Company Contact Information
Dwyer Instruments, Inc. is headquartered in Michigan City, Indiana, USA, with additional offices in the United Kingdom, Houston (USA), and Australia. Multiple contact channels are provided including phone, fax, email, and websites for general inquiries, literature requests, technical support, and quotes.

Overview of Pressure Transmitters
Dwyer Instruments is a recognized leader in manufacturing HVAC and industrial pressure transmitters. Their product range covers very low differential pressures up to 10,000 psig, offering various enclosure types, accuracies, and process connections to meet demanding industrial applications.

New Product Lines: Series 626 and 628
- Series 626: Features a high accuracy of 0.25% full scale.
- Series 628: Offers 1% full scale accuracy.
Both series include NEMA 4X (IP66) rated enclosures with 1/2" female NPT conduit connections for easy installation. Wetted parts are made from 316/316L stainless steel, supporting pressure ranges from 0-15 psi up to 5000 psig. These transmitters are suitable for pumping systems, compressors, and wastewater filtration equipment.

Product Specifications Summary
The brochure includes detailed specifications for various series of pressure transmitters, categorized by application type such as industrial general purpose, heavy industrial, HVAC, sanitary, submersible, and specialty transmitters. Key parameters include:

• Pressure Ranges: From very low differential pressures (e.g., 0-5" w.c.) to high pressures up to 10,000 psi.
• Accuracy: Ranges from 0.10% to 1%, depending on the model and application.
• Wetted Materials: Primarily 316/316L stainless steel, 17-4 PH stainless steel, and specialty materials like Inconel® for corrosion resistance.
• Temperature Limits: Operating temperatures typically range from -40°F to 260°F (-40°C to 125°C), with compensated temperature ranges specified per model.
• Output Signals: Standard outputs include 4-20 mA, 0-5 VDC, 0-10 VDC, and other voltage signals.
• Electrical Connections: Options include terminal blocks, DIN connectors, multiconductor cables, and M-12 connectors.
• Process Connections: Various NPT sizes (1/4", 1/2", 3/4"), BSPT, sanitary clamps, and barbed fittings for tubing.
• Enclosure Ratings: Most transmitters meet NEMA 4X (IP66) standards; some models offer NEMA 6P (IP67) for submersible applications.
• Agency Approvals: Not explicitly detailed but implied compliance with industrial standards.

Additional Product Features and Options
- Some models offer bi-directional pressure measurement.
- Optional switches available on select transmitters.
- Various cable lengths and conduit options to suit installation needs.
- Specialized materials and designs for sanitary and submersible environments.

Customer Value Proposition
Dwyer emphasizes competitive pricing without compromising quality, encouraging customers to evaluate their products for value and performance in demanding industrial settings.

Supporting Literature and Catalogs
The brochure references multiple catalogs and handbooks available for free, covering complete product lines including engineering applications, building automation, proximity controls, and industrial gauges.