The PSD-4 electronic pressure switch is designed for a wide range of industrial applications, offering flexibility, advanced monitoring features, and ease of integration. Here's a summary of its key features and benefits:

Applications:

• Machine Tools: Used in machinery requiring precise pressure control.
• Hydraulics and Pneumatics: Essential for pressure monitoring in hydraulic and pneumatic systems.
• Special Machine Building: Ideal for custom-built machinery with unique pressure requirements.
• Food and Pharmaceutical Industry: Suitable for hygienic environments, where pressure monitoring is critical for process control.

Special Features:

1. Advanced Condition Monitoring via IO-Link:
   The PSD-4 provides enhanced diagnostics and condition monitoring. It can communicate pressure and temperature data, along with diagnostics for system integrity, making it easy to spot defective components or abnormal conditions.

2. Higher Flexibility, Lower Inventory:
   The PSD-4 offers lower inventory requirements with fewer variants, due to its scalable analog output and customizable output signals. This enables its use in a wide range of applications with minimal stock complexity.

3. Easy Integration with Good Readability:
   The pressure switch features a large 14-segment display with red digits for easy visibility, even in bright environments. Additionally, the display and case can be rotated for optimal viewing angles.

4. Fast Parameterization via 3-Button Operation:
   Configuration is streamlined with a simple 3-button interface, providing an intuitive user experience. The display and menu are designed to follow the VDMA specification 24574-1, simplifying setup and reducing installation time.

Technical Benefits:

• Accuracy: With an accuracy of < ±0.5%, the PSD-4 offers reliable pressure measurements over extended periods.
• Long-Term Durability: Capable of enduring more than 100 million load cycles, ensuring long-term reliability in industrial environments.
• Self-Diagnostics: It includes self-monitoring capabilities that help identify potential issues before they cause failure.

This makes the PSD-4 a versatile, reliable solution for automation tasks, offering benefits in operational efficiency, system reliability, and ease of use.

Applications:

• Pressure Monitoring & Control: Used for monitoring and controlling pressure in industrial processes.
• Safety-Critical Applications: Common in chemical, petrochemical, oil and gas, power generation (including nuclear), water/wastewater, and mining industries.
• Handling Aggressive Media: Suitable for gaseous, liquid, highly viscous, or contaminated media, and operates in aggressive environments.
• Limited Space: Ideal for measuring points with limited space, such as control panels.

Special Features:

• No Power Supply for Switching Loads: The pressure switch can switch electrical loads without the need for an external power supply.
• Durability: The switch is housed in a robust enclosure made of aluminum alloy or stainless steel, with an IP66 and NEMA 4X rating, ensuring protection from dust, water, and harsh environments.
• Wide Pressure Ranges: The switch is capable of handling pressure settings from 0.2 to 1,000 bar, including vacuum ranges.
• High Repeatability: The switch offers a repeatability of the set point within ≤ 1% of span.
• Switching Power: Capable of switching up to AC 250 V, 15 A with SPDT or DPDT contacts.

Description:

• Specially Developed for Safety-Critical Applications: The pressure switch is designed to ensure reliable operation in applications where safety is paramount.
• High-Quality Manufacturing: The products are manufactured according to ISO 9001 standards, and each switch undergoes 100% testing.
• Enclosure Durability: The robust switch enclosure (available in aluminum or stainless steel 316L) is built to withstand harsh conditions, including high pressures up to 1,000 bar.
• Security: The terminal block is protected by a screw-on lid with a screw-type lock to prevent unauthorized access.
• Microswitch Integration: A microswitch is integrated to directly control electrical loads, capable of switching up to AC 250 V, 15 A.
• Customizable Contact Versions: Various contact versions are available depending on the application, such as hermetically sealed microswitches for corrosive environments, or DPDT versions for separate circuits.
• Robust Sensor Element: The switch uses a diaphragm element with an antagonist spring, making it highly robust and providing optimal performance.
• Safety Versions Available: The switch is available in SIL 2 or SIL 3-qualified versions for safety-critical applications.

This pressure switch is particularly beneficial in industries that require reliable and durable pressure monitoring and control systems under challenging conditions.

Diaphragm pressure switches are essential components in various industries, offering reliable pressure monitoring and control. Below is an outline of their applications, features, and special attributes:

Applications:

1. Pressure Monitoring and Control of Processes:

   • Diaphragm pressure switches play a critical role in managing and regulating pressures in industrial processes, ensuring safety and efficiency.

2. Safety-Critical Applications:

   • These switches are vital in industries where pressure regulation is crucial for safety, such as:
     • Chemical and Petrochemical Industries
     • Oil and Gas Industries
     • Power Generation (Including Nuclear Power Plants)
     • Water and Wastewater Management
     • Mining

3. Handling Aggressive Media:

   • These switches are used in environments involving gaseous and liquid media, including aggressive, highly viscous, or contaminated substances.

4. Special Environments:

   • Suitable for operation in harsh or aggressive environments that may involve exposure to corrosive or extreme conditions.

Special Features:

1. Durability and Protection:

   • The casing is made from 316L stainless steel, offering robust protection against corrosion.
   • It has an IP66 rating, ensuring protection against dust and water ingress.
   • NEMA 4X ensures resistance to harsh environmental conditions.

2. Wide Setting Ranges:

   • The diaphragm pressure switch has flexible setting ranges from 16 mbar to 600 bar, allowing for use in various applications, including vacuum ranges.

3. Intrinsic Safety:

   • It can be supplied in an Ex ia variant, ensuring intrinsic safety for use in hazardous environments.

4. Independent Switch Points:

   • Features 1 or 2 independent switch points, with high switching power (up to AC 250 V, 20 A), ensuring compatibility with different load requirements.

5. Repeatability:

   • Switch point repeatability is exceptionally high, with accuracy of less than 1%, ensuring reliability and consistency.

Key Benefits:

1. No Supply Voltage Needed:

   • The diaphragm pressure switch operates without the need for external supply voltage for the switching process, making it energy-efficient and suitable for applications where power sources are limited or not available.

2. High-Quality Manufacturing:

   • These switches undergo rigorous quality assurance, with 100% testing at each production step, ensuring that only the most reliable devices reach the market.

3. Versatile Media Compatibility:

   • The switch's diaphragm system is highly effective in handling a range of challenging media, such as viscous, contaminated, or crystallizing substances.

4. Customization:

   • Custom materials like PTFE, Monel, or Hastelloy can be selected for wetted parts, catering to specific requirements.

5. Safety Compliance:

   • For safety-critical applications, diaphragm pressure switches are available with SIL 2 or SIL 3 qualifications, ensuring compliance with functional safety standards.

Applications

• Pumps
• Compressors
• Other industrial control, monitoring, and alarm systems.

Special Features

• Adjustable on-site: The switch point can be set directly by the customer during installation or operation.
• Protection cap for switch point adjustment: This ensures the set point is protected from external influences.

Setting Ranges

• Pressure range (bar):
  • From -0.4 ... +7 to 6 ... 30 bar
• Pressure range (psi):
  • From -6 ...100 to 85 ... 425 psi
• Pressure range (MPa):
  • From -0.04 ... +0.7 to 0.6 ... 3 MPa

Electrical Rating

• AC 230 V, 50/60 Hz, 10 A

Description

• The PSM-520 pressure switch is designed for use in industrial systems, providing control, monitoring, and alarm capabilities.
• The switch point can be easily adjusted on-site according to the user’s needs.
• The instrument can handle electrical loads of up to AC 230 V, 10 A, making it suitable for a variety of industrial applications.

Mechanical pressure switch designed for safety-critical applications in various industries such as chemical, petrochemical, oil and gas, power generation (including nuclear power plants), and water/wastewater. This switch is especially suitable for environments with gaseous, liquid, aggressive, and highly viscous or contaminated media.

Key Features:

1. Applications:

   • Pressure monitoring and control of processes, particularly in safety-critical applications.
   • Industries served: chemical, petrochemical, oil and gas, power generation (including nuclear plants), water/wastewater management, mining, and other related sectors.
   • Suitable for gaseous, liquid, aggressive, and viscous or contaminated media.

2. Mechanical Design:

   • Enclosure: Robust, made from aluminium alloy, with a high protection rating of IP66 and NEMA 4X, ensuring durability in harsh environments.
   • Pressure Range: Can measure pressures from 16 mbar to 600 bar (including vacuum and combined pressure/vacuum ranges).
   • Switch Points: Equipped with 1 or 2 independent switch points, capable of handling high switching power up to AC 250 V, 20 A.
   • Switching Repeatability: Offers excellent repeatability, with a < 1% variation at the switch point.

3. Switching Mechanism:

   • No external supply voltage required for the switching process, which is a key feature for safety-critical applications.
   • The microswitches used for switching can handle high switching loads directly and are available with gold-plated contacts for lower power applications (e.g., for PLCs).

4. Special Features for Different Applications:

   • Adjustable Dead Band: A key feature for control processes, often replacing fixed dead band in some models.
   • Materials for Wetted Parts: Available in special materials like PTFE, Monel, and Hastelloy for use in aggressive media.
   • Flanged Process Connections: Ideal for measuring highly viscous, contaminated, or crystallising media.

5. Safety Certifications:

   • Options are available for SIL 2 or SIL 3 qualification, making them suitable for safety instrumented systems (SIS) in industrial environments.

6. Quality Assurance:

   • The switches are 100% tested and are traced at every step of production to ensure the highest standards of quality and reliability.

A2G-40 Differential Pressure Switch, which is used for monitoring air filtration and ventilation systems, especially in clean rooms, laboratories, and HVAC (Heating, Ventilation, and Air Conditioning) applications. This pressure switch monitors differential pressure (Δp) to ensure the proper function of filters, ventilators, and blowers.

Key Applications:

1. Dry, Clean, Non-Aggressive Gases (Typically Air):

   • Suitable for use with air or non-aggressive gases in applications such as ventilation and air conditioning systems.

2. Ventilator, Blower, and Filter Monitoring:

   • Used to monitor the condition of air filters, blowers, and ventilation systems, especially for systems in clean rooms and air-conditioning units.

3. Overpressure Monitoring:

   • Can monitor overpressure conditions in clean rooms, laboratories, and other controlled environments where maintaining a specific pressure is crucial.

Special Features:

• Easy to Install and Assemble: Designed to simplify setup, making it convenient to install and maintain.
• Very Reliable: High reliability ensures long-term operation with minimal risk of failure.
• Robust Case and Practical Design: Built to last, with a sturdy case that can withstand various environmental conditions.

Description:

• The A2G-40 differential pressure switch operates based on the differential pressure (Δp) and is typically used in ventilation ducts, air shutters, or similar environments.
• With multiple pressure range increments available, this switch offers flexibility in various applications.
• Known for its simple mounting process, this device is highly dependable, making it ideal for critical monitoring tasks in clean room and laboratory environments.