Hanna Instruments HI715 Instruction Manual

Hanna Instruments HI715 Instruction Manual Manual pdf 2 page image

• Turn the meter on by pressing the button. Allsegments will be displayed. When the displayshows “Add”, “C.1” with “Press” blinking, themeter is ready.• Fill the cuvette with 10 mL of unreacted sampleand replace the cap. Place the cuvette into themeter and close the meter’s cap.• Press the button. When the display shows“Add”, “C.2” with “Press” blinking the meteris zeroed.• Remove the cuvette from the meter and unscrewthe cap. Add 4 drops of HI715A-0 reagent A.Replace the cap and swirl the solution.• Unscrew the cap and add 4 drops of HI715B-0reagent B. Replace the cap and swirl thesolution. Place the cuvette back into the meter.• Press and hold the button until the timer isdisplayed on the LCD (the display will showthe countdown prior to the measurement)or, alternatively, wait for 3 minutes and30 seconds and press the button.• The instrument displays the results in mg/L(ppm) of ammonia nitrogen (NH3-N). To convertthe reading to ppm of ammonia (NH3), multiplythe reading by factor of 1.214. The meterautomatically turns off after 10 minutes.Measurement ProcedureHanna Instruments reserves the right to modify the design, construction or appearance ofits products without advance notice.CoverCuvette with capCuvette holderLCD Liquid Crystal DisplayOperation ButtonFunctional DescriptionErrors and WarningsLight High: There is too much light to perform a measurement. Pleasecheck the preparation of the zero cuvette.Light Low: There is not enough light to perform a measurement. Pleasecheck the preparation of the zero cuvette.Inverted Cuvettes: The sample and the zero cuvette are inverted.Under Range: A blinking “0.00” indicates that the sample absorbs lesslight than the zero reference. Check the procedure and make sure you usethe same cuvette for reference (zero) and measurement.Over Range: A flashing value of the maximum concentration indicatesthe reading is over range. Dilute the sample and re-run the test.Battery Low: The battery must be replaced soon.Dead Battery: This indicates that the battery is dead and must bereplaced. Once this indication is displayed, normal operation of theinstrument will be interrupted. Change the battery and restart the meter.Thank YouThank you for choosing a Hanna Instruments product. Please read this instructionmanual carefully before using the instrument.For more information about Hanna Instruments and our products, visitwww.hannainst.com.For technical support, contact your local Hanna Instruments Office or e-mail us attech@hannainst.com.Find your local Hanna Instruments Office on www.hannainst.com.Please examine this product carefully. Make sure that the instrument is not damaged. Ifany damage occurred during shipment, please contact your local Hanna Instruments Office.Each HI715 meter is supplied complete with:• Sample Cuvettes and Caps (2 pcs.)• Reagents for 25 tests• 1.5V AAA Battery (1 pc.)• Instruction Manual and Quick Reference GuidePreliminary ExaminationRange 0.00 to 9.99 ppm NH3-NResolution 0.01 ppmAccuracy ±0.05 ppm ±5% of reading @25 °C/77 °FLight Source Light Emitting Diode @470 nmLight Detector Silicon PhotocellMethodAdaptation of the ASTM Manual of Water and EnvironmentalTechnology, D1426, Nessler Method. The reaction between ammo-nia and reagents causes a yellow tint in the sample.Environment 0 to 50 °C (32 to 122 °F); max 95% RH non-condesingBattery Type 1.5V AAA (1 pc.)Auto-Shut off After 10 minutes of non-useDimensions 86.0 x 61.0 x 37.5 mm (3.4 x 2.4 x 1.5”)Weight 52 g (1.84 oz.)Specifications

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