurement cell.The reagent is in powder form and is supplied in packets. Theamount of reagent is precisely dosed to ensure maximumrepeatability.Display codes aid the user in routine operations.The meters have an auto-shut off feature that will turn theinstrument off after 10 minutes of non-use.SPECIFICATIONSRange 0.00 to 0.35 mg/LResolution 0.01 mg/LAccuracy ±0.02 mg/L ±4% of readingTypical EMC ±0.01 mg/LDeviationLight Source Light Emitting Diode @ 470 nmMethod Adaptation of the EPA method 354.1.The reaction between nitrite and thereagent causes a pink tint in the sampleLight Detector Silicon PhotocellEnvironment 0 to 50°C (32 to 122°F);max 95% RH non-condensingBattery Type/Life 1 x 9 volt/40 hoursAuto-Shut off After 10' of non-useDimensions 180 x 83 x 46 mm(7.1 x 3.3 x 1.8")Weight 290 g (10 oz.).REQUIRED REAGENTSCode Description QuantityHI 93707-0 Nitrite LR Reagent 1 packetREAGENT SETSHI 93707-01 Reagents for 100 testsHI 93707-03 Reagents for 300 testsIST93707R2 01/07WarrantyPreliminary ExaminationGeneral DescriptionSpecifications Display Code GuideThis Instrument is inCompliance with the CE Directiveswww.hannainst.comThis indicates that the meter is in aready state and zeroing can beperformed.Sampling in Progress. This promptappears each time the meter isperforming a measurement.This indicates that the meter is in azeroed state and measurement can beperformed.A zero reading was not taken. Insert asample before adding reagent andpress ZERO.Under range. A blinking "0.00"indicates that the sample absorbs lesslight than the zero reference. Checkthe procedure and make sure you usethe same cuvet for reference (zero) andmeasurement.Over range. A flashing value higherthan the maximum concentrationreadable (see specifications) indicatesthat the sample absorbs too much light,meaning that the concentration is toohigh. Dilute the sample.Light over range. The cuvet is notinserted correctly and an excess ambientlight is reaching the detector. If thecover is properly installed, then contactyour dealer or the nearest HannaCustomer Service Center.Light under range. The zero sample istoo dark for proper zeroing. If this isnot the case, contact your dealer or thenearest Hanna Customer ServiceCenter.The "V" indicates that the batteryvoltage is getting low and the batteryneeds to be replaced.This indicates that the battery is deadand must be replaced.Note: once this indication is displayed,the meter will lockup. Change thebattery to restart.

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