Introduzione
The Hanna Instruments HI-98107 pHep pH Tester is a compact and accurate device designed for precise pH measurements. This manual provides essential information for the proper setup, operation, maintenance, and troubleshooting of your pH tester, ensuring reliable performance and longevity.
Figura 1: Fronte view of the Hanna Instruments HI-98107 pHep pH Tester, showing the display and control buttons.
Impostare
1. Disimballaggio e ispezione iniziale
Carefully remove the pH tester and all accessories from the packaging. Verify that all components are present and undamaged. The standard package typically includes:
- HI-98107 pHep pH Tester
- Cappuccio protettivo
- Calibration buffer solutions (e.g., pH 4.01 and pH 7.01 sachets)
- Bustina di soluzione detergente per elettrodi
- Storage solution sachet
- CR2032 Lithium Metal battery (pre-installed or separate)
- Manuale di istruzioni (questo documento)
2. Installazione della batteria
The HI-98107 pHep pH Tester operates on a single CR2032 Lithium Metal battery. If the battery is not pre-installed or needs replacement, follow these steps:
- Locate the battery compartment cap on the top of the tester.
- Twist the cap counter-clockwise to remove it.
- Inserire la batteria CR2032 con il lato positivo (+) rivolto verso l'alto.
- Richiudere il coperchio del vano batteria e ruotarlo in senso orario per fissarlo.
Figura 2: View of the battery compartment on the Hanna Instruments HI-98107 pHep pH Tester, showing the CR2032 battery slot.
3. Initial Electrode Preparation
Before first use, or after prolonged storage, the electrode requires preparation:
- Remove the protective cap from the bottom of the tester.
- Rinse the electrode tip with distilled or deionized water. Do not wipe the electrode.
- If the electrode appears dry, soak it in Hanna Instruments HI70300 storage solution for at least 30 minutes to rehydrate the glass bulb.
Figura 3: primo piano view of the electrode tip on the Hanna Instruments HI-98107 pHep pH Tester, showing the glass bulb and reference junction.
Istruzioni per l'uso
1. Accensione/Spegnimento
- To turn the tester ON, premere il pulsante ON/OFF.
- To turn the tester SPENTO, press and hold the ON/OFF button until "OFF" appears on the display.
2. Misurazione del pH
For accurate readings, ensure the tester has been properly calibrated.
- Accendi il tester.
- Immergere la punta dell'elettrodo nel sample to be measured, ensuring the liquid level is above the reference junction.
- Stir gently and wait for the reading to stabilize. The pH value will be displayed on the LCD screen.
- After measurement, rinse the electrode thoroughly with distilled or deionized water before storing.
3. Calibrazione
Regular calibration is essential for maintaining the accuracy of your pH tester. It is recommended to calibrate at least once a week, or more frequently if high accuracy is required, or after measuring strong acids/bases.
- Prepare fresh buffer solutions (e.g., pH 4.01 and pH 7.01).
- Accendi il tester.
- Premere e tenere premuto il tasto CAL finché sul display non compare la scritta "CAL".
- Immerse the electrode into the pH 7.01 buffer solution. The tester will automatically recognize the buffer and calibrate. Wait for the "OK" message to appear.
- Sciacquare l'elettrodo con acqua distillata.
- Immerse the electrode into the pH 4.01 buffer solution. The tester will automatically recognize the buffer and calibrate. Wait for the "OK" message to appear.
- The tester is now calibrated and ready for use.
Nota: Always calibrate with fresh buffer solutions. Do not reuse buffer solutions as their pH value can change over time due to contamination or CO2 absorption from the air.
Manutenzione
1. Pulizia degli elettrodi
Regular cleaning of the electrode ensures optimal performance and extends its lifespan. If the electrode becomes sluggish or readings are inconsistent, clean it using a Hanna Instruments cleaning solution (e.g., HI7061).
- Sciacquare l'elettrodo con acqua distillata.
- Soak the electrode in the cleaning solution for 15-20 minutes.
- Rinse thoroughly with distilled water.
- Re-calibrate the tester before use.
2. Conservazione degli elettrodi
Proper storage is critical for the pH electrode. Never store the electrode dry.
- For short-term storage (up to a few days), replace the protective cap containing a few drops of HI70300 storage solution.
- For long-term storage, ensure the protective cap is filled with HI70300 storage solution and securely placed over the electrode.
- Non fare store the electrode in distilled or deionized water, as this will deplete the reference electrolyte and damage the electrode.
3. Sostituzione della batteria
When the battery indicator on the display shows low power, replace the CR2032 Lithium Metal battery as described in the "Battery Installation" section under Setup.
Risoluzione dei problemi
| Problema | Possibile causa | Soluzione |
|---|---|---|
| Tester does not turn on. | Batteria scarica o installata in modo non corretto. | Check battery orientation or replace with a new CR2032 Lithium Metal battery. |
| Letture imprecise o instabili. |
|
|
| "Err" message during calibration. | Incorrect buffer solution or electrode issue. | Ensure the correct buffer solution is used (e.g., 7.01 then 4.01). Clean and rehydrate the electrode, then attempt calibration again. If the problem persists, the electrode may need replacement. |
| Tempo di risposta lento. | Dirty or dehydrated electrode. | Clean the electrode and soak it in storage solution for at least 30 minutes to rehydrate. |
Specifiche
| Parametro | Valore |
|---|---|
| Numero di modello | HI-98107 (pHep) |
| Intervallo di pH | da 0.0 a 14.0 pH |
| Risoluzione del pH | PH 0.1 |
| Precisione del pH | ±0.1 pH |
| Compensazione della temperatura | Automatic (ATC) |
| Calibrazione | Automatic, one or two-point |
| Tipo di batteria | 1 x 3V CR2032 Lithium Metal |
| Durata della batteria | Circa 800 ore di utilizzo continuo |
| Dimensioni | 6.97 x 3.15 x 1.73 pollici (177 x 80 x 44 mm) |
| Peso | 3.53 once (100 g) |
| Produttore | Strumenti Hanna |
| Data prima disponibilità | 6 ottobre 2017 |
Garanzia e supporto
Hanna Instruments products are manufactured to high standards and are warranted against defects in materials and workmanship. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Hanna Instruments websito.
For technical support, troubleshooting assistance, or to inquire about replacement parts and accessories, please contact Hanna Instruments customer service directly. Contact information can typically be found on their official websito o sulla confezione del prodotto.
Hanna Instruments Ufficiale Websito: www.hannainst.com
