Atex Electrical Safety and Interlock Switches

Idem Safety Switches
Atex Switches
IEC EX Switches
Explosion proof Switches
Atex Zone 1, 2, 21, 22 Certified Switches
Mechncail Interlock and Safety Switches
Non COntact Switches

Solenoid Switches for Steel Plant, Mines, and Ports

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Pintsch Tiefenbach
Solenoid Switches for Steel Plant, Mines, and Ports
Heavy Duty
High temperature.
General Information
• Contact-free actuation thanks to
permanent magnets
• Maintenance-free
• High rupturing capacity
• Wide temperature range
• Suitable for any installation position
• High responsiveness
up to max. 30 m/s
• Long service life of 109 switching cycles
• Virtually no inertia
• With cable set or cable compartment
• Cable lengths of 2 m, 5 m, 10 m, 15 m etc
Cable:
standard Ölflex (oil-resistant),
silicon (temperature-resistant up to 180 °C),
Purwil (UV-resistant)

Application
The switches are used as magnet-sensitive, non-contact pulse and
latching switches.
Components and mode of functioning
The solenoid switches consist of cast-resin insulated inert gas contacts
that are integrated in a corrosion-proof switch housing. By moving
a magnet passed the switch the contact closes or opens. During the
closing procedure the magnetic field increases in a square progression
while the gap between the contact studs becomes increasingly
smaller and then the contacts close with snap action. Due to the small
distance between the contact studs and their low mass the contacts are
switched with virtually no inertia.
Pulse switch (monostable)
In this switch design the switch is actuated for as long as it is influenced
by the magnetic field. When removing the magnet the switch returns to
its resting position.

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Rail Wheel Sensors And Switches For Rail Mounted Machines

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Pintsch Tiefenbach
Wheel Sensors.
Train Wheel Location.
Rail Mounted Crane Wheel Location Sensors.
Rail Mounted Crane Wheel Location Switch.
Rail Mounted Wagon Location.
Train Location and Position Control Sensors.
RMQC Location Sensors.
Location Sensors for Wagons in Mines, Steel Plant, Power PLant and Port Applications.
Non Contact and Activation by Wheel of the Crane, Railway, Train or Wagon.
Robust and reliable.
Out Door duty.
No effect on rail.
No effect of rail currents, radio frquency, harmonics or any other.
Compact and easy to install.
Weatherproof.

For More information Just send us an e mail.

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Inductive Proximity Sensors For Steel Mines Petro Chemical

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Advanced Inductive Proximity Switches for Steel Plants, Chemical, Fertilizer, Process, Mines, and Related applications.

For operations in Ambient Temperature 100*C or 125*C, for example extremely close to Ladle or Hot Metail Applications in Steel PLants or In Chemical Cracker Plants in Oil and Petro Processing.
.
A ,,shielded" or ,,flush' proximity switch will not be affected by surrounding metal.
An ,,unshielded' or ,not flush" proximity switch must have an open space around the active face.
d >d d Steel shielded shielded If proximity switches are installed opposing one another, the op posing switches must be installed with a spacing of 3 x the switch diameter between them.
Installation side by side To avoid interference in side by side installations a minim um clearance distance between the switches must be observed.> 3 x d
F F
Steel unshielded
F = free zone d > 3 x d
F F > 2d Steel unshielded F = free zone
d a d a d > 3 Sn Measuring plate For shielded side by side installations the interspace is
a > d ( interspace > diameter> ) If unshielded proximity switches are to be installed side by side the following spacing must be observed: a > 2 d (interspace > 2 x diameter) Cable Installation
To avoid pick up of induced voltage and current peaks, connecting wires for proximity switches should be installed separately from motor-magnet or valve-wires Cable length
Extremely long cables will add a capacitive bad to the output and increase interference. Cables for AC-and DC-switches should not exceed 100 m (300 ft) substantially. Cables for NAMUR-switches should not exceed 250 m. (750 ft)
Magnetic fields Strong magnetic fields may increase the sensing range or even trigger off a proximity switch. Radio frequencies may also influence a
proximity switch. At installations with strong sources of radio interference the proximity switch and cable should be shielded. Actuating area The actuating area is a limited zone in front of the active face of a proximity switch. Within this area a target will be detected and turned into a switching signal'. Sensing range a.) Nominal sensing range Sn The nominal sensing range Is the value obtained when (he ambient temperature is held at 20 ~C and voltage between 12-24 V. Under
these conditions the switching point must be within a tolerance of 10 %.
b) Real sensing range Sr This is the actual switching distance for an individual proximity switch lt is measured at nominal voltage and ambient temperature of 20 ºC and will be between 90 % and 110% of Sn.

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Level Switches for Steel, PLant, Mines, Petro, Chemical

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Select from a Wide Range of Level Switches for All Applications in Steel PLant, Mines, Power PLants, Nuclear Power Plants, and other Industrial applications like Petro and Chemical.

Extremely reliable.
Several options.
High temperature versions.

7.1 Application:
The maintenance-free level switch is used for
monitoring the level of liquids in open or closed,
pressureless tanks. It is nearly insensitive to external
interferences and resistant to non-flammable hydraulic
liquids.
7.2 Construction and operation:
The permanent magnet built-in in the swimmer is
contactlessly engaged the solenoid switches and the
visual display
The switches and the visual display are added to the
by-pass pipe with high-grade steel ribbons.
The switches are adjustable in the height so that low
switching distances between the switches are possible.
The visual display does not have any connection with
the medium and is operated with the swimmer magnet.
Magnet flaps are put on in a pipe (IP68) locked
hermetically so that the filling level is reported as a
yellow ribbon.
7.3 Technical data:
Length of immersion tube (L) : 300 bis 3000 mm
contacts: random number -
bistable
Working life: 109 switching operations
Ambient temperature:: -20º C to 125º C
Protection acc.: IP 65 to DIN 40050
Immersion tube: stainless steel 1.4571
Float: stainless steel 1.4571
Weight: 14,5 Kg 1000mm
± 0,5 Kg / 100mm
Contacts bistable
WK421K219 (potential free) change-over
max. switch capacity: 20W / 20VA
max. switch current: 0,5 A
• Vertical installation at the outside
• Adjustable switching points
• Contacts change-over
• Small switching distances possible
• With visual display
• Contactless actuation
• Rugged, maintenance-free version

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