Návod k obsluze digitálního manometru Dwyer 475-1-FM

1. Úvod

The Dwyer 475-1-FM Handheld Digital Manometer is designed for fast, accurate positive, negative, and differential pressure measurements. This device is suitable for use with air and compatible combustible gases. Its robust design and intrinsic safety features make it ideal for various industrial and scientific applications, including HVAC system monitoring, clean rooms, fume hoods, and isolation cabinets.

2. Bezpečnostní informace

2.1 Intrinsically Safe Operation

The Dwyer 475 Series Manometer is FM-approved intrinsically safe for Class 1, Div. 1, Group A, B, C, D, T4 hazardous locations. Adhere to all local and national safety regulations when operating in such environments.

2.2 Gas Compatibility

This manometer is compatible with air and compatible combustible gases. Do not use with incompatible or corrosive gases, as this may damage the instrument and pose a safety risk. Always verify gas compatibility before connecting the manometer.

2.3 Obecná bezpečnostní opatření

• Ensure the manometer is in good working condition before each use.
• Zabraňte pádu zařízení na zem nebo jeho vystavení silným nárazům.
• Do not attempt to open or repair the unit yourself, as this may void the warranty and compromise intrinsic safety.
• Chraňte zařízení před extrémními teplotami a vlhkostí.

3. Obsah balení

Ověřte, zda jsou v balení přítomny všechny níže uvedené položky:

• Dwyer 475-1-FM Handheld Digital Manometer
• Rubber Latex Tubing (3/16 inch ID, 9 foot length)
• zápěstí na krk
• 9V alkalická baterie
• Návod k obsluze (tento návod)

Image: The Dwyer 475-1-FM Digital Manometer shown alongside the included rubber latex tubing. The manometer features a digital display and control buttons for ON/OFF, ZERO, and UNITS.

4. Nastavení

4.1 Instalace baterie

1. Locate the battery compartment cover on the back of the manometer.
2. Odstraňte kryt.
3. Insert the supplied 9V alkaline battery, ensuring correct polarity.
4. Bezpečně nasaďte kryt prostoru pro baterie.

4.2 Tubing Connection

The manometer features two barbed connections for tubing. These connections accept 1/8" (3.18 mm) or 3/16" (4.76 mm) I.D. tubing.

1. For positive pressure, connect the tubing from the pressure source to the positive (+) port.
2. For negative pressure (vacuum), connect the tubing from the vacuum source to the negative (-) port.
3. For differential pressure, connect the higher pressure source to the positive (+) port and the lower pressure source to the negative (-) port.
4. Ensure tubing connections are snug to prevent leaks.

5. Návod k obsluze

5.1 Zapnutí/vypnutí

• Stiskněte tlačítko ON/OFF tlačítko pro zapnutí zařízení.
• Stiskněte tlačítko ON/OFF button again to power off the device.

5.2 Auto Zero Function

Before taking a measurement, it is crucial to zero the instrument for accuracy.

1. Ensure both pressure ports are open to atmospheric pressure (disconnected from any pressure source).
2. Stiskněte tlačítko NULA button. The display will show '0.00' or a similar indication, confirming the zeroing process.

5.3 Pressure Unit Selection

The manometer allows selection between U.S. and metric pressure units.

• Stiskněte tlačítko JEDNOTKY button to cycle through available pressure units (e.g., in. w.c., kPa).
• Vyberte požadovanou jednotku pro měření.

5.4 Provádění měření

1. Perform the Auto Zero function as described in Section 5.2.
2. Connect the tubing to the appropriate pressure source(s) as described in Section 4.2.
3. The large LCD will display the pressure reading in the selected units.
4. The manometer can display positive, negative, or differential pressures.

6. Údržba

6.1 Čištění

Wipe the exterior of the manometer with a soft, damp hadříkem. Nepoužívejte abrazivní čisticí prostředky ani rozpouštědla, protože by mohly poškodit casing nebo displej.

6.2 Výměna baterie

When the battery indicator appears on the display, replace the 9V alkaline battery following the steps in Section 4.1. A fresh battery provides up to 100 hours of operation.

6.3 Skladování

Store the manometer in a dry, cool place, away from direct sunlight and extreme temperatures. Disconnect tubing and remove the battery if storing for extended periods to prevent leakage.

7. Řešení problémů

8. Specifikace

• Duální rozsah: 0-20.00" w.c. (4.982 kPa)
• Přesnost:
  • ±0.5% Full Scale, 60 to 78°F (15.6 to 25.6°C)
  • ±1.5% Full Scale, 32 to 60°F and 78 to 104°F (0 to 15.6°C and 25.6 to 40°C)
• Tlaková hystereze: ±0.1 % plného rozsahu
• Teplotní limity: 0 až 140 °F (-17.8 až 60 °C)
• Kompenzované teplotní limity: 32 až 104 °F (0 až 40 °C)
• Limity skladovací teploty: -4 až 176 °F (-20 až 80 °C)
• Zobrazit: 0.42" (10.6 mm) 4-digit LCD
• Požadavky na napájení: 9V alkaline battery (user replaceable)
• Hmotnost: 10.8 unce (306 g)
• Procesní připojení: Two barbed connections for 1/8" (3.18 mm) or 3/16" (4.76 mm) I.D. tubing
• Servis: Air and compatible combustible gases
• Schválení agentury: CE, FM (Intrinsically Safe for Class 1, Div. 1, Group A, B, C, D, T4 hazardous locations)
• Rozměry: 6.5 x 3.5 x 0.75 palce
• Materiál: Latex, Rubber (for tubing)

9. Záruka a podpora

9.1 Informace o záruce

Dwyer Instruments, Inc. warrants this product to be free from defects in material and workmanship for a period of one year from the date of purchase. For full warranty details and conditions, please refer to the official Dwyer Instruments webwebu nebo kontaktujte zákaznickou podporu.

9.2 Technická podpora

For technical assistance, troubleshooting beyond this manual, or to inquire about repairs, please contact Dwyer Instruments customer service. Contact information can typically be found on the manufacturer's official webmístě nebo na obalu produktu.