Dwyer 475-1-FM Digital Manometer Instruction Manual

1. Ifihan

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. Alaye Aabo

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 Gbogbogbo Awọn iṣọra

• Ensure the manometer is in good working condition before each use.
• Yago fun sisọ silẹ tabi tẹriba ẹrọ si ipa nla.
• Do not attempt to open or repair the unit yourself, as this may void the warranty and compromise intrinsic safety.
• Keep the device away from extreme temperatures and moisture.

3. Package Awọn akoonu

Daju pe gbogbo awọn nkan ti a ṣe akojọ rẹ si isalẹ wa ninu package rẹ:

• Dwyer 475-1-FM Handheld Digital Manometer
• Rubber Latex Tubing (3/16 inch ID, 9 foot length)
• Ọwọ Lanyard
• Batiri Batiri 9V
• Awọn ilana Iṣiṣẹ (Itọsọna yii)

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. Eto

4.1 Fifi sori batiri

1. Locate the battery compartment cover on the back of the manometer.
2. Yọ ideri kuro.
3. Insert the supplied 9V alkaline battery, ensuring correct polarity.
4. Rọpo ideri iyẹwu batiri ni aabo.

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. Awọn ilana Iṣiṣẹ

5.1 Titan / Pa a

• Tẹ awọn TAN/PA bọtini lati agbara lori ẹrọ.
• Tẹ awọn TAN/PA 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. Tẹ awọn ZERO 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.

• Tẹ awọn UNITS button to cycle through available pressure units (e.g., in. w.c., kPa).
• Yan ẹ̀rọ tí o fẹ́ fún ìwọ̀n rẹ.

5.4 Gbigba Awọn wiwọn

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. Itọju

6.1 Ninu

Wipe the exterior of the manometer with a soft, damp Aṣọ. Má ṣe lo àwọn ohun ìfọṣọ tàbí àwọn ohun olómi, nítorí pé àwọn wọ̀nyí lè ba c jẹ́.asing tabi ifihan.

6.2 Batiri Rirọpo

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 Ibi ipamọ

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. Laasigbotitusita

8. Awọn pato

• Iwọn Meji: 0-20.00" w.c. (4.982 kPa)
• Yiye:
  • ±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)
• Ipa Hysteresis: ± 0.1% ti Iwọn kikun
• Awọn idiwọn iwọn otutu: 0 si 140°F (-17.8 si 60°C)
• Awọn ifilelẹ iwọn otutu Ẹsan: 32 si 104°F (0 si 40°C)
• Ifilelẹ iwọn otutu: -4 si 176°F (-20 si 80°C)
• Ifihan: 0.42" (10.6 mm) 4-digit LCD
• Awọn ibeere Agbara: 9V alkaline battery (user replaceable)
• Ìwúwo: 10.8 iwon. (306 g)
• Awọn isopọ ilana: Two barbed connections for 1/8" (3.18 mm) or 3/16" (4.76 mm) I.D. tubing
• Iṣẹ: Air and compatible combustible gases
• Awọn ifọwọsi Ile-ibẹwẹ: CE, FM (Intrinsically Safe for Class 1, Div. 1, Group A, B, C, D, T4 hazardous locations)
• Awọn iwọn: 6.5 x 3.5 x 0.75 inches
• Ohun elo: Latex, Rubber (for tubing)

9. Atilẹyin ọja & Atilẹyin

9.1 atilẹyin ọja Alaye

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 webojula tabi kan si atilẹyin alabara.

9.2 Imọ Support

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 webaaye tabi lori apoti ọja.