1. Ọja Ipariview
The Hanna Instruments Marine Ammonia Checker HI784 is a compact, digital colorimeter designed for precise and rapid measurement of ammonia levels in marine (saltwater) samples. This device simplifies water quality testing by providing a clear digital readout, eliminating the need for visual color matching found in traditional chemical test kits.

Figure 1: The Hanna Marine Ammonia Checker HI784. This compact yellow device features a digital screen displaying "1.05" and "Ammonia" below it, indicating a measurement of 1.05 ppm ammonia. A single black button is located at the bottom for operation.
2. Key Awọn ẹya ara ẹrọ
- Ipese Ipese: Provides more accurate results compared to traditional chemical test kits.
- Ise Olore-olumulo: Features single-button operation for ease of use.
- Ko Ifihan kuro: Equipped with a large LCD screen for easy readability of measurements.
- Imudara Agbara: Includes an auto shut-off function to conserve battery life.
- Dedicated Parameter: Specifically designed for measuring ammonia (NH3) in marine environments.
- Aago Iṣọkan: Built-in timer ensures precise reaction times for accurate results.
- Iwọn Iwọn: Capable of measuring ammonia from 0.00 to 2.50 ppm (mg/L) NH3.
3. Ni ibẹrẹ Oṣo
Before using your HI784 Marine Ammonia Checker, ensure it is properly set up.
3.1 Fifi sori batiri
The device requires 1 AAA battery, which is included. To install or replace the battery:
- Wa ideri iyẹwu batiri ni ẹhin ẹrọ naa.
- Yọ ideri kuro.
- Insert one AAA battery, observing the correct polarity (+/-).
- Rọpo ideri iyẹwu batiri ni aabo.
3.2 Ngbaradi fun Idiwọn
Ensure you have all necessary reagents and clean cuvettes ready before beginning the measurement process.
4. Awọn ilana Iṣiṣẹ
Follow these steps carefully to ensure accurate ammonia measurements.
4.1 Ilana wiwọn
- Sample Igbaradi: Rii daju pe omi sample does not contain any debris. Prepare the sample cuvette immediately after collecting the sample lati ojò.
- Afikun Reagent: Hold dropper bottles completely vertically and squeeze slowly to ensure correct drop size when adding reagents.
- Cuvette Handling: Whenever the cuvette is placed into the checker, it must be dry on the outside and free of fingerprints, oil, and dirt. Wipe the cuvette thoroughly with a microfiber cleaning cloth prior to insertion.
- Avoid Bubbles: Shaking the cuvette can generate bubbles, which may cause higher readings. To obtain accurate measurements, remove such bubbles by swirling or gently tapping the cuvette.
- Àkókò: Maa ṣe jẹ ki awọn reacted sample stand too long after reagent has been added, as accuracy will be affected. The built-in timer will guide you through reaction times.
- Kika: Follow the specific instructions provided with your reagent kit for the exact steps to take a reading.
- Idasonu: Jabọ awọn sample immediately after the reading has been taken to prevent permanent staining of the glass cuvette.
Always refer to the specific instructions on the reagent packaging or in the full user manual for additional directions and precautions.
5. Itọju
5.1 Ninu
- Regularly clean the outside of the checker with a soft, damp asọ.
- Ensure the cuvette is always clean and free of scratches, dirt, or fingerprints, as these can interfere with light path and affect readings. Use a microfiber cloth for cleaning cuvettes.
- Ma ṣe lo abrasive ose tabi epo.
5.2 Ibi ipamọ
Store the HI784 checker in a cool, dry place away from direct sunlight and extreme temperatures. Keep reagents properly sealed and stored according to their specific instructions.
6. Laasigbotitusita
If you encounter issues with your HI784 checker, consider the following common solutions:
- Awọn kika ti ko pe:
- Ensure cuvettes are clean, dry, and free of scratches or fingerprints.
- Verify correct reagent addition and reaction times.
- Check for air bubbles in the sample after reagent addition; gently tap to remove.
- Rii daju pe sample does not contain debris.
- Awọn oran Ifihan:
- Ṣayẹwo ipele batiri ki o rọpo ti o ba jẹ dandan.
- Ensure the battery is installed with correct polarity.
- Ẹrọ Ko Dahun:
- Rọpo batiri naa.
- Rii daju pe yara batiri ti wa ni pipade ni aabo.
If problems persist, contact Hanna Instruments customer support for further assistance.
7. Imọ ni pato
| Paramita | Sipesifikesonu |
|---|---|
| Awoṣe | HI784 |
| Iwọn Iwọn | 0.00 to 2.50 ppm (mg / L) NH3 |
| Iwọn Nkan | 1.08 poun (isunmọ 0.49 kg) |
| Olupese | Hanna Instruments |
| ASIN | B0B4463YTX |
| Awọn batiri | 1 Batiri AAA (pẹlu) |
| Awọn iwọn Package Nkan | 9.25 x 6.5 x 2.68 inches |
| Àwọ̀ | Yellow |
| Size (Device) | 86.0 x 61.0 x 37.5 mm |
| Liquid Volume (Reagent) | 0.7 Milliliters (per test, typically) |
| Fọọmu Nkan | Liquid (Reagent) |
8. Atilẹyin ọja ati Support
For warranty information, technical support, or service inquiries, please contact Hanna Instruments directly. Refer to the official Hanna Instruments website or the product packaging for specific warranty terms and contact details.
Hanna Instruments Webojula: www.hannainst.com





