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HPM288S Intelligent 4-20mA Relay Type Digital Pressure Switch

Switch Type: 2×SPDT
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he HPM288S Explosion-Proof Pressure Switch is engineered with a high-performance silicon piezoresistive pressure core, which is complemented by a high-precision A/D converter and microprocessor for advanced signal processing. This design allows for on-site display and outputs one analog signal along with two switching signals, making it highly versatile for a wide range of industrial applications.

This pressure switch is ideal for sectors such as process control, petroleum, chemical, metallurgical, and mining industries. It seamlessly integrates pressure measurement, display, output, and control functionalities, ensuring reliable operation in critical environments.

The HPM288S complies with stringent standards for explosive atmospheres, including GB3836.1-2010 and GB3836.2-2010. Its robust construction features a flameproof Enclosure "D" with explosion-proof markings Exd II CT6, ensuring safety in hazardous conditions. The sensor operates effectively under specific environmental parameters: altitudes below 2000m, ambient temperatures ranging from -10°C to +60°C, and relative humidity levels up to 90% at 25°C.

In summary, the HPM288S offers precise pressure measurement and dependable performance in explosive environments. Its advanced features and robust design make it a reliable choice for various industrial applications.



Features


  • Segregation explosion-proof Exd II CT6 Gb, explosion-proof number CNEx19.4440
  • Switching value can be set arbitrarily from zero scale to full scale
  • Shell with action nodes light emitting diode, easy to observe
  • Key adjustable and field setting various parameters, easy to operate
  • Two-way control point relay output
  • Analog output (4-20mA) optional



Technical Parameters


Pressure Range

-100kPa…0~1kPa…100MPa

Overload

1.5x of full scale

Output Signal

4~20mA + relay

Power Supply24VDC(12~30VDC)

Accuracy

±0.5%FS(standard),±0.25%FS (Option)

Long-term Stability

±0.2%FS/year

Temperature Coefficient 

±0.03%FS/℃(Reference 25℃)

Working Temperature

-30~85℃

Protection Grade

IP65

Electrical Connection

Cable gland (M20*1.5)

Process Connetion

M20*1.5,G1/2,G1/4 NPT1/2 etc.


Our product philosophy is specialization, customization, and intelligence.

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    Phone : +86-13270442058
    E-mail : info@hjsensor.com
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