1. Танилцуулга
This manual provides comprehensive instructions for the safe and effective operation, setup, and maintenance of the Dwyer 477B-3 Handheld Digital Manometer. The 477B-3 is designed for precise measurement of air pressure, offering high accuracy and internal memory for data storage.
2. Аюулгүй байдлын мэдээлэл
Always observe the following safety precautions to prevent injury and avoid damage to the instrument:
- Do not exceed the specified pressure range of the device.
- Ensure proper connection of pressure tubing to avoid leaks or incorrect readings.
- Do not expose the manometer to extreme temperatures, humidity, or corrosive environments.
- Солихдоо зөвхөн заасан төрлийн батерейг ашиглана уу.
- Төхөөрөмжийг цэвэр, хог хаягдлаас хол байлга.
3. Бүтээгдэхүүн дууссанview
The Dwyer 477B-3 is a robust handheld digital manometer encased in an aluminum housing. It features a clear digital display and intuitive button controls for various functions.
3.1 Урд самбар

Зураг 1: Урд view of the Dwyer 477B-3 Digital Manometer, showing the digital display and control buttons.
Урд самбар нь дараахь зүйлийг агуулна.
- Дижитал дэлгэц: Shows pressure readings and operational indicators.
- ON/OFF товч: Төхөөрөмжийг асаах эсвэл унтраах.
- ZERO/STORE Button: Zeros the reading or stores data in memory.
- HOLD/MEMORY Button: Holds the current reading or accesses stored data.
- UNITS/LOC Button: Changes measurement units or navigates memory locations.
3.2 Арын самбар

Зураг 2: Буцах view of the Dwyer 477B-3 Digital Manometer, displaying key operating instructions and specifications.
The back panel provides quick reference operating instructions and device specifications. It also houses the pressure ports at the top and the battery compartment at the bottom.
4. Тохиргоо
4.1 Батерей суурилуулах

Зураг 3: View of the battery compartment on the Dwyer 477B-3 Digital Manometer.
- Locate the battery compartment cover on the bottom rear of the manometer.
- Unscrew the retaining screws at the base of the instrument to remove the battery cover.
- Insert a 9V battery (e.g., DURACELL MN 1604, EVEREADY 522, or equivalent), observing correct polarity.
- Батерейны тагийг буцааж тавиад боолтоор бэхлэнэ үү.
4.2 Анхдагч асаалттай
Батерейг суурилуулсны дараа товчийг дарна уу ON/OFF button to power on the device. The display will illuminate, indicating the device is ready for use.
5. Ашиглалтын заавар
5.1 ON/OFF Function
- дээр дарна уу ON/OFF button to toggle the device on and off.
- The device will automatically shut off after 20 minutes of inactivity to conserve battery life.
- To illuminate the display during power-on, hold the ON/OFF товч.
5.2 ZERO Function
- Vent both pressure ports to the atmosphere.
- -г удаан дар ZERO/STORE button until the LCD displays "----", then release it. The manometer is now zeroed.
5.3 UNITS/LOC Function
- дээр дарна уу UNITS/LOC button to cycle through and select desired measurement units.
5.4 HOLD/MEMORY Function
- Уншихыг барих: дээр дарна уу HOLD/MEMORY button to hold the current reading on the display. Press it again to resume measurement.
- Санах ойн функц:
- To store a reading, press and hold HOLD/MEMORY until "ST01" (or next available location) is displayed, then press ZERO/STORE. If needed, press UNITS/LOC to select another storage location before pressing ZERO/STORE.
- руу view stored data, press and hold HOLD/MEMORY until "LOC" is displayed. If needed, press UNITS/LOC руу view other memory locations.
- To exit memory mode, press HOLD/MEMORY дахин.
- To clear all data, press and hold HOLD/MEMORY until "CLR" is displayed, then press ZERO/STORE.
5.5 ДAMPING Function
- Дарж удаан дарна уу HOLD/MEMORY until "DAMP" is displayed, then release the HOLD/MEMORY товч.
- дарна уу ZERO/STORE or UNITS/LOC to adjust the damping level from 1 to 8 (default is 3).
- To exit dampгорим, дарна уу HOLD/MEMORY дахин.
6. Засвар үйлчилгээ
6.1 Цэвэрлэгээ
Wipe the exterior of the manometer with a soft, damp cloth. Do not use abrasive cleaners or solvents, as these may damage the housing or display.
6.2 Батерейг солих
When the "LOW BAT" indicator appears on the display, replace the 9V battery as described in Section 4.1. Prompt battery replacement ensures continued accurate operation.
7. Алдаа засах
| Асуудал | Боломжит шалтгаан | Шийдэл |
|---|---|---|
| Төхөөрөмж асахгүй байна. | Дууссан эсвэл буруу суурилуулсан зай. | Батерейг сольж, туйлшралыг зөв эсэхийг шалгана уу. |
| Буруу эсвэл хэлбэлзэлтэй уншилт. | Manometer not zeroed; pressure leaks; unstable pressure source. | Perform ZERO function; check all tubing connections for leaks; ensure stable pressure source. |
| "LOW BAT" indicator displayed. | Батерей бага байна. | 9V батерейг солино уу. |
8. Техникийн үзүүлэлтүүд
- Загвар: 477B-3
- Хүрээ: 0 to 200" wc (0 to 49.82 kPa)
- Нарийвчлал: ±0.1% FS
- Орон сууцны материал: Хөнгөн цагаан
- Санах ой: 40 уншилт
- Эрчим хүчний эх үүсвэр: 9V battery (DURACELL MN 1604, EVEREADY 522, or equivalent)
- Үйлдвэрлэгч: Дуйер
- UPC: 782568954475
9. Баталгаат хугацаа ба дэмжлэг
Specific warranty information for the Dwyer 477B-3 Digital Manometer is not provided in the product data. Please refer to the official Dwyer website or contact your authorized dealer for detailed warranty terms and conditions.
For technical support or service inquiries, please contact Dwyer Instruments, Inc. directly or consult their official documentation.





