1. Introduktion
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. Sikkerhedsoplysninger
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.
- Hold enheden ren og fri for snavs.
3. Produktet er slutview
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 Frontpanel
Figur 1: Front view of the Dwyer 477B-3 Digital Manometer, showing the digital display and control buttons.
Frontpanelet indeholder:
- Digital skærm: Shows pressure readings and operational indicators.
- ON/OFF knap: Tænder eller slukker for enheden.
- 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 Bagpanel
Figur 2: Tilbage 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. Opsætning
4.1 Batteriinstallation
Figur 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.
- Sæt batteridækslet på igen, og fastgør det med skruerne.
4.2 Indledende tænding
After battery installation, press the ON/OFF button to power on the device. The display will illuminate, indicating the device is ready for use.
5. Betjeningsvejledning
5.1 ON/OFF Function
- Tryk på 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 knap.
5.2 ZERO Function
- Vent both pressure ports to the atmosphere.
- Tryk og hold på ZERO/STORE button until the LCD displays "----", then release it. The manometer is now zeroed.
5.3 UNITS/LOC Function
- Tryk på UNITS/LOC knappen for at bladre gennem og vælge de ønskede måleenheder.
5.4 HOLD/MEMORY Function
- Hold læsning: Tryk på HOLD/MEMORY button to hold the current reading on the display. Press it again to resume measurement.
- Hukommelsesfunktion:
- 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.
- Til view stored data, press and hold HOLD/MEMORY until "LOC" is displayed. If needed, press UNITS/LOC til view other memory locations.
- To exit memory mode, press HOLD/MEMORY igen.
- To clear all data, press and hold HOLD/MEMORY until "CLR" is displayed, then press ZERO/STORE.
5.5 DAMPING Function
- Tryk og hold HOLD/MEMORY until "DAMP" is displayed, then release the HOLD/MEMORY knap.
- Trykke ZERO/STORE or UNITS/LOC to adjust the damping level from 1 to 8 (default is 3).
- To exit dampi tilstand, tryk på HOLD/MEMORY igen.
6. Vedligeholdelse
6.1 Rengøring
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 Udskiftning af batteri
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. Fejlfinding
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Enheden tænder ikke. | Dødt eller forkert installeret batteri. | Udskift batteriet, og sørg for korrekt polaritet. |
| Unøjagtige eller svingende aflæsninger. | 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. | Batteriet er lavt. | Udskift 9V batteriet. |
8. Specifikationer
- Model: 477B-3
- Rækkevidde: 0 to 200" wc (0 to 49.82 kPa)
- Nøjagtighed: ±0.1 % FS
- Husmateriale: Aluminium
- Hukommelse: 40 aflæsninger
- Strømkilde: 9V battery (DURACELL MN 1604, EVEREADY 522, or equivalent)
- Fabrikant: Dwyer
- UPC: 782568954475
9. Garanti og 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.
