Description

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

Atlantis Mechanical pressure switch AT500-7D/7DK pressure switch adopt NBR or SS316L diaphragm pressure sensor. This pressure switch is suitable for neutral gas, hydraulic oil, lubricating oil and light fuel oil pressure monitor and control.

Features

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

Main Specifications

• Type: AT500-7D (Normal), AT500-7DK (Narrow dead band)
• Pressure connection: Material: SS304 (standard), SS316／SS316L (option), Thread spec.: G1/4”(F)
  Other thread specification available upon request
• Adjustable set point range: 0…2.5 to 2500 kPa
  For detail please refer to adjustable set point range table
• Dead band: Fixed/Adjustable/Narrow fixed dead band
  For detail please refer to adjustable set point range table
• Applicable fluid: Liquid and gas that compatible with SS304
• Ambient temperature: -5°C to +40°C
• Media temperature: 0°C to +90°C
• Operating viscosity: < 1 x 10^-3m²/s
• Vibration resistance: AT500-7D: Max. 40m/s^2, AT500-7DK: Max. 20m/s²
• Protection level: IP65
• Explosion-proof level (option): Exed II CT5~T6

Other Specifications

• Installation: Bottom mount
• Case: Die casting aluminum
• Measuring elements: Diaphragm
  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: AC220V, 6A (resistive load)
• Service life: 2,000,000 cycles