Mechanical Pressure Switch (General Application Type) AT511-7 Series

Mechanical Pressure Switch (General Application Type)
Model: AT511-7 Series

Introduction
AT511-7D/7DK pressure switch adopts SS316L bellow/diaphragm as measuring elements, which is suitable for corrosive gas and liquid measurement.

Features
■ OEM service
■ Measuring elements adopt SS316L bellow (diaphragm available upon request)
■ Wide operating temperature: -40 to 50℃
■ Adjustable set point range -0.1 to 6.3MPa
■ Suitable for using in corrosive media
■ Fixed/adjustable/narrow fixed dead band types are available for wide applications
■ Protection level IP65
■ Explosion-proof type available (option)

Main Specifications
▼Type
Normal: AT511-7D
Narrow dead band: AT511-7DK
▼Pressure connection
Material: Stainless steel
Thread spec.: G1/2”
▼Adjustable set point range
-1…0 to 6.3MPa
For detail please refer to adjustable set point range
▼Dead band
Fixed/Adjustable/Narrow fixed dead band
For detail please refer to adjustable set point range
▼Applicable fluid
Corrosive liquid and gas that compatible with SS316L
▼Ambient temperature
-40°C to +50°C
▼Media temperature
0°C to +120°C
▼Media viscosity
< 1 x 10-3m²/s
▼Vibration-proof performance
AT500-7D: Max. 40m/s²
AT500-7DK: Max. 20m/s²
▼Protection level
IP65

Other Specifications
▼Installation type
Bottom mount
▼Case
Die casting aluminum
▼Measuring elements
Bellow (standard) / Diaphragm (option)
All wetted part adopts SS316L, the others adopts SS321
▼Switch type
SPDT micro switch
▼Switching frequency
20 times/min
▼Max operating pressure
1／2／5／8.5MPa
(Vary from adjustable set point range)
▼Repeatability
≤1%
▼Contact rating
AC220V, 6A (resistive load)
▼Service life
2,000,000 cycles

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