1. Introduzione
The Oakton WD-35413-00 Instruments Series pH/CON 700 Benchtop Meter is a versatile laboratory instrument designed for precise measurement of pH, conductivity, and temperature. This meter is supplied with a pH electrode, a conductivity/temperature probe, and an electrode stand, operating on 110/220 VAC. It is engineered for reliable performance in various scientific and industrial applications.

Figure 1: Oakton WD-35413-00 pH/CON 700 Benchtop Meter setup, showing the main unit, electrode stand, pH electrode, and conductivity/temperature probe immersed in a beaker.
2. Installazione e assemblaggio
Proper setup ensures accurate measurements and extends the life of your instrument. Follow these steps for initial assembly:
- Disimballaggio: Carefully remove all components from the packaging. Verify that all items listed in the packing list are present: the pH/CON 700 meter, pH electrode, conductivity/temperature probe, electrode stand, and power adapter.
- Positioning the Meter: Place the meter on a stable, level surface away from direct sunlight, heat sources, and strong electromagnetic fields.
- Assembling the Electrode Stand:
- Attach the base of the stand to the main support rod.
- Secure the electrode holder arm to the support rod at a suitable height.
- Ensure the stand is stable and can securely hold the electrodes.
- Connecting Electrodes and Probes:
- Connect the pH electrode to the designated BNC connector on the back of the meter.
- Connect the conductivity/temperature probe to its respective port.
- Carefully place the electrodes into the electrode holder on the stand.
- Collegamento elettrico: Connect the provided 110/220 VAC power adapter to the meter's power input and then to a suitable power outlet.
- Accensione iniziale: Premere il pulsante di accensione (⑂) to turn on the meter. The display should illuminate.
3. Istruzioni per l'uso
This section outlines the basic operation for pH and conductivity measurements.
3.1. Misurazione del pH
- Preparazione: Rinse the pH electrode with distilled water and gently blot dry with a lint-free tissue.
- Calibrazione:
- Premere il tasto MODALITÀ pulsante per selezionare la modalità pH.
- Premere il tasto CAL/MEAS pulsante per accedere alla modalità di calibrazione.
- Immerse the pH electrode into the first pH buffer solution (e.g., pH 7.00). Wait for the reading to stabilize.
- Premere ENTER/RANGE per confermare il punto di calibrazione.
- Rinse the electrode and repeat for subsequent buffer solutions (e.g., pH 4.01 and pH 10.00).
- Once calibration is complete, the meter will return to measurement mode.
- Sample Misurazione:
- Rinse the calibrated pH electrode with distilled water.
- Immergere l'elettrodo nella sample solution. Ensure the electrode junction is fully submerged.
- Allow the reading to stabilize. The pH value and temperature will be displayed.
- Premere PRESA per bloccare la lettura corrente sul display. Premere di nuovo per rilasciare.
3.2. Misurazione della conducibilità
- Preparazione: Rinse the conductivity/temperature probe with distilled water.
- Calibrazione:
- Premere il tasto MODALITÀ button to select Conductivity mode.
- Premere il tasto CAL/MEAS pulsante per accedere alla modalità di calibrazione.
- Immerse the probe into a standard conductivity solution (e.g., 1413 µS/cm). Wait for the reading to stabilize.
- Premere ENTER/RANGE per confermare il punto di calibrazione.
- Rinse the probe and repeat for other standard solutions if multi-point calibration is desired.
- Sample Misurazione:
- Rinse the calibrated conductivity probe with distilled water.
- Immergere la sonda nel sample solution. Ensure the probe tip is fully submerged and free of air bubbles.
- Allow the reading to stabilize. The conductivity value and temperature will be displayed.
4. Manutenzione
Regular maintenance ensures the longevity and accuracy of your Oakton pH/CON 700 meter.
- Pulizia degli elettrodi:
- After each use, rinse electrodes and probes thoroughly with distilled or deionized water.
- For stubborn deposits, consult the electrode's specific cleaning instructions.
- Conservazione degli elettrodi:
- Store pH electrodes in a proper storage solution or pH 4 buffer. Never store dry.
- Conductivity probes can typically be stored dry after rinsing.
- Pulizia del contatore: Pulisci l'esterno del contatore con un pannoamp cloth. Do not use abrasive cleaners or solvents. Ensure no liquid enters the meter casing.
- Frequenza di calibrazione: Calibrate the meter regularly, ideally before each measurement session or when high accuracy is required. Calibration frequency depends on usage and sample characteristics.
5. Risoluzione Dei Problemi
Fare riferimento a questa sezione per problemi comuni e le loro possibili soluzioni.
| Problema | Possibile causa | Soluzione |
|---|---|---|
| Unstable pH readings | Dirty electrode; air bubbles; electrode not conditioned; expired buffer. | Clean electrode; ensure no air bubbles; recondition electrode; use fresh buffer. |
| Letture del pH imprecise | Improper calibration; faulty electrode; temperature not compensated. | Recalibrate with fresh buffers; replace electrode; ensure ATC probe is connected and functioning. |
| No conductivity reading | Probe not connected; damaged probe; air bubbles in probe cell. | Check probe connection; replace probe; tap probe to dislodge bubbles. |
| Il misuratore non si accende | Power adapter disconnected; faulty power outlet. | Controllare i collegamenti elettrici; provare una presa diversa. |
6. Specifiche
Key technical specifications for the Oakton WD-35413-00 pH/CON 700 Benchtop Meter:
- Numero modello: WD-35413-00
- Produttore: Quercia
- Dimensioni della confezione: 10 x 8 x 8 pollici
- Peso del pacco: 5 libbre
- Requisiti di potenza: 110/220 VAC (via supplied adapter)
- Componenti inclusi: pH Electrode, Conductivity/Temperature Probe, Electrode Stand
- Prima data disponibile: 7 marzo 2013
7. Garanzia e supporto
For warranty information and technical support, please refer to the official Oakton webo contattare il distributore autorizzato. Conservare la ricevuta d'acquisto come prova d'acquisto per eventuali reclami in garanzia.
For further assistance, you may contact Oakton customer service directly. Contact details are typically available on the manufacturer's official websito.





