Inductive proximity switches - Applications
Climatic proofed switches
The TROPICAL switches series IGMF are anticipated for applications in corrosive environment. They are stable particularly at frequent temperature changes and simultaneously high humidity. The permanent work in carwashes is permissible. The high corrosion resisting at simultaneously high mechanical loading capacity is reached through the combination of PTFE and titan stabilized stainless steel. The PTFE-hoods are sealed through fluoroelastomers (FPM) O-rings surely. The PTFE- /Silicone connecting cable is poured within the housing and freed over a double seal from the housing. Cable lengths up to 20 m are available. The installed LED’s are shining through the cable side cap and don’t break out the case.
120 °C-Special switches
The inductive PTFE switches series IGFW and INFW are made entirely of PTFE. The housing cover is securely sealed with a fluoroelastomer (FPM) O-Ring. These sensors are disigned for particularly difficult an aggressive environmental conditions. Through the fixed PTFE cables the sensors gets the protection class IP 68 and therefore they can be used in damp an aggressive environments as well as under water (oil). The clamp (Z00125) is made of PTFE and the mounting screws are made of stainless steel.
Inductive switches up to 160 °C
Inductive compact devices for ambient temperatures up to 160 °C are available flush and non-flush in the standard designs M18 and M30. These sensors are used directly in the hot zone without additional cabling requirements. They only need the usual 24VDC voltage supply and provide a PNP switching output. The material used is the rugged stainless steel housing combined with high temperature resistant PEEK plastic. The PTFE cable is, of course, also temperature-resistant and connected to the sensor using a stainless steel screw connection.
Surface switches IFE
The switches are build as flat sensors. They are used particularly to detect moving sheet metal or steel rods on conveyor belts. The complete sensor is covered by PVC plates, which make the sensor moisture resistant to IP 67. The IFE switch is mounted on PVC supports that stand on an aluminium base plate 3 mm thick. This aluminium base plate shields the IFE switch from Ferromagnetic interference at the base. The number of supports depends on the overall lenght of the IFE switch with supports at average centres of approximately 200 mm. Connecting cables of the IFE switch can be changed after disconnecting the PG-plug. The overall height can be changed by cutting the length of the supports. Reduced overall height affects the operating distance (sn). The IFE switches are self-contained with integral amplifier. The switching distance is adjustable by potentiometer.
Metal face switches
The inductive proximity switches series IGVU are used in areas with heavy-duty mechanical loads at the sensor´s face or where seals between face and housing cannot be used. Chips hitting the front or frequently changing coolants or lubricants do not dimish the function of these proximity switches.
Metal face switches are manufactured from stainless steel and are one solid piece. They detect iron and steel through the metal front face.
Amplifiers
Switching amplifiers are designed for induction sensors for which it is necessary to separate the sensor coil from the amplifier, e. g. for operating temperatures above 120 ºC or for sensor coils which must be exchanged due to frequent damage. The switching amplifiers work statically, that is, if the sensor coil is permanently damped, the switching output also remains activated. Switching interval and hysteresis (IKM 120 GPP, IU 130…) can be set on the amplifier. The sensor cable may have a length of up to 20 m.
Dust-Ex sensors
IGEX and IDEX are sensors for detecting metals in the Ex area zone 20 and zone 22 according to ATEX. Devices can be delivered in the standard configurations M12, M18 and M30. For large switching distances there are configurations with diameters of 80 mm to 160 mm.
Ex-amplifiers
The amplifiers for inductive sensors are intended for rail mounting installation.
