Manual d'usuari del colorímetre d'alcalinitat per a aquaris d'aigua salada de rang baix Hanna Instruments HI755 Checker HC

Introducció

The Hanna Instruments HI755 Checker HC (Handheld Colorimeter) offers a precise and efficient method for measuring alkalinity in saltwater aquariums. Alkalinity is vital in marine environments, supporting coral reef regeneration by providing carbonate ions and buffering against pH fluctuations. This device provides a more accurate and user-friendly alternative to traditional chemical test kits, delivering quick and reliable results.

Característiques principals:

Tancament automàtic: Extends battery life by automatically powering down when not in use.
Pantalla LCD gran: Ensures clear and easy readability of measurement results.
Funcionament d'un sol botó: Simplifies the testing process for user convenience.
Precisió millorada: Offers greater precision compared to standard chemical test kits.

Hanna Instruments HI755 Checker HC displaying a reading of 225 ppm Alkalinity

Imatge 1: The Hanna Instruments HI755 Checker HC, a handheld colorimeter, displaying an alkalinity reading of 225 ppm on its LCD screen. The device is blue with "Hanna Checker Marine" branding.

Configuració

Instal·lació de la bateria:
Locate the battery compartment on the back of the device. Open it and insert one AAA battery, ensuring correct polarity. Close the compartment securely.
Familiaritzar-se amb els components:
Identify the LCD display, the single operational button, and the cuvette holder. The cuvette holder is where the sample vials are placed for measurement.
Imatge 2: The Hanna Instruments HI755 Checker HC with its protective cap open, showing the internal cuvette holder where sample vials are inserted for testing. The device is blue and white.
Prepare Reagents and Vials:
Ensure you have the necessary HI755-series reagents and clean, dry sample vials (cuvettes) ready for testing. Refer to the reagent instructions for proper handling and storage.

Instruccions de funcionament

Follow these steps for accurate alkalinity measurements:

Encès: Press the button to turn on the Checker HC. The display will show "ADD C1".
Preparar Sample C1 (Blank):
Fill a clean cuvette with 10 mL of unreacted water sample. Cap the cuvette and wipe it thoroughly with a lint-free cloth to remove any water spots or fingerprints.
Insereix Sample C1:
Place the cuvette containing the unreacted sample into the Checker HC's holder and close the cap.
Zero the Instrument:
Press the button. The display will show "ADD C2" when the instrument is zeroed.
Preparar Sample C2 (Reacted Sample):
Remove the cuvette. Add the specified amount of HI755-series reagent to the sample in the cuvette, as per the reagent instructions. Cap the cuvette and gently invert it several times to mix. Wait for the reaction time specified in the reagent instructions (typically 1 minute).
Insereix Sample C2:
Wipe the reacted cuvette thoroughly with a lint-free cloth and place it back into the Checker HC's holder. Close the cap.
Prendre la mesura:
Press the button. The instrument will perform the measurement and display the alkalinity concentration in ppm (parts per million).
Apagar: The Checker HC will automatically shut off after a period of inactivity. To manually power off, press and hold the button until "OFF" is displayed.

Manteniment

Cleaning the Cuvettes: Always use clean cuvettes for each test. Rinse them thoroughly with deionized water and dry them completely before use.
Cleaning the Checker HC: Netegeu l'exterior del dispositiu amb un damp tela. No utilitzeu netejadors abrasius ni submergiu el dispositiu en aigua.
Emmagatzematge: Store the Checker HC in a cool, dry place away from direct sunlight and extreme temperatures. Ensure the battery is removed if the device will not be used for an extended period.
Reagent Storage: Store reagents according to their specific instructions to maintain their effectiveness.

Resolució de problemes

Problema	Causa possible	Solució
Inaccurate or Inconsistent Readings	Dirty or scratched cuvettes s impropiample preparation or mixing Expired or contaminated reagents Air bubbles in the cuvette Incorrect zeroing Oscil·lacions de temperatura	Ensure cuvettes are clean and free of scratches/fingerprints. Segueix sample and reagent instructions precisely. Use fresh, unexpired reagents. Gently tap cuvette to remove bubbles before reading. Re-zero the instrument with a fresh blank sample. Perform tests at a consistent room temperature.
Display Shows "Err" or Error Code	Measurement outside range Mal funcionament de l'instrument	Assegurar sample concentration is within the HI755's specified range. Refer to the full manual for specific error code meanings. Contacteu amb el servei d'atenció al client si el problema persisteix.
Device Does Not Power On	Bateria morta o instal·lada incorrectament	Substituïu la bateria AAA per una de nova. Comproveu la polaritat de la bateria.

Especificacions

Número de model: TE-HI755
Paràmetre: Alkalinity (Low Range)
Font d'alimentació: 1 x piles AAA
Fabricant: Hanna Instruments
ASIN: B00C2GWEL8
Dimensions del paquet: 7.52 x 4.92 x 2.72 polzades
Pes de l'article: 12.31 unces

Informació de la garantia

Hanna Instruments products are typically covered by a limited warranty against defects in materials and workmanship. For specific warranty terms and conditions applicable to your HI755 Checker HC, please refer to the warranty card included with your product or visit the official Hanna Instruments weblloc web. Conserveu el comprovant de compra per a reclamacions de garantia.

Atenció al client

For technical assistance, troubleshooting beyond this manual, or inquiries regarding your Hanna Instruments HI755 Checker HC, please contact Hanna Instruments customer support. Contact details can typically be found on the official Hanna Instruments weblloc o a l'embalatge del producte.

Recursos en línia: www.hannainst.com

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Hanna Instruments HI755