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MERCOID

Mercoid is a brand of pressure and temperature instrumentation that has been part of the industrial controls landscape for decades. The line is now owned by Dwyer Instruments, a manufacturer of pressure, temperature, level, and flow measurement devices. Mercoid products are used in applications where pressure or temperature must be monitored or controlled in demanding environments, including hazardous locations. The brand's catalog includes pressure switches, differential pressure switches, temperature switches, and pressure transmitters. These devices are commonly found in industrial machinery, process equipment, and building systems. 3G Electric supplies the Mercoid line to plant engineers, maintenance managers, and procurement specialists worldwide. The product range covers explosion-proof and hazardous-location rated switches, indicating transmitters, and mounting accessories. Key technical attributes include set-point ranges from 10 psi to 500 psi on the SA1100 Series machine tool pressure switches, 1/4" FNPT pressure connections, and explosion-proof ratings on select models. The 3200G indicating transmitter offers 4 to 20 mA DC output with HART communication, ±0.075% of full scale accuracy, and an IP66/4X enclosure. Accessories such as the A-630 angle bracket support installation of smart pressure transmitters. 3G Electric maintains inventory of these Mercoid products and provides global logistics support. The company serves customers who require specific part numbers and technical specifications for replacement or new installations. This catalog page presents the Mercoid product families available through 3G Electric, with an emphasis on hazardous-location pressure switches and related instrumentation. The information is intended to help technical buyers identify the correct model for their application. For detailed specifications, refer to the individual product listings.

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About MERCOID

Mercoid is a brand of pressure and temperature instrumentation that has been part of the industrial controls landscape for decades. The line is now owned by Dwyer Instruments, a manufacturer of pressure, temperature, level, and flow measurement devices. Mercoid products are used in applications where pressure or temperature must be monitored or controlled in demanding environments, including hazardous locations. The brand's catalog includes pressure switches, differential pressure switches, temperature switches, and pressure transmitters. These devices are commonly found in industrial machinery, process equipment, and building systems. 3G Electric supplies the Mercoid line to plant engineers, maintenance managers, and procurement specialists worldwide. The product range covers explosion-proof and hazardous-location rated switches, indicating transmitters, and mounting accessories. Key technical attributes include set-point ranges from 10 psi to 500 psi on the SA1100 Series machine tool pressure switches, 1/4" FNPT pressure connections, and explosion-proof ratings on select models. The 3200G indicating transmitter offers 4 to 20 mA DC output with HART communication, ±0.075% of full scale accuracy, and an IP66/4X enclosure. Accessories such as the A-630 angle bracket support installation of smart pressure transmitters. 3G Electric maintains inventory of these Mercoid products and provides global logistics support. The company serves customers who require specific part numbers and technical specifications for replacement or new installations. This catalog page presents the Mercoid product families available through 3G Electric, with an emphasis on hazardous-location pressure switches and related instrumentation. The information is intended to help technical buyers identify the correct model for their application. For detailed specifications, refer to the individual product listings.

Common Applications

  • Oil and gas processing — Mercoid SA1100 Series explosion-proof pressure switches for hazardous-area pressure monitoring
  • Chemical plants — Mercoid 3200G indicating transmitter with HART communication for process pressure measurement
  • Machine tools — Mercoid SA1111E-A4-K1 pressure switch for hydraulic system pressure control in hazardous locations
  • Pump monitoring — Mercoid A-630 angle bracket for mounting smart pressure transmitters on pump discharge lines
  • HVAC systems — Mercoid pressure switches and transmitters for refrigerant and air pressure control
  • Industrial machinery — Mercoid SA1113E-S5-K2 pressure switch for high-pressure (30-500 psi) monitoring in explosive atmospheres

Frequently asked questions

Common questions about MERCOID from 3G Electric.

What are the pressure ranges available in the Mercoid SA1100 Series pressure switches?

The Mercoid SA1100 Series hazardous-location machine tool pressure switches are available with set-point ranges including 10 psi to 150 psi, 20 psi to 250 psi, and 30 psi to 500 psi. These ranges cover common industrial machine tool and process applications. Each switch has a single 1/4" FNPT pressure connection port. The series is designed for use in hazardous locations, making it suitable for environments where explosive atmospheres may be present. Specific models include the SA1111E-A4-K1 and SA1111E-S5-K2 (10-150 psi), SA1112E-A4-K1 and SA1112E-S5-K2 (20-250 psi), and SA1113E-A4-K1 and SA1113E-S5-K2 (30-500 psi).

What is the accuracy and output of the Mercoid 3200G indicating transmitter?

The Mercoid 3200G indicating transmitter provides a 4 to 20 mA DC output with HART communication. It has an accuracy of ±0.075% of full scale. The transmitter features a digital display and is housed in an aluminum enclosure with 17-4PH and 316 stainless steel fittings. It is explosion-proof rated and carries an IP66/4X environmental rating. The 3200G covers a range of -14.5 psi to 21 psi, making it suitable for low-pressure measurement and control applications. Screw terminals are provided for electrical connections.

Are Mercoid pressure switches suitable for hazardous locations?

Yes, the Mercoid SA1100 Series pressure switches are specifically designed for hazardous-location machine tool applications. They are explosion-proof rated, allowing them to be used in environments where flammable gases, vapors, or dust may be present. The switches feature a single 1/4" FNPT pressure connection port and are available in various set-point ranges. Typical applications include industrial machinery and process equipment where pressure monitoring or control is required in classified areas. The explosion-proof construction helps prevent internal sparks from igniting the surrounding atmosphere.

What accessories are available for Mercoid pressure transmitters?

Mercoid offers mounting accessories such as the A-630 angle bracket, which is designed for use with smart pressure transmitters. This angle-type bracket includes bolts for secure installation. It is suitable for industrial process control applications, including pump monitoring and HVAC systems. The bracket provides a stable mounting solution for transmitters in various orientations. Additional accessories may be available depending on the specific transmitter model. Consult the product documentation for compatibility.

What is the pressure connection size on Mercoid SA1100 Series switches?

The Mercoid SA1100 Series hazardous-location machine tool pressure switches have a single 1/4" FNPT pressure connection port. This connection size is common in industrial instrumentation and allows for easy integration with existing piping and tubing. The 1/4" FNPT port is suitable for pressures up to the maximum range of the switch, which can be as high as 500 psi depending on the model. Ensure that the mating fitting is compatible with the process fluid and pressure rating.

Does 3G Electric supply MERCOID products?

Yes — 3G Electric (S) Pte. Ltd. supplies MERCOID products. We stock the MERCOID catalog and supply genuine factory-original products with full manufacturer warranty and technical support.