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 sulla sicurezza
Per prevenire lesioni ed evitare danni allo strumento, osservare sempre le seguenti precauzioni di sicurezza:
- 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.
- Per la sostituzione utilizzare solo il tipo di batteria specificato.
- Mantenere il dispositivo pulito e privo di detriti.
3. Prodotto finitoview
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 Pannello frontale
Figura 1: Davanti view of the Dwyer 477B-3 Digital Manometer, showing the digital display and control buttons.
Il pannello frontale comprende:
- Display digitale: Shows pressure readings and operational indicators.
- Pulsante ON/OFF: Accende o spegne il dispositivo.
- 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 Pannello posteriore
Figura 2: Indietro 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. Impostazione
4.1 Installazione della batteria
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.
- Riposizionare il coperchio della batteria e fissarlo con le viti.
4.2 Accensione iniziale
Dopo l'installazione della batteria, premere il tasto ACCESO/SPENTO button to power on the device. The display will illuminate, indicating the device is ready for use.
5. Istruzioni per l'uso
5.1 ON/OFF Function
- Premere il tasto ACCESO/SPENTO 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 ACCESO/SPENTO pulsante.
5.2 Funzione ZERO
- Vent both pressure ports to the atmosphere.
- Premere e tenere premuto il tasto ZERO/STORE button until the LCD displays "----", then release it. The manometer is now zeroed.
5.3 UNITS/LOC Function
- Premere il tasto UNITS/LOC button to cycle through and select desired measurement units.
5.4 HOLD/MEMORY Function
- Tieni la lettura: Premere il tasto 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.
- A view stored data, press and hold HOLD/MEMORY until "LOC" is displayed. If needed, press UNITS/LOC A view other memory locations.
- Per uscire dalla modalità memoria, premere HOLD/MEMORY Ancora.
- To clear all data, press and hold HOLD/MEMORY until "CLR" is displayed, then press ZERO/STORE.
5.5 GiorniAMPING Function
- Premere e tenere premuto HOLD/MEMORY until "DAMP" is displayed, then release the HOLD/MEMORY pulsante.
- Premere ZERO/STORE or UNITS/LOC to adjust the damping level from 1 to 8 (default is 3).
- To exit dampmodalità di attivazione, premere HOLD/MEMORY Ancora.
6. Manutenzione
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 Sostituzione della batteria
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 Dei Problemi
| Problema | Possibile causa | Soluzione |
|---|---|---|
| Il dispositivo non si accende. | Batteria scarica o installata in modo errato. | Sostituire la batteria assicurandosi che la polarità sia corretta. |
| 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. |
| Viene visualizzato l'indicatore "LOW BAT". | La batteria è scarica. | Sostituire la batteria da 9V. |
8. Specifiche
- Modello: 477B-3
- Allineare: 0 to 200" wc (0 to 49.82 kPa)
- Precisione: ±0.1% valore di fondo scala
- Materiale dell'alloggiamento: Alluminio
- Memoria: 40 letture
- Fonte di energia: 9V battery (DURACELL MN 1604, EVEREADY 522, or equivalent)
- Produttore: Dwyer
- Codice UPC: 782568954475
9. Garanzia e supporto
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.