Extech DO600 Vandtæt ExStik II Opløst Oxygenmåler Brugermanual

1. Introduktion

The Extech DO600 Waterproof ExStik II Dissolved Oxygen Meter is designed for precise measurement of dissolved oxygen levels. It displays oxygen concentration as a percentage of saturation (0 to 200%) or as a concentration in parts per million (ppm) or milligrams per liter (mg/L) (0 to 20.00 ppm/mg/L). Key features include adjustable altitude compensation, adjustable salinity compensation, and an analog bargraph for trend indication. This manual provides instructions for the proper setup, operation, and maintenance of your DO600 meter.

2. Pakkens indhold

Kontroller, at alle varer er til stede og i god stand ved udpakning:

• Extech DO600 Dissolved Oxygen Meter
• DO-elektrode
• Protective Sensor Cap
• Spare Membrane Cap
• Electrolyte Solution
• Four 3V CR-2032 Batteries (pre-installed or included separately)
• 48-inch (1.2m) Neck Strap

Figure 1: Extech DO600 meter with its accessories, including the electrode, caps, electrolyte, and neck strap.

3. Meter Components

Figur 2: Forside view of the Extech DO600 meter.

1. LCD-skærm: Shows dissolved oxygen readings, temperature, and other indicators.
2. MODE/HOLD-knap: Toggles between measurement modes and holds the current reading.
3. CAL/RECALL Button: Initiates calibration and recalls stored data.
4. ON/OFF knap: Tænder eller slukker måleren.
5. elektrode: Sensor for dissolved oxygen measurement.
6. Protective Sensor Cap: Covers and protects the electrode.

4. Opsætning

4.1. Batteriinstallation

The DO600 meter uses four 3V CR-2032 batteries. These are typically pre-installed. If replacement is necessary:

1. Twist off the battery compartment cap located at the top of the meter.
2. Remove the old batteries, noting their polarity.
3. Insert new CR-2032 batteries with the correct polarity.
4. Sæt batteridækslet sikkert på igen for at bevare den vandtætte forsegling.

4.2. Electrode Preparation

Before first use or after prolonged storage, the DO electrode requires preparation:

1. Unscrew the protective sensor cap from the electrode.
2. Fill the spare membrane cap with the provided electrolyte solution. Ensure no air bubbles are trapped.
3. Carefully screw the membrane cap onto the electrode, ensuring the membrane is taut and free of wrinkles.
4. Allow the electrode to stabilize for approximately 15-30 minutes in the electrolyte solution before calibration.

5. Betjeningsvejledning

5.1. Tænd/sluk

Tryk på ON/OFF button to power the meter on or off.

5.2. Kalibrering

Regular calibration ensures accurate readings. Calibrate the meter in air-saturated water or a known standard solution.

1. Ensure the electrode is prepared as described in Section 4.2.
2. Immerse the electrode in air-saturated water (e.g., tap water stirred vigorously for several minutes) or a DO standard solution.
3. Tryk og hold på CAL/RECALL knappen, indtil "CAL" vises på displayet.
4. The meter will automatically recognize the calibration point and adjust. Wait for the reading to stabilize and for the calibration indicator to confirm completion.

5.3. Målinger

To measure dissolved oxygen:

1. Tænd for måleren.
2. Sæt elektroden ned iample solution. Ensure the membrane is fully submerged and free of air bubbles.
3. Gently stir the electrode in the sample to ensure proper flow across the membrane.
4. Wait for the reading on the LCD display to stabilize. The display will show both dissolved oxygen and temperature.
5. Tryk på TILSTAND/HOLD button to cycle between % saturation and ppm (mg/L) readings.
6. To hold a reading, briefly press the TILSTAND/HOLD knap. Tryk igen for at slippe.

Figure 3: The Extech DO600 meter being used to measure dissolved oxygen in a laboratory.

5.4. Altitude Compensation

Dissolved oxygen saturation levels are affected by altitude. The DO600 allows for manual adjustment:

• Refer to the meter's full instruction manual for specific steps to enter and adjust altitude compensation (0 to 20,000 feet in 1,000 ft. increments).

5.5. Salinity Compensation

Salinity also influences dissolved oxygen levels. The DO600 provides adjustable salinity compensation:

• Consult the meter's comprehensive manual for detailed instructions on setting salinity compensation (0 to 50 ppt).

6. Vedligeholdelse

6.1. Electrode Cleaning and Storage

To maintain electrode performance:

• Skyl elektroden med destilleret vand efter hver brug.
• If the membrane becomes fouled, gently clean it with a soft cloth or cotton swab. Replace the membrane cap if it is damaged or heavily contaminated.
• When storing, ensure the protective sensor cap is filled with electrolyte solution to keep the membrane hydrated.

6.2. Udskiftning af batteri

Udskift batterierne, når indikatoren for lavt batteriniveau vises på displayet. Se afsnit 4.1 for instruktioner om batteriinstallation.

7. Fejlfinding

8. Specifikationer

Figure 4: Physical dimensions of the Extech DO600 meter. Note: The image shows 7.7 inches, while product specifications state 6.9 inches. Refer to the latest product documentation for precise measurements.

9. Produktvideoer

Der blev ikke fundet nogen officielle produktvideoer fra sælgeren for denne vare i de angivne data.

10. Garanti og support

For warranty information, technical support, or to purchase accessories and replacement parts, please refer to Extech's official webwebstedet eller kontakt deres kundeserviceafdeling. Du kan finde flere oplysninger på Extech-butik på Amazon.