PSD 40

Product Details:

Resolution 0.01 bar
Application Media Liquid / Gas
Sensor Type Pressure sensor
Humidity % 85% RH
Capacity 40 bar max
Connectivity Type Terminal block
Pressure Range 0 - 40 bar
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PSD 40 Product Specifications

Equipment Type Digital Pressure Switch
Current Range 4 - 20 mA output
Pressure Range 0 - 40 bar
Material ABS enclosure
Range 0 - 9999
Display Type Digital LED Display
Power Consumption 5 VA
Connectivity Type Terminal block
Accuracy 1% of F.S.
Temperature Range 0C to 50C
Protection IP65
Measurement Range 0 to 40 bar
Humidity % 85% RH
Capacity 40 bar max
Power Supply 220V AC 10%, 50/60Hz
Diameter 40 mm (dial size)
Sensor Type Pressure sensor
Application Media Liquid / Gas
Resolution 0.01 bar
Frequency 50/60 Hz

Product Description

Nominal torque / Nominal rated speed¹⁾ / max. speed

PSD 401: 0.8 Nm / 200 rpm / max. speed: 800 rpm at 0.3 Nm
PSD 403: 3 Nm / 50 rpm / max. speed: 200 rpm at 1.2 Nm

Positioning accuracy

± 1.8°

Output shaft

5 mm solid shaft or
8 or 14 mm hollow shaft with torque support

Positioning range

PSD 401: 4026 rotations
PSD 403: 986 rotations

Supply voltage

24 VDC ± 10 %

Protection class

IP 50 or IP 65 (optional)

Versatile Mounting and Robust Design

Equipped for both panel and wall mounting, the PSD 40 adapts to various installation sites with ease. Its sturdy ABS enclosure and compact form factor ensure durability and space efficiency, while the IP65 rating provides protection from dust and water, making it suitable for industrial and process environments.

Precision Measurement and Fast Response

Designed to monitor pressures between 0 and 40 bar, the PSD 40 offers a fine resolution of 0.01 bar, and a rapid response time of less than 150 ms. The digital LED display presents clear, real-time readings to support accurate process control and ensure safety. The relay output allows integration into control and alarm circuits.

Easy Operation and Reliable Performance

With an adjustable set point and user-friendly interface, configuring the PSD 40 is straightforward. Its wide operating and storage temperature ranges, along with 85% RH humidity tolerance, ensure dependable operation across challenging industrial settings. Terminal block connectivity simplifies installation and maintenance.

FAQ's of PSD 40:

Q: How do I mount the PSD 40 Digital Pressure Switch?

A: The PSD 40 supports both panel and wall mounting. Secure the unit using the provided mounting holes as per your chosen configuration, ensuring the pressure port is compatible with your pipe or vessel outlet. Installation should be conducted by qualified personnel to meet safety and operational standards.

Q: What media can the PSD 40 monitor, and in what environments does it work best?

A: This pressure switch is suitable for both liquid and gas applications, thanks to its robust ABS housing and IP65 protection. It operates effectively in industrial environments where dust and water resistance are critical, and is designed for indoor installations within the 0C to 50C temperature range.

Q: When should I use the relay output feature of the PSD 40?

A: The relay output (1NO+1NC, 5A @ 230V AC) should be used when you wish to activate alarm systems, control external equipment, or initiate safety interlocks when pressure set points are exceeded. The switch provides quick response (<150 ms) for timely action in process control scenarios.

Q: What are the benefits of the adjustable set point and digital display?

A: The adjustable set point allows precise control over switching thresholds, tailored to your application's requirements. The bright 4-digit, 7-segment digital LED display offers immediate and accurate pressure readouts, reducing misinterpretation and streamlining process adjustments.

Q: How do I connect the PSD 40 to my control system?

A: The PSD 40 uses a terminal block for electrical connections, accommodating 220V AC power supply and outputs. Follow the wiring diagram in the user manual, ensuring all connections are secure, and observe proper safety protocols to prevent electrical hazards.

Q: What is the measurement range and resolution of the PSD 40?

A: This pressure switch covers a measurement range from 0 to 40 bar, with a high-resolution display of 0.01 bar increments. This makes it suitable for both general and critical pressure monitoring applications.

Q: Where can I purchase and service the PSD 40 in India?

A: The PSD 40 is available through authorized distributors, exporters, suppliers, and service providers across India. For installation, technical support, or maintenance, contact one of these providers to ensure you receive genuine products and professional service.

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