HIGH TEMPERATURE MODELS
Switches operating up to 150°C ambient temp. are available for specific applications. These switches are generally used with an external amplifier unit. This amplifier unit can be installed upto a distance of 10 meters at normal ambient temperature.
COLOUR BAND / SPECTRUM SENSORS
These sensors are available only is optical category. The Colour Mark Sensor can detect a preset colour band and the output will change-over. In spectrum sensors, the output voltage or current changes with changing colour bands. Details are given under separate heading
TEACH TYPE SWITCHES
Special inductive/optical switches are available in "Teach" type version to sense an object within specificied distance band. These are is available in M18 and above sizes.
WELD IMMUNE SWITCHES
Same model of inductive switches are available to work in highly electrical noisy area such as welding machine.
HIGH PRESSURE SWITCHES
High pressure inductive type proximity switches are available for various applications, espicially in field of hydraulic for pressure upto 500bar.
All METAL PROXIMITY SWITCHES
Inductive proxmity switches with all body of stainless steel includes front cap to meet special requirement, are available in M12, M18 and M30 sizes.
Special Function Sensors
Switches with special functions as given below areavailable against specific requirement.
LINEAR OUTPUT MODELS
Inductive / Capacitive / Optical / Ultrasonic type sensors are available with a linear output signal (4-20mA / 0-10 V DC) proportionate to object distance. Details are given under individual sections.
FAIL SAFE SWITCHES
Inductive type switches, used for critical applications are available in a special fail safe version. These are three wire DC switches and work with a specially designed micro-processor control unit. The controller continuously monitors healthiness of sensors and gives a signal if the sensor is not working. These models are available for normal as well as hazardous environment. These switches are available in M18 and above sizes.
Inductive type switches have maximum sensing gap defined for ferrous objects. The sensing gap reduces for other metals. Special models are available to sense only non-ferrous objects such as Al, Cu, Gold etc at the same distance as ferrous objects. These switches are available in M18 and above sizes in SW4051 and SW 4055 types. Details are given under separate heading in later sections.
SWITCHES WITH BUILT-IN TIMER
Switches above M18 size (DC or AC) provided with built-in timer function are available on request. In such switches, the output will change its state after the set time delay (ON Delay) or return to normal state after time delay (OFF Delay). This feature is available with all types of proximity switches except Magnetic.
LARGER SENSING AREAS
Switches with built-in multiple sensing heads to cover larger sensing areas for sensing special objects such as textile and bearing rings, Hollow objects , Pipes etc. These switches are supplied in custom made enclosures to suit specific requirement.