1. Introduzione
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. Informazioni di sicurezza
Always observe the following safety precautions to prevent injury and avoid damage to the instrument:
- Ùn superate micca a gamma di pressione specificata di u dispusitivu.
- Ensure proper connection of pressure tubing to avoid leaks or incorrect readings.
- Do not expose the manometer to extreme temperatures, humidity, or corrosive environments.
- Use only the specified battery type for replacement.
- Mantene u dispusitivu pulitu è senza debris.
3. Produttu Finituview
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 Pannellu Frontale
Figura 1: Fronte view of the Dwyer 477B-3 Digital Manometer, showing the digital display and control buttons.
U pannellu frontale include:
- Display Digitale: Shows pressure readings and operational indicators.
- Pulsante ON/OFF: Accende o spegne u dispusitivu.
- 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 Back Panel
Figura 2: Torna 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. Setup
4.1 Installazione di batterie
Figura 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.
- Rimpiazzate u coperchio di a batteria è fissatelu cù e viti.
4.2 Power-On iniziale
Dopu l'installazione di a batteria, appughjà u buttone ON/OFF button to power on the device. The display will illuminate, indicating the device is ready for use.
5. Operating Instructions
5.1 ON/OFF Function
- Press u ON/OFF button to toggle the device on and off.
- L'apparecchiu si spegnerà automaticamente dopu à 20 minuti d'inattività per cunservà a batteria.
- To illuminate the display during power-on, hold the ON/OFF buttone.
5.2 Funzione ZERO
- Vent both pressure ports to the atmosphere.
- Appughjà è tene premutu ZERO/STORE button until the LCD displays "----", then release it. The manometer is now zeroed.
5.3 UNITS/LOC Function
- Press u UNITS/LOC button to cycle through and select desired measurement units.
5.4 HOLD/MEMORY Function
- Hold Reading: Press u HOLD/MEMORY button to hold the current reading on the display. Press it again to resume measurement.
- Funzione di memoria:
- 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.
- À view stored data, press and hold HOLD/MEMORY until "LOC" is displayed. If needed, press UNITS/LOC à view other memory locations.
- To exit memory mode, press HOLD/MEMORY di novu.
- To clear all data, press and hold HOLD/MEMORY until "CLR" is displayed, then press ZERO/STORE.
5.5 DAMPING Function
- Press è mantene premutu HOLD/MEMORY until "DAMP" is displayed, then release the HOLD/MEMORY buttone.
- Press ZERO/STORE or UNITS/LOC to adjust the damping level from 1 to 8 (default is 3).
- To exit dampin modu, appughjà HOLD/MEMORY di novu.
6. Mantenimentu
6.1 Pulizia
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 Sustituzione di batterie
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. Risoluzione di prublemi
| Prublemu | Causa Possibile | Soluzione |
|---|---|---|
| U dispusitivu ùn accende micca. | Batteria morta o installata in modu incorrectu. | Rimpiazzà a batteria, assicurendu a polarità curretta. |
| Letture imprecise o fluttuanti. | 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. | A bateria hè bassa. | Rimpiazzate a bateria 9V. |
8. Specificazioni
- Mudellu: 477B-3
- Gamma: 0 to 200" wc (0 to 49.82 kPa)
- Precisione: ± 0.1% FS
- Materiale di l'alloghju: Alluminiu
- Memoria: 40 letture
- Fonte di energia: 9V battery (DURACELL MN 1604, EVEREADY 522, or equivalent)
- Produttore: Dwyer
- UPC: 782568954475
9. Garanzia è Support
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.
