Capillary Hose Set for 4 Pa Measurement

This Capillary Hose Set (0554 1215) is built for accurate 4 Pa fine pressure measurements, crucial for HVAC techs checking heating systems or balancing airflow in sensitive environments. It helps ensure your diagnostics are spot-on, particularly when chasing those tiny pressure differentials that can cause system inefficiencies.

When you're dialling in a heating system, every pascal counts, and a reliable hose makes all the difference in getting a true reading on a chilly morning.

Best For

• HVAC service technicians performing heating system diagnostics.
• Installers balancing ventilation systems in commercial or residential buildings.
• Anyone requiring highly accurate, low-pressure measurements for sensitive applications.

Compatibility

This capillary hose set (0554 1215) is designed for use with compatible fine pressure probes and connection sets, such as the Testo Fine Pressure Probe (0638 0330) and the Hose Connection Set (0554 1203), for precise 4 Pa measurements. It's an accessory to instruments designed for checking heating systems and similar low-pressure applications.

If you're running a different model or brand of fine pressure instrument, check fittings and specs before ordering to ensure it’s a good match.

Features

• Accurate Low-Pressure Readings: Specifically designed to handle the nuances of 4 Pa differential pressure measurements, critical for system fine-tuning.
• Reliable Connection: Ensures a stable and leak-free link between your pressure probe and the measurement point.
• Essential Accessory: A crucial component for extending the reach and accuracy of fine pressure measurement instruments.

Technical Specifications

What's in the Box

• 1 x Capillary Hose Set (0554 1215) for 4 Pa measurement

Using It on the Job

1. Ensure your fine pressure probe and measuring instrument are calibrated and ready for use.
2. Connect one end of the capillary hose to your fine pressure probe or appropriate connection set. Hand-tighten connections firmly to prevent leaks, but avoid overtightening.
3. Attach the other end of the hose to the specific pressure tapping point on the heating or ventilation system.
4. Perform your 4 Pa pressure measurement according to the instrument manufacturer's guidelines, ensuring stable readings.
5. After use, carefully disconnect the hoses and store them in a clean, protected manner to prevent kinking or damage to the delicate internal bore.

Limitations & Safety Notes

• This set is designed for low-pressure applications only (e.g., 4 Pa measurements); do not use it for high-pressure refrigerant or hydraulic lines.
• Always handle capillary hoses carefully to avoid kinking or crushing, which can affect measurement accuracy.
• Ensure connections are clean and free of debris before attaching to prevent damage or inaccurate readings.
• Follow all Australian standards and Safe Work guidance when performing any pressure measurement tasks.

When dealing with such fine pressures, even a tiny bit of condensation in the hose can throw off your readings. Give your hoses a quick purge with dry air before connecting to ensure you're getting a true measurement, especially on humid days.

Pair With

Pair this capillary hose set with a compatible fine pressure probe (like the Testo 0638 0330) and a high-accuracy manometer for complete low-pressure system diagnostics. Check out our range of Test & Measurement tools for other essential gear.