1. Uvod
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. Sigurnosne informacije
Uvijek se pridržavajte sljedećih sigurnosnih mjera opreza kako biste spriječili ozljede i izbjegli oštećenje instrumenta:
- 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.
- Za zamjenu koristite samo navedeni tip baterije.
- Održavajte uređaj čistim i bez ostataka.
3. Proizvod je gotovview
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 Prednja ploča

Slika 1: Front view of the Dwyer 477B-3 Digital Manometer, showing the digital display and control buttons.
Prednja ploča uključuje:
- Digitalni prikaz: Shows pressure readings and operational indicators.
- Dugme za uključivanje/isključivanje: Uključuje ili isključuje uređaj.
- 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 Zadnja ploča

Slika 2: Nazad 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. Podešavanje
4.1 Instalacija baterije

Slika 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.
- Vratite poklopac baterije i pričvrstite ga vijcima.
4.2 Početno uključivanje
Nakon ugradnje baterije, pritisnite ON/OFF button to power on the device. The display will illuminate, indicating the device is ready for use.
5. Uputstvo za upotrebu
5.1 ON/OFF Function
- Pritisnite 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 dugme.
5.2 ZERO Function
- Vent both pressure ports to the atmosphere.
- Pritisnite i držite ZERO/STORE button until the LCD displays "----", then release it. The manometer is now zeroed.
5.3 UNITS/LOC Function
- Pritisnite UNITS/LOC button to cycle through and select desired measurement units.
5.4 HOLD/MEMORY Function
- Hold Reading: Pritisnite HOLD/MEMORY button to hold the current reading on the display. Press it again to resume measurement.
- Memorijska funkcija:
- 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.
- To view stored data, press and hold HOLD/MEMORY until "LOC" is displayed. If needed, press UNITS/LOC to view other memory locations.
- To exit memory mode, press HOLD/MEMORY opet.
- To clear all data, press and hold HOLD/MEMORY until "CLR" is displayed, then press ZERO/STORE.
5.5 DAMPING Function
- Pritisnite i držite HOLD/MEMORY until "DAMP" is displayed, then release the HOLD/MEMORY dugme.
- Pritisnite ZERO/STORE or UNITS/LOC to adjust the damping level from 1 to 8 (default is 3).
- To exit dampu režimu rada, pritisnite HOLD/MEMORY opet.
6. Održavanje
6.1 Čišćenje
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 Zamjena baterije
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. Otkrivanje problema
| Problem | Mogući uzrok | Rješenje |
|---|---|---|
| Uređaj se ne uključuje. | Prazna ili nepravilno instalirana baterija. | Zamijenite bateriju, pazeći na ispravan polaritet. |
| Netačna ili fluktuirajuća očitanja. | 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. | Baterija je prazna. | Zamijenite 9V bateriju. |
8. Specifikacije
- Model: 477B-3
- Raspon: 0 to 200" wc (0 to 49.82 kPa)
- tačnost: ±0.1% FS
- Materijal kućišta: Aluminijum
- Memorija: 40 očitavanja
- Izvor napajanja: 9V battery (DURACELL MN 1604, EVEREADY 522, or equivalent)
- Proizvođač: Dwyer
- UPC: 782568954475
9. Garancija i podrška
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.





