1. Introduzzjoni
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. Informazzjoni dwar is-Sigurtà
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.
- Use only the specified battery type for replacement.
- Żomm l-apparat nadif u ħieles minn debris.
3. Prodott Aktarview
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 Panel ta 'Quddiem
Figura 1: Quddiem view of the Dwyer 477B-3 Digital Manometer, showing the digital display and control buttons.
Il-pannell ta 'quddiem jinkludi:
- Wirja Diġitali: Shows pressure readings and operational indicators.
- Buttuna ON/OFF: Jixgħel jew jitfi l-apparat.
- 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 Panel ta' wara
Figura 2: Lura 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 Installazzjoni tal-batterija
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.
- Erġa’ poġġi l-għatu tal-batterija u waħħalha bil-viti.
4.2 Tixgħel Inizjali
Wara l-installazzjoni tal-batterija, agħfas il-buttuna ON/OFF button to power on the device. The display will illuminate, indicating the device is ready for use.
5. Istruzzjonijiet Operattivi
5.1 ON/OFF Function
- Agħfas il- 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 buttuna.
5.2 ZERO Function
- Vent both pressure ports to the atmosphere.
- Agħfas u żomm il- ZERO/STORE button until the LCD displays "----", then release it. The manometer is now zeroed.
5.3 UNITS/LOC Function
- Agħfas il- UNITS/LOC buttuna biex tiċċaqlaq bejn l-unitajiet tal-kejl mixtieqa u tagħżelhom.
5.4 HOLD/MEMORY Function
- Hold Reading: Agħfas il- HOLD/MEMORY button to hold the current reading on the display. Press it again to resume measurement.
- Funzjoni tal-memorja:
- 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.
- Biex view stored data, press and hold HOLD/MEMORY until "LOC" is displayed. If needed, press UNITS/LOC biex view other memory locations.
- To exit memory mode, press HOLD/MEMORY mill-ġdid.
- To clear all data, press and hold HOLD/MEMORY until "CLR" is displayed, then press ZERO/STORE.
5.5 DAMPING Function
- Agħfas u żomm HOLD/MEMORY until "DAMP" is displayed, then release the HOLD/MEMORY buttuna.
- Agħfas ZERO/STORE or UNITS/LOC to adjust the damping level from 1 to 8 (default is 3).
- To exit dampmod ing, agħfas HOLD/MEMORY mill-ġdid.
6. Manutenzjoni
6.1 Tindif
Imsaħ il-barra tal-manometru b'ċarruta ratba u damp cloth. Do not use abrasive cleaners or solvents, as these may damage the housing or display.
6.2 Sostituzzjoni tal-batterija
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 Issolvi l-problemi
| Problema | Kawża Possibbli | Soluzzjoni |
|---|---|---|
| L-apparat ma jixgħelx. | Batterija mejta jew installata ħażin. | Ibdel il-batterija, waqt li tiżgura l-polarità korretta. |
| Qari mhux preċiż jew li jvarja. | 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. | Il-batterija hija baxxa. | Ibdel il-batterija ta '9V. |
8. Speċifikazzjonijiet
- Mudell: 477B-3
- Firxa: 0 to 200" wc (0 to 49.82 kPa)
- Eżattezza: ± 0.1% FS
- Materjal tad-Djar: Aluminju
- Memorja: 40 qari
- Sors tal-Enerġija: 9V battery (DURACELL MN 1604, EVEREADY 522, or equivalent)
- Manifattur: Dwyer
- UPC: 782568954475
9. Garanzija u Appoġġ
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.
