1. Uvod
This manual provides essential information for the safe and efficient operation of your GREISINGER GMH 3531 pH/Redox/Temperature Meter. Please read these instructions carefully before using the device and keep them for future reference. The GMH 3531 is designed for precise measurement of pH, Redox potential, and temperature in various applications.
2. Varnostna navodila
- Always operate the device within the specified environmental conditions.
- Naprave ne izpostavljajte ekstremnim temperaturam, vlagi ali neposredni sončni svetlobi.
- Izogibajte se padcem ali izpostavljanju naprave močnim udarcem.
- Only use original accessories and probes supplied or approved by GREISINGER.
- Naprave ne poskušajte odpirati ali popravljati sami. Vsa servisna dela prepustite pooblaščenemu osebju.
- Napravo in njene dodatke hranite izven dosega otrok.
- Baterije in napravo zavrzite v skladu z lokalnimi predpisi.
3. Vsebina paketa
Po razpakiranju preverite, ali so vsi spodaj navedeni predmeti prisotni in nepoškodovani:
- GREISINGER GMH 3531 pH/Redox/Temperature Meter
- Navodila za uporabo
- pH electrode (if included in specific model variant)
- Temperature probe (if included in specific model variant)
- Baterije (vgrajene ali ločene)

Image: The GREISINGER GMH 3531 pH/Redox/Temperature Meter, showing its compact design and display. This image illustrates the main unit of the device.
4. Nastavitev
4.1. Namestitev baterije
- Odprite pokrov predalčka za baterije, ki se nahaja na zadnji strani naprave.
- Vstavite navedene baterije in pazite na pravilno polarnost (+/-).
- Trdno zaprite pokrov prostora za baterije.
4.2. Priključek sonde
- Connect the pH electrode to the designated BNC connector on the device. Ensure a firm connection.
- Connect the temperature probe to its dedicated input jack.
- Ensure all connections are clean and dry before use.
5. Navodila za uporabo
5.1. Vklop/izklop
Pritisnite VKLOP/IZKLOP button to power on the device. Press and hold the VKLOP/IZKLOP button for approximately 3 seconds to power off.
5.2. Umerjanje
Regular calibration is crucial for accurate measurements. Refer to the specific calibration procedure for pH and Redox measurements outlined below.
5.2.1. Umerjanje pH
- Prepare fresh pH buffer solutions (e.g., pH 4.00, 7.00, 10.00).
- Rinse the pH electrode thoroughly with distilled water and blot dry.
- Immerse the electrode in the first buffer solution (e.g., pH 7.00).
- Enter calibration mode as per the device's menu.
- Follow on-screen prompts to confirm the buffer value.
- Repeat for subsequent buffer solutions.
5.2.2. Redox Calibration
Redox electrodes typically do not require calibration in the same way as pH electrodes. However, their functionality can be checked using a known Redox test solution.
5.3. Izvajanje meritev
- Ensure the device is calibrated.
- Rinse the probe(s) with distilled water and blot dry.
- Immerse the probe(s) into the sample solution. Ensure the sensing part of the probe is fully submerged.
- Pustite, da se odčitek na zaslonu stabilizira.
- Record the measurement.
- After measurement, rinse the probe(s) thoroughly and store according to maintenance guidelines.
6. Vzdrževanje
6.1. Čiščenje naprave
Wipe the device housing with a soft, damp krpo. Ne uporabljajte abrazivnih čistil ali topil. Pazite, da v odprtine naprave ne pride tekočina.
6.2. Probe Care and Storage
- pH elektroda: Always keep the pH electrode wet. Store it in a suitable storage solution (e.g., 3M KCl solution or pH 4 buffer). Never store in distilled water.
- Redoks elektroda: Store in a suitable storage solution or distilled water if not used for extended periods.
- Temperaturna sonda: Clean with distilled water after each use.
- Regularly inspect probes for damage or contamination.
6.3. Zamenjava baterije
Baterije zamenjajte, ko se na zaslonu prikaže indikator nizke napolnjenosti baterij. Za navodila za namestitev baterij glejte poglavje 4.1.
7. Odpravljanje težav
| Težava | Možen vzrok | rešitev |
|---|---|---|
| Ni zaslona/Naprava se ne vklopi | Prazne ali nepravilno nameščene baterije | Preverite polarnost baterij; zamenjajte baterije. |
| Nestabilni odčitki | Dirty or damaged probe; insufficient immersion; air bubbles; incorrect calibration | Clean probe; ensure proper immersion; remove air bubbles; recalibrate. |
| Incorrect pH readings | Expired buffer solutions; dirty/damaged pH electrode; incorrect calibration | Use fresh buffer solutions; clean/replace electrode; recalibrate. |
| Sporočilo »Napaka« na zaslonu | Probe fault; internal device error | Check probe connection and condition. If error persists, contact support. |
8. Specifikacije
| Parameter | Vrednost |
|---|---|
| Model | GMH 3531 (603925) |
| Measurement Range pH | Typically 0.00 to 14.00 pH |
| Measurement Range Redox | Typically -1999 to +1999 mV |
| Measurement Range Temperature | Typically -5.0 to +100.0 °C |
| Natančnost pH | ±0.02 pH (depending on probe) |
| Natančnost Temperatura | ±0.2 °C (depending on probe) |
| Napajalnik | Battery operated (e.g., 9V block battery or AA batteries) |
| Teža | 170 Grams (without probes) |
Note: Specific ranges and accuracies may vary slightly based on the exact probe used and environmental conditions. Refer to your probe's documentation for detailed specifications.
9. Garancija in podpora
9.1. Informacije o garanciji
GREISINGER products are manufactured to high quality standards. This device comes with a standard manufacturer's warranty against defects in materials and workmanship. The warranty period typically begins from the date of purchase. Please retain your proof of purchase for warranty claims. For detailed warranty terms and conditions, please refer to the official GREISINGER webspletnega mesta ali se obrnite na lokalnega distributerja.
9.2. Tehnična podpora
Should you encounter any issues not covered in the troubleshooting section, or require further assistance, please contact GREISINGER technical support or your authorized dealer. Provide your model number (GMH 3531) and a detailed description of the problem when seeking support.
GREISINGER Contact Information:
Official GREISINGER Webmesto





