1. Produk Langkungview
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. Fitur konci
- Akurasi ditingkatkeun: Provides more accurate results compared to traditional chemical test kits.
- Operasi ramah-pamaké: Features single-button operation for ease of use.
- Jelas tampilan: Equipped with a large LCD screen for easy readability of measurements.
- Éfisiensi kakuatan: Includes an auto shut-off function to conserve battery life.
- Dedicated Parameter: Specifically designed for measuring ammonia (NH3) in marine environments.
- Timer terpadu: Built-in timer ensures precise reaction times for accurate results.
- Rentang pangukuran: Capable of measuring ammonia from 0.00 to 2.50 ppm (mg/L) NH3.
3. Setup Awal
Before using your HI784 Marine Ammonia Checker, ensure it is properly set up.
3.1 Pamasangan batré
The device requires 1 AAA battery, which is included. To install or replace the battery:
- Teang tempat panutup kompartemen batre dina tonggong alat.
- Cabut panutup.
- Insert one AAA battery, observing the correct polarity (+/-).
- Ganti panutup kompartemen batré aman.
3.2 Nyiapkeun Pangukuran
Ensure you have all necessary reagents and clean cuvettes ready before beginning the measurement process.
4. Parentah Operasi
Follow these steps carefully to ensure accurate ammonia measurements.
4.1 Prosedur Pangukuran
- Sample Persiapan: Pastikeun cai sample does not contain any debris. Prepare the sample cuvette immediately after collecting the sample ti tank.
- Panambahan réagen: 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.
- Waktos: Ulah ngantep s diréaksikeunample stand too long after reagent has been added, as accuracy will be affected. The built-in timer will guide you through reaction times.
- bacaan: Follow the specific instructions provided with your reagent kit for the exact steps to take a reading.
- pembuangan: Piceun 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. Pangropéa
5.1 beberesih
- Regularly clean the outside of the checker with a soft, damp lawon.
- 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.
- Ulah make cleaners abrasive atawa pangleyur.
5.2 Panyimpenan
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. Cara ngungkulan
If you encounter issues with your HI784 checker, consider the following common solutions:
- Bacaan teu akurat:
- Ensure cuvettes are clean, dry, and free of scratches or fingerprints.
- Verify correct reagent addition and reaction times.
- Pariksa gelembung hawa dina sample after reagent addition; gently tap to remove.
- Pastikeun sample does not contain debris.
- Masalah tampilan:
- Pariksa tingkat batré jeung ngaganti lamun perlu.
- Ensure the battery is installed with correct polarity.
- Alat Teu Ngabales:
- Ganti batréna.
- Pastikeun kompartemen batré ditutup aman.
If problems persist, contact Hanna Instruments customer support for further assistance.
7. Spésifikasi Téknis
| Parameter | Spésifikasi |
|---|---|
| Modél | HI784 |
| Rentang pangukuran | 0.00 nepi ka 2.50 ppm (mg / L) NH3 |
| Item Beurat | 1.08 pon (kira-kira 0.49 kg) |
| Produsén | Hanna Instrumén |
| ASIN | B0B4463YTX |
| Batré | 1 batré AAA (kaasup) |
| Item Dimensi Paket | 9.25 x 6.5 x 2.68 inci |
| Warna | Konéng |
| Size (Device) | 86.0 x 61.0 x 37.5 mm |
| Liquid Volume (Reagent) | 0.7 Milliliters (per test, typically) |
| Wangun Item | Liquid (Reagent) |
8. Garansi jeung Rojongan
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 Instrumén Websitus: www.hannainst.com





