IDEM's Standalone Coded Non Contact Switches have been developed
as a standalone mountable device to provide a high level of fault
detection and functional safety.
They can be mounted to guard doors to provide and maintain a
high level of functional safety without the need to connect to
external safety evaluators.
They have their own internal monitoring system and use force
guided mechanical contacts and will maintain PLe/Category 4
(ISO13849-1) even with switches connected in series.
They are offered in high specification plastic or stainless steel
housings and can be used in virtually any environment including
high pressure cleaning following contamination from foreign
particles.
The housings are compact and easy to fit on less than 40mm
frame sections.
The PSA (plastic) switch and the MSA (Stainless Steel 316) switch
both have IP69K ingress protection and are suitable for most
detergent wash down applications. The MSA (Stainless Steel 316)
switch has a Mirror Polished Surface Finish (Ra4) and is suitable
for CIP and SIP cleaning applications.
Dual Actuator versions are also available for use with "double door"
guards.
The typical sensing distance "on" is 12mm with wide tolerance to
guard misalignment after setting.
SAFETY RELIABILITY (ISO 13849-1) PLe Cat. 4:
All standalone switches employ 2 Force Guided Mechanical Relays
and incorporate internal checking to ensure both relays are
operational after each safety demand. If one relay fails to open or
becomes inoperative the switch will lock out safe. Switches can be
connected in series to maintain PLe/Category 4 to ISO13849-1.
