Extech FL700 Fluoride Meter User Manual

1. పరిచయం

The Extech FL700 Fluoride Meter is a precision instrument designed for the rapid and accurate measurement of fluoride ions in various aqueous samples, including drinking water. This device integrates a sensing electrode, measurement electronics, and a digital display into a single, portable unit, making it suitable for both field and laboratory applications.

The FL700 provides direct readings of total fluoride concentrations ranging from 9.99 ppm or mg/L down to 0.1 ppm. It features automatic temperature compensation to ensure measurement accuracy across varying environmental conditions.

2. భద్రతా సమాచారం

Please read and understand all safety precautions before operating the Extech FL700 Fluoride Meter. Failure to follow these instructions may result in injury or damage to the instrument.

• Always handle the fluoride electrode with care. Avoid touching the sensing element directly.
• When working with TISAB reagent tablets or any chemical solutions, wear appropriate personal protective equipment, including gloves and eye protection.
• Do not immerse the entire meter in liquid. The meter is designed for electrode immersion only.
• Store the meter and reagents in a cool, dry place, away from direct sunlight and extreme temperatures.
• పిల్లలకు దూరంగా ఉంచండి.

3. ఉత్పత్తి ముగిసిందిview

The Extech FL700 Fluoride Meter is a compact and user-friendly device. Key components and features are outlined below:

ముఖ్య లక్షణాలు:

• రెండు పాయింట్ల క్రమాంకనం: Ensures accurate measurements across the fluoride range.
• మెమరీ నిల్వ: Stores up to 25 labeled readings for later review.
• Field or lab testing: Designed for versatile use in various environments.
• Fast response: Provides fluoride measurements in less than 1 minute.
• Large dual LCD: Simultaneously displays ppm (or mg/L) and temperature with a bargraph.

4. సెటప్

4.1. బ్యాటరీ ఇన్‌స్టాలేషన్

The Extech FL700 requires four 3V button batteries (included). To install or replace batteries:

1. మీటర్ పైభాగంలో ఉన్న బ్యాటరీ కంపార్ట్‌మెంట్ క్యాప్‌ను తిప్పండి.
2. Insert the four 3V button batteries, ensuring correct polarity as indicated inside the compartment.
3. Replace the battery compartment cap and twist to secure.

4.2. ప్రారంభ తయారీ

Before first use or after prolonged storage, prepare the electrode:

1. Remove the sensor cap from the electrode tip.
2. ఎలక్ట్రోడ్ కొనను డిస్టిల్డ్ వాటర్ తో శుభ్రం చేసుకోండి.
3. Condition the electrode by immersing it in a fluoride standard solution (e.g., 1 ppm or 10 ppm) for approximately 15-30 minutes.

5. ఆపరేటింగ్ సూచనలు

5.1. పవర్ చేయడం ఆన్/ఆఫ్

నొక్కండి ఆన్/ఆఫ్ button to turn the meter on or off.

5.2. Calibration (Two-Point)

Accurate calibration is crucial for reliable measurements. The FL700 supports two-point calibration.

1. Prepare two fluoride standard solutions, typically one low concentration (e.g., 1 ppm) and one high concentration (e.g., 10 ppm). Ensure the solutions are at a stable temperature.
2. స్వేదనజలంతో ఎలక్ట్రోడ్‌ను కడిగి ఆరబెట్టండి.
3. Immerse the electrode into the first standard solution.
4. నొక్కండి మరియు పట్టుకోండి CAL / RECALL button until 'CAL' appears on the display. The meter will automatically recognize the standard and calibrate. Wait for the reading to stabilize.
5. Rinse the electrode again and immerse it into the second standard solution.
6. నొక్కండి మరియు పట్టుకోండి CAL / RECALL button again. The meter will complete the two-point calibration.
7. The meter is now calibrated and ready for measurement.

5.3. కొలత తీసుకోవడం

To measure fluoride concentration in a sampలే:

1. మీటర్ క్రమాంకనం చేయబడిందని నిర్ధారించుకోండి.
2. స్వేదనజలంతో ఎలక్ట్రోడ్‌ను కడిగి ఆరబెట్టండి.
3. Add TISAB (Total Ionic Strength Adjustment Buffer) reagent to your sample according to the reagent instructions. TISAB ensures that the fluoride ions are in a measurable form and minimizes interference.
4. Immerse the electrode tip into the prepared sample solution. Ensure the tip is fully submerged.
5. Allow the reading to stabilize on the display. The large dual LCD will show the fluoride concentration in ppm (or mg/L) and the temperature.
6. ప్రస్తుత రీడింగ్‌ను పట్టుకోవడానికి, మోడ్ / హోల్డ్ బటన్. విడుదల చేయడానికి మళ్ళీ నొక్కండి.

5.4. Recalling Stored Readings

The meter can store up to 25 labeled readings.

• To recall stored readings, press the CAL / RECALL button briefly when not in calibration mode.
• ఉపయోగించండి మోడ్ / హోల్డ్ button to scroll through the stored readings.

6. నిర్వహణ

6.1. ఎలక్ట్రోడ్ క్లీనింగ్

Regular cleaning of the electrode ensures optimal performance.

• After each use, rinse the electrode thoroughly with distilled water.
• If the electrode becomes fouled or readings become erratic, clean it with a mild detergent solution or a specialized electrode cleaning solution. Rinse thoroughly with distilled water afterward.

6.2. నిల్వ

Proper storage extends the life of the electrode and meter.

• Always replace the sensor cap on the electrode tip when not in use. The cap should contain a small amount of electrode storage solution or a fluoride standard solution to keep the membrane hydrated. Do not store dry.
• మీటర్‌ను చల్లని, పొడి ప్రదేశంలో నిల్వ చేయండి.

6.3. బ్యాటరీ భర్తీ

Replace batteries when the low battery indicator appears on the display or when the meter fails to power on. Refer to Section 4.1 for battery installation instructions.

7. ట్రబుల్షూటింగ్

8. స్పెసిఫికేషన్లు

9. వారంటీ సమాచారం

The Extech FL700 Fluoride Meter comes with a full one-year warranty on parts and workmanship, unless otherwise specified. This warranty does not cover defects resulting from user actions such as misuse, improper wiring, operation outside of specified parameters, improper maintenance or repair, or unauthorized modification.

10. మద్దతు

For technical support, service, or additional information, please visit the official Extech webసైట్‌లో లేదా వారి కస్టమర్ సర్వీస్ విభాగాన్ని సంప్రదించండి. మీరు మరింత సమాచారం మరియు ఉత్పత్తులను కూడా ఇక్కడ కనుగొనవచ్చు అమెజాన్‌లో ఎక్స్‌టెక్ స్టోర్.