product info

High Protection Communication Type Digital Pressure Switch (SP-25 Series)

SP-25 Series High Protection Communication Digital Pressure Switch is an advanced pressure monitoring and control device designed for industrial automation, smart manufacturing, and harsh working environments. Featuring an IP65-rated protective enclosure, the SP-25 Series provides excellent resistance against dust and water jets, ensuring reliable operation in demanding industrial applications.

  • Product Series :

    25: High Protection Communication Type
  • Signal Output Type :

    030: 1-channel NPN + 1 set of RS485 communication | 031: 1-channel PNP + 1 set of RS485 communication
  • Air Pressure Input Range :

    C:-101.3~101.3kPa(Low pressure type) | P:-0.101~1.000MPa(High pressure type)
  • Air Pressure fitting Type :

    C4H: Straight 4mm air tube fitting straight type | C6H: Straight 6mm air tube fitting straight type | C4L: Straight 4mm air tube fitting right-angle elbow | C6L: Straight 6mm air tube fitting right-angle elbow | M: Internal M5 | R2: Internal M5 + external R1/4 | RC: Internal RC1/8 (bidirectional) | R: Internal M5 + external R1/8
  • Product Overview

    Engineered for uncompromising reliability in demanding industrial environments, the SP-25 Series High Protection Communication Digital Pressure Switch combines rugged durability with smart factory connectivity. Built with an IP65 protection-rated enclosure, this controller effortlessly withstands dust ingress and multi-directional water jets, making it the perfect solution for harsh manufacturing zones. Beyond its physical resilience, the SP-25 seamlessly integrates into Industry 4.0 ecosystems via the standard MODBUS RS485 protocol, enabling centralized SCADA monitoring while intelligently retaining a traditional switching output for localized failsafe control.

    Product Highlights

    IP65 Washdown Protection

    Strictly complies with IP65 standards, ensuring the internal electronics are fully shielded against low-pressure water jets and heavy industrial dust, extending the lifespan in aggressive environments.

    MODBUS RS485 Integration

    Features native RS485 communication protocols allowing up to 32 discrete units to be daisy-chained for remote parameter configuration, continuous data reading, and centralized troubleshooting.

    Unmatched Application Compatibility

    Boasts a rich selection of optional accessories and connection fittings (from M5 to RC1/8), backed by a hybrid output architecture that preserves 1-channel traditional switching alongside the digital bus.

     SP-25 Series Pressure Switch

    Comprehensive Technical Specifications

    MODEL High-Protection
    Universal Gas Type
    High-Protection
    Universal Fluid Type
    (Low Pressure) (High Pressure) (Low Pressure) (High Pressure) (Ultra-High
    Pressure Type)
    Rated pressure
    range
    -101.3~101.3kPa -0.101~1.000MPa -101.3~101.3kPa -0.101~1.000MPa -0.101~2.500MPa
    Setting pressure
    range
    -105.0~105.0kPa -0.105~1.000MPa -105.0~105.0kPa -0.105~1.000MPa -0.105~2.500MPa
    Max withstand
    pressure
    500kPa 1.5MPa 500kPa 1.5MPa 5.0MPa
    Applicable
    Media
    Filtered air,
    Non-corrosive/Non-flammable gas
    Compliant with ISO8573-1:2010[7:4:4]
    Liquids or Gases Non-Corrosive to
    SUS304 and SUS316
    Power supply
    voltage
    12~24V DC ±10%
    Current
    consumption
    ≤45mA (With no load)
    Display
    Resolution
    Under
    Different
    Pressure
    Units
    kPa 0.1 1 0.1 1 1
    MPa - 0.001 - 0.001 0.001
    kgf/cm2 0.001 0.01 0.001 0.01 0.01
    bar 0.001 0.01 0.001 0.01 0.01
    psi 0.01 0.1 0.01 0.1 0.1
    mmHg 0.1 - 0.1 - -
    inchHg 1 - 1 - -
    Comparative
    Output *1
    NPN Open Collector Output
    Max load current: 100mA
    Max supply voltage: 30V DC
    Internal voltage drop: 1.5V or less
    PNP Open Collector Output
    Max load current: 100mA
    Max supply voltage: 24V DC
    Internal voltage drop: 1.5V or less
    MODBUS
    Function *2
    Yes
    Display
    Accuracy
    ±2% F.S.
    ±1 digits (Operating temperature 25±3°C)
    Repeatability ±0.2% F.S.
    ±2 digits
    Response time 2.0ms, 50ms, 100ms
    250ms, 500ms, 2000ms
    3000ms, 5000ms Optional
    Display 3 color (Red/Green/Yellow Orange) Display (Sampling rate: 4 times/1sec)
    Temp.
    Characteristics
    ±2% F.S. detected pressure (25°C) at temperature range of 0~50 °C
    Operating
    Environment
    0~50°C (No condensation/icing) ; 35~85%RH (No water droplets)
    Storage
    Environment
    -10~50°C (No condensation/icing) ; 35~85%RH (No water droplets)
    Protection IP65
    Pressure port M5 Female Thread R2: Ext 1/4, Int M5
    S: SCR1/4 face-seal, compatible with VCR 1/4
    Weight 70g 110g
    Accessories 1 terminal power cable, 1 user manual

    Examples of Supported General Media

    • • General Compressed Air
    • • Nitrogen (N2)
    • • Argon (Ar)
    • • Vacuum Suction Lines
    • • Clean Dry Air (CDA)
    • • Environmental Control Gases
    • • Carbon Dioxide (CO2)
    • • Non-corrosive Gases
    • • Inert Industrial Gases

    Circuit Wiring Diagram & RS485 Integration

    Industrial network topology relies on correct RS485 polarization. Ensure the White wire (485A) and Orange wire (485B) are consistently routed throughout your daisy chain to guarantee stable remote reading from the upper PLC, while leveraging the Black wire for immediate local load switching.

    Wiring Definitions & Bracket Accessories:

    • • 5-Core Connection: Brown (DC+), Black (OUT1), White (485A), Orange (485B), Blue (DC-).
    • • MODBUS Bus: White/Orange pair handles bi-directional data flow for models 030/031.
    • • Bracket Mounts: Compatible with specific XP-BT-04 (L-Type) and XP-BT-05 (Z-Type) metal brackets.
    • • Panel Arrays: XP-PA-03 bracket securely mounts the IP65 body into control panels.
     SP-25 MODBUS Pressure SensorSP-25 RS485 Pressure Switch

    Specialized Application Scenarios

    The SP-25 bridges the physical toughness required on the factory floor with the digital intelligence necessary for centralized enterprise management:

    Harsh Environment Automation The IP65 rated enclosure perfectly withstands moisture, coolant splashes, and heavy airborne dust found in metalworking and heavy machinery sectors.
    Smart Factory Central SCADA Utilize MODBUS RS485 to connect up to 32 high-protection switches to continuously harvest real-time pipeline pressure metrics for preventative maintenance.
    CNC Machining Centers Deploys flawlessly next to active milling machines where standard sensors fail, providing reliable pneumatic tool clamping confirmation.
    Redundant Safety Systems While the RS485 logs historical pressure drops to the server, the retained 1-channel NPN/PNP output instantly halts machinery upon detecting critical vacuum loss.
    Application Image 1 Application Image 2 Application Image 3 Application Image 4 Application Image 5 Application Image 6

    Frequently Asked Questions (FAQ)

    Q: What does the IP65 rating on the SP-25 mean in practice?

    A: The IP65 rating signifies that the switch enclosure is completely "dust tight" and protected against "low-pressure water jets" from any direction. This makes it highly reliable in wet, dusty, or washdown-heavy factory environments.

    Q: How many devices can be connected via the MODBUS RS485 network?

    A: Using the standard MODBUS protocol, you can reliably interconnect up to 32 units on a single daisy-chain bus, streaming data directly back to your central upper computer or PLC for comprehensive smart manufacturing integration.

    Q: Why does the SP-25 retain a traditional switch output alongside RS485?

    A: Retaining the 1-channel discrete output ensures absolute failsafe operation. It guarantees that critical hardware thresholds can trigger immediate local safety actions, even if the industrial network experiences latency or downtime.

    Company Advantages & Factory Strength

      Factory Facility Production Line Quality Control
    Company Certifications Company Awards Global Delivery
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