Description

Mechanical Pressure Switch (High Switching Frequency Type) AT500-7 Series

Atlantis Mechanical pressure switch AT500-7DEx adopt NBR or SS316L diaphragm pressure sensor. ATLANTIS Mechanical Pressure Switch AT500-7DEx is suitable for neutral gas, hydraulic oil, lubricating oil and light fuel oil pressure monitor and control. With its explosion-proof design, AT500-7DEx can apply to media measurement in hazardous environment.

Features

• OEM service
• Explosion-proof pressure switch
• Suitable for low pressure control and monitor
• High sensitivity – switching frequency up to 40 times/sec
• Pressure sensor adopts NBR/SS316L diaphragm
• Fixed/adjustable dead band types are available for wide applications
• Adjustable set point range 0 to 2.5MPa
• Protection level IP65

Main Specifications

• Pressure connection: Material: SS304 (Standard), SS316／SS316L (option), Thread spec.: G1/4”(F)
  Other thread specification available upon request
• Adjustable set point range: 0 to 2.5 to 2500kPa
  For detail please refer to adjustable set point range
• Dead band: Fixed/Adjustable dead band
  For detail please refer to adjustable set point range
• Applicable fluid: Liquid and gas that compatible with SS304
• Ambient temperature: -5°C to +40°C
• Media temperature: 0°C to +90°C
• Media viscosity: < 1 x 10^-3m²/s
• Vibration resistance: Max. 40m/s²
• Protection level: IP65
• Explosion-proof level: Exed II CT5~T6

Other Specifications

• Installation: Bottom mount
• Case material: Die casting aluminum
• Measuring elements: Diaphragm body material: NBR／SS316L, Diaphragm case material: Ly12／SS304
• Switch type: SPDT micro switch
• Switching frequency: 10 times/min, 40 times/min
• Max operating pressure: 0.05／1.5／4／5MPa (Vary from set point range)
• Repeatability: ≤1.5%
• Contact rating: DC250V, 0.25A (resistive load, @60Wmax), AC250V, 5A (resistive load, @1250Wmax)
• Service life: 2,000,000 cycles