Introducció
The Hanna Instruments HI 98703 is a portable turbidity meter designed for accurate measurement of turbidity in various water samples. This device is engineered to meet EPA reporting requirements, making it suitable for environmental monitoring and water quality analysis. It features advanced capabilities such as multi-point calibration, data logging, and automatic range selection, ensuring reliable and precise results in both field and laboratory settings.
Què hi ha a la caixa
En desembalar-lo, comproveu que tots els components que s'enumeren a continuació hi són presents i en bon estat:
- Hanna Instruments HI 98703 Portable Turbidity Meter
- Cinc sample cuvets and caps
- Calibration cuvets (HI 98703-11)
- Silicone oil (HI 93703-58)
- Tissue for wiping the cuvets
- Cinc tag holders with tags (HI 920005)
- Quatre piles AA
- Adaptador de CA
- Manual d'instruccions (aquest document)
- Certificat de qualitat de l'instrument
- Maleta de transport
Image: The complete Hanna Instruments HI 98703 Portable Turbidity Meter kit, including the meter, cuvets, calibration standards, and accessories, neatly organized within its blue carrying case.
Configuració
- Instal·lació de la bateria: Open the battery compartment and insert the four 1.5V AA batteries, ensuring correct polarity. Alternatively, connect the AC adapter for continuous power.
- Encesa inicial: Press the power button to turn on the device. The backlit LCD screen will illuminate.
- Calibració: The meter supports two, three, or four-point calibration. Refer to the "Operating Instructions" section for detailed calibration procedures using the provided calibration cuvets. Regular calibration ensures accurate measurements.
- Cuvet Preparation: Assegureu-vos que tots els sample cuvets are clean and free from scratches or smudges. Use the provided tissue and silicone oil as needed to maintain optical clarity.
Imatge: Un primer pla view of the Hanna Instruments HI 98703 Portable Turbidity Meter, showing its display, keypad, and the cuvet slot with its cover open.
Instruccions de funcionament
The HI 98703 is designed for straightforward operation, providing instant turbidity readings and data logging capabilities.
- Procediment de calibratge:
- Enceneu el comptador.
- Use Hanna's unique Cal Check feature for easy calibration. Follow the on-screen prompts to perform a two, three, or four-point calibration using the supplied calibration cuvets (HI 98703-11). This process automatically compensates for variations in lamp intensitat.
- Prendre una mesura:
- Collect your water sample in one of the clean sample cuvets.
- Insert the cuvet into the instrument's sampla cèl·lula.
- Close the lid securely to prevent ambient light interference.
- Press the "READ" button. The meter will display the turbidity reading in NTU (Nephelometric Turbidity Units).
- The meter automatically selects the appropriate measurement range (0.00 to 9.99 NTU, 10.0 to 99.9 NTU, or 100 to 1000 NTU).
- Data Logging and Transfer:
- The meter can log up to 200 measurements.
- Utilitzeu el Tag Identification System (HI 920005) by placing tags at multiple sample locations. The meter can read these tags to associate measurements with specific sites, enhancing data organization.
- Logged data can be downloaded to a PC using Hanna's optional Windows-compatible software. Connect the meter via USB 1.1 or RS 232 interface.
Video: An instructional video demonstrating the use of the Hanna Instruments HI 98703 Portable Turbidity Meter, including calibration, sample measurement, and data logging features.
Manteniment
Proper maintenance ensures the longevity and accuracy of your HI 98703 Turbidity Meter.
- Neteja: Regularly clean the exterior of the meter with a soft, damp cloth. Ensure the cuvet compartment and optical path are free from dust, dirt, or liquid spills. Use the provided tissue for wiping cuvets.
- Cuvet Care: Handle cuvets with care to avoid scratches. Scratched or dirty cuvets can affect measurement accuracy. Apply silicone oil to cuvets as instructed to minimize light scattering.
- Emmagatzematge: When not in use, store the meter and its accessories in the provided hard carrying case in a cool, dry place, away from direct sunlight and extreme temperatures.
- Substitució de la bateria: Replace batteries when the low battery indicator appears on the display to ensure continuous operation.
Resolució de problemes
If you encounter issues with your HI 98703 Turbidity Meter, consider the following common troubleshooting steps:
- Lectures inexactes:
- Ensure the meter has been recently calibrated.
- Check cuvets for cleanliness, scratches, or air bubbles in the sample.
- Verify that the cuvet lid is fully closed during measurement.
- Confirm that the correct calibration standards are being used.
- Meter Not Powering On:
- Comproveu la instal·lació de les piles i assegureu-vos que no estiguin esgotades. Substituïu-les si cal.
- If using the AC adapter, ensure it is properly connected and the power source is active.
- Problemes de transferència de dades:
- Verify the USB or RS 232 cable connection between the meter and the PC.
- Ensure Hanna's compatible software is correctly installed and running on your computer.
For persistent issues, please contact Hanna Instruments customer support.
Especificacions
| Característica | Detall |
|---|---|
| Número de model | 1197H88EA |
| Dimensions del producte | 8.82 x 3.03 x 3.43 polzades |
| Pes | 1.1 lliures (512 g) |
| Turbidity Ranges | 0.00 to 9.99 NTU; 10.0 to 99.9 NTU; 100 to 1000 NTU |
| Precisió | ± 2% of reading plus 0.02 NTU |
| Resolució | 0.01 NTU (0.00 to 9.99 NTU); 0.1 NTU (10.0 to 99.9 NTU); 1 NTU (100 to 1000 NTU) |
| Calibració | Two, three, or four-point calibration |
| Font de llum | Filament de tungstè lamp |
| Registre de dades | Fins a 200 samples |
| Interfície | USB 1.1 or RS 232 |
| Font d'alimentació | Four 1.5V AA batteries or AC adapter |
| Apagat automàtic | Després de 15 minuts sense utilitzar |
| Compliment | USEPA Method 180.1 and Standard Method 2130 B |
Garantia i Suport
Specific warranty terms and detailed support contact information are not provided in the available product data. For warranty claims, technical assistance, or to purchase accessories, please refer to the official Hanna Instruments website or contact their customer service directly. Keep your instrument quality certificate and proof of purchase for any warranty-related inquiries.
