Description
Product Overview
The Dwyer Instruments hemispherical pressure probe is engineered for precise airflow measurement in HVAC and industrial settings. Constructed from high‑impact polymer, the probe features a durable hemispherical tip that resists damage and maintains calibration over time. Certified to AMCA and ASHRAE standards, it offers two diameters across eleven models, ensuring compatibility with a wide range of duct sizes. Key specifications include dimensions of 10.3 x 4.8 x 0.5 inches, a weight of 3.2 ounces, and model number 1077890.
Usage
Designed for engineers, technicians, and facility managers, this probe excels in duct testing, ventilation assessments, and airflow balancing. Its direct‑reading velocity charts simplify on‑site calculations, while the built‑in air velocity calculator reduces the need for separate tools. Whether installing new HVAC systems or performing routine maintenance, the probe delivers consistent results in both commercial and industrial environments.
Why Choose Us
Dwyer Instruments combines decades of expertise with rigorous quality control to produce instruments that stand up to the toughest conditions. The hemispherical tip is virtually indestructible, ensuring long‑term accuracy. Our products are backed by comprehensive warranties and calibrated to meet industry standards, giving you confidence in every measurement.
Key Features
- Hemispherical tip designed to withstand harsh handling and extreme conditions
- Meets AMCA and ASHRAE codes for reliable, certified performance
- Integrated air velocity calculator for quick on‑site data analysis
- Direct‑reading velocity charts eliminate the need for additional reference tools
- Lightweight, compact design for easy transport and installation
FAQ
What duct sizes are compatible with this probe?
The probe is available in two diameters, covering a broad range of standard duct dimensions. Refer to the model specifications for exact size compatibility.
How often does the probe need calibration?
Calibration is recommended annually or after any impact event. Dwyer provides calibration services and certified labs for accurate adjustments.
Can the probe be used in high‑temperature environments?
Yes, the probe’s polymer housing is rated for temperatures up to 150°F (65°C), making it suitable for most HVAC applications.
Is the velocity calculator compatible with digital data loggers?
The calculator is a built‑in analog tool; however, measurement data can be manually entered into any digital logger for record‑keeping.
What warranty does Dwyer offer on this product?
Dwyer Instruments provides a one‑year limited warranty covering manufacturing defects and material failures.
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