Potassium low range & medium range photometer (36 pages)
Summary of Contents for Hanna Instruments HI97771
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HI97771 Free Chlorine & Total Chlorine Ultra High Range Photometer...
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All rights are reserved. Reproduction in whole or in part is prohibited without the written consent of the copyright owner, Hanna Instruments Inc., Woonsocket, Rhode Island, 02895, USA.
• Instruction manual • Meter quality certificate • CAL Check standard certificate (2 pcs.) Each HI97771 is delivered in a cardboard box and is supplied with: • Sample cuvette (2 pcs.) • Sample cuvette cap (2 pcs.) • Plastic stopper (2 pcs.) •...
3. SPECIFICATIONS Range 0.00 to 5.00 mg/L (as Cl Resolution 0.01 mg/L Free Chlorine Accuracy ±0.03 mg/L ±3% of reading at 25 °C (Powder & Liquid) Adaptation of US EPA method 330.5, Method DPD Colori metric method Range 0 to 500 mg/L (as Cl Resolution 1 mg/L Total Chlorine...
National Institute of Standards and Technology 5. DESCRIPTION 5.1. GENERAL DESCRIPTION AND INTENDED USE HI97771 is an auto‑diagnostic portable meter that benefits from Hanna’s years of experience as a manufacturer of analytical instruments. It has an advanced optical system that uses a Light Emitting Diode (LED) and a narrow band interference filter that allows for accurate and repeatable readings.
5.2. FUNCTIONAL DESCRIPTION 1) ON/OFF power button 3) Liquid Crystal Display (LCD) 5) Indexing mark 2) Keypad 4) Cuvette holder 6) Battery cover Keypad Description The keypad contains 3 direct keys and 3 functional keys with the following functions: Press the functional keys to perform the function displayed above them on the LCD. Press and hold to power off/on.
5.3. PRECISION AND ACCURACY Precision is how closely repeated measurements are to one another. Precision is usually expressed as standard deviation (SD). Accuracy is defined as the closeness of a test result to the true value. Although good precision suggests good accuracy, precise results can be inaccurate.
5.5. OPTICAL SYSTEM Instrument Block Diagram The internal reference system (reference detector) of the HI97771 photometer compensates for any drifts due to power fluctuations or ambient temperature changes, providing a stable source of light for your blank (zero) measurement and sample measurement.
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To perform a CAL Check: 1. Press the key to enter menu. Use the keys to select CAL Check / Calibration and press Select. The “Not Available“ message or the date/time and status of the last CAL Check will be displayed on the screen.
‑ “OUT OF SPECIFICATION“ and the Calibration key is available: The measured value is near the expected value. To update the user calibration press Calibrate. Press Accept to confirm or Cancel to return to the previous screen. ‑ “OUT OF SPECIFICATION“: A user calibration is not allowed, the measured value is outside of the tolerance window.
Use the functional keys to highlight a log and press Info to view additional information about the log. From this screen the Next and Previous keys can be used to view other logs. Use the Delete key to erase logged data. After pressing Delete a prompt on display is asking for confirmation.
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Date / Time Press the Modify key to change the date/time. Press the keys to highlight the value to be modified (year, month, day, hour, minute or second). Press Edit to modify the highlighted value. Use the keys to change the value. Press the Accept key to confirm or the key to return to the previous screen.
Beeper Option: Enable or Disable When enabled, a short beep is heard every time a key is pressed. A long beep alert sounds when the pressed key is not active or an error is detected. Press the functional key to enable/disable the beeper. Tutorial Option: Enable or Disable When enabled, the user will be guided step‑by‑step...
6.6. CONTEXTUAL HELP HI97771 offers an interactive contextual help mode that assists the user at any time. To access the help screen press the key. The instrument will display additional information related to the current screen. To read all the available information, scroll the text using the ...
7. PHOTOMETER 7.1. METHOD SELECTION Press Methods when in measurement mode to access the list of methods. Use the keys to highlight the desired method then press Select. The selected method will be saved when the instrument is powered off. 7.2.
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(a) Invert the cuvette a couple of times or for a specified time: hold the cuvette in the vertical position. Turn the cuvette upside‑down and wait for all of the solution to flow to the cap end, then return the cuvette to the upright vertical position and wait for all of the solution to flow to the cuvette bottom.
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• Remove the cuvette. • Add the content of one packet of HI93701‑0 Free Chlorine Reagent. Replace the plastic stopper and the cap. Shake gently for 20 seconds. • Insert the cuvette into the holder and ensure that the notch on the cap is positioned securely in the groove. •...
8.2. FREE CHLORINE (LIQUID REAGENT) REQUIRED REAGENTS Code Description Quantity HI93701A‑F Free Chlorine Reagent A 3 drops HI93701B‑F Free Chlorine Reagent B 3 drops REAGENT SETS HI93701‑F Free Chlorine Reagent ‑ 300 tests For other accessories see page 25. MEASUREMENT PROCEDURE •...
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• Swirl gently to mix. • Add 10 mL of unreacted sample (up to the mark). Replace the plastic stopper and the 10 mL cap. Shake gently to mix. • Insert the cuvette into the holder and ensure that the notch on the cap is positioned securely in the groove.
8.3. TOTAL CHLORINE UHR REQUIRED REAGENTS Code Description Quantity HI95771A‑0 Total Chlorine UHR Reagent A 1 packet HI95771B‑0 Total Chlorine UHR Reagent B 1 packet REAGENT SETS HI95771‑01 Total Chlorine UHR Reagent ‑ 100 tests HI95771‑03 Total Chlorine UHR Reagent ‑ 300 tests For other accessories see page 25.
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• Add one packet of HI95771A‑0 Total Chlorine UHR Reagent A and one packet of HI95771B‑0 Total Chlorine UHR Reagent B. Replace the plastic stopper and the cap. Shake gently for 20 seconds. • Press the Read key and the display will show a 1 minute countdown prior to the measurement.
9. ERROR DESCRIPTIONS The instrument shows clear warning messages when erroneous conditions appear and when measured values are outside the expected range. These messages are described below. No Light: The light source is not functioning properly. Light Leak: There is an excess amount of ambient light reaching the detector.
(4 pcs.) HI731336N cap for cuvette (4 pcs.) HI97701‑11 CAL Check standards for free and total chlorine ‑ cuvette kit ® HI97771‑11 CAL Check standards for chlorine UHR ‑ cuvette kit ® HI93703‑50 cuvette cleaning solution (230 mL)
Certification All Hanna Instruments conform to the CE European Directives. Disposal of Electrical & Electronic Equipment. The product should not be treated as household waste. Instead hand it over to the appropriate collection point for the recycling of electrical and electronic equipment which will conserve natural resources.
(engraved on the bottom of the meter) and the nature of the problem. If the repair is not covered by the warranty, you will be notified of the charges incurred. If the meter is to be returned to Hanna Instruments, first obtain a Returned Goods Authorization (RGA) number from the Technical Service department and then send it with shipping costs prepaid.
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World Headquarters Hanna Instruments Inc. Highland Industrial Park 584 Park East Drive Woonsocket, RI 02895 USA www.hannainst.com Local Office Hanna Instruments Inc. Highland Industrial Park 584 Park East Drive Woonsocket, RI 02895 USA Phone: 800.426.6287 Fax: 401.765.7575 e‑mail: tech@hannainst.com MAN97771...