INFURIDER YF-189A Digital Differential Pressure Gauge User Manual

1. Product voorbijview

The INFURIDER YF-189A is a high-precision digital differential pressure gauge designed for measuring positive, negative, and differential pressure. It features a large LCD screen with backlight for clear readings in various lighting conditions. This device is suitable for a wide range of applications including HVAC systems, air conditioning, ventilation, gas measurement, and laboratory research.

Belangrijkste kenmerken:

• High accuracy: ±0.3%FS with 0.001 resolution.
• Wide measurement range: ±2psi or ±13.79Kpa.
• 11 selectable pressure units: mmHg, inHg, ftH₂O, cmH₂O, inH₂O, KPa, mbar, bar, psi, Kgcm², ozin².
• Multi-functional modes: Data Hold, Differential (DIF) mode, Record (REC) mode for MAX/MIN/AVG values.
• Automatic shutdown after 25 minutes of inactivity to conserve battery life.
• Dual ports for connecting 4mm diameter hoses to test gas pressure in two containers.

Figuur 1: Voor- en zijkant view of the INFURIDER YF-189A with labeled components including LCD screen, ON/OFF button, Unit Switch, Record button, Hold Data button, DIF Mode button, Tube Connectors, Protection Cover, and Battery Door.

2. Inhoud van het pakket

Before using the device, please verify that all items listed below are present and in good condition.

• 1 x INFURIDER YF-189A Digital Differential Pressure Gauge with Strap
• 2 x AAA-batterijen
• 4 x Soft Hoses (1/8 inch / 3.18 mm quick connectors)
• 1 x Beschermtas
• 1 x Kleine schroevendraaier
• 1 x Gebruikershandleiding
• 1 x Metal Terminal

Figuur 2: Alle artikelen in het productpakket.

3. Instellen

3.1 Batterij installatie

1. Zoek het batterijcompartiment aan de achterkant van het apparaat.
2. Use the provided small screwdriver to open the battery compartment cover.
3. Plaats twee AAA-batterijen en let op de juiste polariteit (+/-).
4. Plaats het deksel van het batterijcompartiment terug en zet het vast met de schroef.

3.2 Slangen aansluiten

1. Identify the positive (+) and negative (-) pressure ports at the top of the device.
2. Connect the soft hoses (1/8 inch / 3.18 mm quick connectors) to the desired ports based on your measurement requirements.
3. Ensure the connections are secure to prevent leaks.

4. Gebruiksaanwijzing

4.1 In-/uitschakelen

• Druk op de AAN/UIT knop om het apparaat in te schakelen.
• Om het apparaat uit te schakelen, houdt u de knop ingedrukt. AAN/UIT totdat het display uitgaat.
• The device will automatically shut down after approximately 25 minutes of inactivity.

4.2 Eenheidsselectie

• Druk op de EENHEID button to cycle through the 11 available pressure units (mmHg, inHg, ftH₂O, cmH₂O, inH₂O, KPa, mbar, bar, psi, Kgcm², ozin²).
• Select the appropriate unit for your measurement.

4.3 Achtergrondverlichtingsfunctie

• Druk op de Achtergrondverlichting button (light bulb icon) to turn the LCD backlight on or off. This improves visibility in low-light conditions.

4.4 Data Hold-functie

• Druk tijdens de meting op de UITSTEL knop om de huidige waarde op het display vast te zetten.
• Pers UITSTEL again to release the data hold and resume live measurement.

4.5 Differential (DIF) Mode

• Druk op de DIF button to activate differential pressure measurement. This mode displays the difference between the two input pressures.
• Pers DIF again to exit differential mode.

4.6 Record (REC) Mode

• Druk op de REC button to enter recording mode. The device will start recording maximum (MAX), minimum (MIN), and average (AVG) pressure values.
• While in REC mode, you can cycle through MAX, MIN, and AVG readings by pressing the REC herhaaldelijk op de knop drukken.
• To exit REC mode, press and hold the REC knop.

5. Onderhoud

Proper maintenance ensures the longevity and accuracy of your INFURIDER YF-189A differential pressure gauge.

• Schoonmaak: Veeg het apparaat af met een zachte, droge doek. Gebruik geen schuurmiddelen of oplosmiddelen.
• Opslag: When not in use, store the device in the provided protective bag to shield the ports from dust and rust. Store in a cool, dry place away from direct sunlight and extreme temperatures.
• Batterij vervangen: Replace batteries when the low battery indicator appears on the display to ensure continuous operation and prevent data loss.
• Beschermhoes: Always use the ABS plastic protection cover over the tube connectors when the device is not in use to prevent damage and contamination.

Figure 3: The device features an ABS plastic cover to protect connectors and a lanyard for portability and durability.

6. Probleemoplossing

If you encounter issues with your INFURIDER YF-189A, refer to the following common problems and solutions:

• Apparaat gaat niet aan:
  • Controleer of de batterijen correct en met de juiste polariteit zijn geplaatst.
  • Vervang de batterijen door nieuwe AAA-batterijen.
• Display shows "ERR1" or "ERR2":
  • These error codes indicate that the measured pressure is outside the device's specified range (±6 Psi). Reduce the applied pressure or ensure the pressure is within the operational limits.
• Onjuiste metingen:
  • Ensure hoses are securely connected and free from kinks or blockages.
  • Verify that the selected unit is appropriate for the measurement.
  • Ensure the device is operating within the specified temperature range (0~40℃).
• Achtergrondverlichting werkt niet:
  • Check battery level. Low batteries may affect backlight functionality.

7. Specificaties

Figure 4: Detailed table of measurement units, their respective ranges, and resolutions.

8. Garantie en ondersteuning

INFURIDER provides a 365-day warranty for this product. If you have any questions, concerns, or require assistance with your INFURIDER YF-189A Digital Differential Pressure Gauge, please do not hesitate to contact INFURIDER customer support. Refer to the product packaging or the official INFURIDER webwebsite voor contactgegevens.