Dwyer 475-8-FM санариптик манометрдин колдонуу боюнча колдонмосу

1. Киришүү

1.1 Продукт бүттүview

The Dwyer 475-8-FM Handheld Digital Manometer is designed for fast and accurate measurement of positive, negative, or differential pressures. This device is suitable for use with air and compatible combustible gases. Its robust design and intrinsically safe certification make it ideal for various industrial and scientific applications.

1.2 Максаттуу пайдалануу

This manometer is intended for field calibration, monitoring, or troubleshooting HVAC systems, clean rooms, fume hoods, isolation cabinets or rooms, and a wide range of other low-pressure pneumatic systems. It provides precise pressure readings in a portable format.

1.3 Негизги өзгөчөлүктөрү

• Dual Range Measurement: Capable of measuring 0-150.0 psi (10.34 bar).
• Жогорку тактык: ±0.5% Full Scale at 60 to 78°F (15.6 to 25.6°C).
• Ички коопсуз: FM-approved for Class 1, Div. 1, Group A, B, C, D, T4 hazardous locations.
• Колдонуучуга ыңгайлуу интерфейс: Dual push pads for On-Off, Auto Zero, and pressure unit selection.
• Large LCD: 0.42" (10.6 mm) 4-digit display for clear readings.
• Туруктуу курулуш: Solid-state circuitry on a shock-resistant fiberglass epoxy circuit board, housed in an extruded aluminum case.
• Кош сенсор системасы: Compensates for positional sensitivity, ensuring stable and accurate readings.

2. Коопсуздук маалыматы

2.1 Жалпы коопсуздук эрежелери

• Always operate the manometer within its specified pressure and temperature limits.
• Ensure proper connections are made before applying pressure.
• Do not expose the device to corrosive gases or liquids unless explicitly stated as compatible.
• Refer to local safety regulations and guidelines for working in hazardous environments.

2.2 Ички коопсуз иштөө

The Dwyer 475 Series Manometer is FM-approved intrinsically safe for Class 1, Div. 1, Group A, B, C, D, T4 hazardous locations. This certification means the device is designed to prevent ignition of flammable gases or vapors in specified hazardous environments. Adhere to all intrinsically safe installation and operation procedures as outlined by relevant safety standards and authorities.

3. Пакеттин мазмуну

Таңгактан чыгаргандан кийин, төмөндө көрсөтүлгөн нерселердин бардыгы бар экенин жана бузулбаганын текшериңиз:

• Dwyer 475-8-FM Handheld Digital Manometer
• Soft, Vinyl, Zippered Carry Case
• Билек боосу
• 9V Alkaline Battery (installed, non-functional, user replaceable)
• Иштетүү нускамалары боюнча колдонмо

Figure 1: Dwyer 475-8-FM Digital Manometer with included soft carry case. The image displays the black manometer unit alongside its black zippered protective case.

4. Орнотуу

4.1 Батареяны орнотуу

The manometer operates on a single 9V alkaline battery. A battery is typically included but may be non-functional for shipping purposes and requires replacement before first use. To install or replace the battery:

1. Батарея бөлүмүнүн капкагын түзмөктүн арткы бетинен табыңыз.
2. Капкакты алып салыңыз.
3. Connect a new 9V alkaline battery to the battery clip, observing correct polarity.
4. Place the battery into the compartment and replace the cover securely.

4.2 Түтүктөрдү туташтыруу

The manometer features two barbed connections for pressure input. These connections are compatible with 1/8" (3.18 mm) or 3/16" (4.76 mm) I.D. vinyl or rubber tubing.

1. Identify the pressure source and the appropriate tubing size.
2. Gently push the tubing onto the barbed connections until a secure fit is achieved.
3. For differential pressure measurements, connect the higher pressure source to one port and the lower pressure source to the other. For positive or negative pressure, connect the source to one port and leave the other open to atmosphere or connect to a reference point.

5. Иштөө нускамалары

Figure 2: Front panel of the Dwyer 475-8-FM Digital Manometer, showing the LCD display, ON/OFF, ZERO, and UNITS buttons.

5.1 Күйгүзүү/өчүрүү

To power the unit on or off, press the КҮЙГҮЗҮҮ/ӨЧҮРҮҮ баскычы алдыңкы панелде жайгашкан.

5.2 Auto Zero Function

Before taking a measurement, especially for differential or low-pressure readings, it is crucial to zero the instrument. This compensates for any minor offsets.

1. Ensure both pressure ports are open to the atmosphere or connected to the same reference pressure.
2. басыңыз НӨЛ button on the front panel. The display will briefly show '0.00' or similar, indicating successful zeroing.

5.3 Бирдикти тандоо

The manometer supports various pressure units. To cycle through available units (e.g., psi, bar, inWC, kPa), press the БИРДИКТЕР button on the front panel until the desired unit is displayed.

5.4 Өлчөөлөрдү алуу

1. Power on the manometer.
2. Perform the Auto Zero function as described in Section 5.2.
3. Select the desired pressure unit using the БИРДИКТЕР баскычы.
4. Connect the pressure source(s) to the appropriate barbed connections.
5. Read the pressure value directly from the large LCD display.

6. Техникалык тейлөө

6.1 Тазалоо

To maintain the accuracy and longevity of your manometer, keep it clean. Wipe the exterior with a soft, damp кездеме. Абразивдүү тазалоочу каражаттарды же эриткичтерди колдонбоңуз, анткени алар териге зыян келтириши мүмкүн.asing or display. Ensure no moisture enters the pressure ports.

6.2 Сактоо

When not in use, store the manometer in its provided soft carry case to protect it from dust, impacts, and environmental factors. Store in a dry environment within the specified storage temperature limits of -4 to 176°F (-20 to 80°C).

7. Кыйынчылыктарды

This section addresses common issues you might encounter with your Dwyer 475-8-FM Digital Manometer.

• Дисплей жок/Бирдик күйбөйт:
  • 9V батареясын текшериңиз. Зарыл болсо, алмаштырыңыз.
  • Ensure the battery is correctly installed with proper polarity.
• Туура эмес окуулар:
  • Perform the Auto Zero function before each measurement.
  • Verify that tubing connections are secure and free from leaks.
  • Ensure the manometer is operating within its compensated temperature limits (32 to 104°F / 0 to 40°C).
  • Confirm the correct pressure unit is selected.
• Display Shows 'OVER' or 'UNDER':
  • The applied pressure exceeds the manometer's measurement range. Remove pressure immediately to prevent damage.

If issues persist, contact Dwyer customer support for assistance.

8. Техникалык шарттар

9. Кепилдик жана колдоо

The Dwyer 475-8-FM Digital Manometer is manufactured by Dwyer Instruments, LLC. For warranty information, technical support, or service inquiries, please refer to the official Dwyer Instruments webсайтына кириңиз же алардын кардарларды тейлөө бөлүмүнө түз кайрылыңыз. Кепилдик талаптары үчүн сатып алуунун далили катары сатып алуу квитанцияңызды сактап коюңуз.