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Accessories-Switches / sensors / position indicators-494-ATEX-Reed

Accessories-Switches / sensors / position indicators-494-ATEX-Reed

Accessories-Switches / sensors / position indicators-494-ATEX-Reed

Product catalog summary
Overview: The document provides technical specifications and guidelines for magnetic position detectors designed for 'T' grooves, specifically the reed switch type, Series 494. These detectors are suitable for use in explosive atmospheres as per the ATEX directive 2014/34/EU.
Specifications:
  • ATEX Approval: II 1G Ex ia IIC T4 Ga, II 1D Ex ia IIIC T135°C Da, II 3G Ex nA IIC T4 Gc X, II 3D Ex tc IIIC T125°C Dc X.
  • Electrical Characteristics: Maximum switching power of 5 W, voltage range of 5 to 30 VDC, and maximum switching current of 100 mA. The detectors feature PNP wiring with reverse polarity protection but lack overload and short-circuit protection.
  • Physical Characteristics: Operating temperature ranges from -25°C to +70°C, with housing made of PA + GF overmoulding. The detectors have a degree of protection rated at IP67.
  • Signal Indication: A yellow LED diode lights up when contact is established.
Procedures and Recommendations:
  • For direct control of incandescent lamps, consider the real power of the cold lamp due to low resistance when switched on.
  • For leads longer than 10 m, a 1000 Ω resistor should be used to mitigate capacitive effects.
Accessories: Includes a detector position adjustment memory unit and compatible barriers and interfaces from manufacturers like PEPPERL & FUCHS and MTL.
Applications: The detectors are suitable for use in zones 0-20, 1-21, and 2-22, with specific type approval certificates provided for different classifications.
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Catalog excerpts

Accessories-Switches / sensors / position indicators-494-ATEX-Reed-1

MAGNETIC POSITION DETECTORS for "T" grooves reed switch type Detectors designed for use in explosive atmosphere zones 0-20, 1-21, 2-22, according to ATEX directive 2014/34/EU. FUNCTIONAL DESCRIPTION A permanent magnet (M) which is mounted on the piston of the air cylinder activates the reed switch of the non-contact magnetic position detector fastened on the outside of the non-magnetic cylinder barrel. DETECTED POSITION DETECTOR CHARACTERISTICS ATEX APPROVAL 00568GB-2016/R01 Availability, design and specifications are subject to change without notice. All rights reserved. MAX. SWITCHING POWER SWITCHING VOLTAGE MAX. SWITCHING CURRENT WIRING REVERSE POLARITY PROTECTION OVERLOAD PROTECTION SHORT-CIRCUIT PROTECTION VOLTAGE DROP (EN 60.947-5-2) CURRENT CONSUMPTION NOMINAL VOLTAGE INTERNAL CAPACITANCE INTERNAL INDUCTANCE HYSTERESIS BOUNCE TIME BREAK TIME SENSITIVITY REPEATABILITY WORKING TEMPERATURE HOUSING CABLE DEGREE OF PROTECTION (IEC 60529) PROTECTION CLASS SIGNAL INDICATION ELECTROMAGNETIC COMPATIBILITY (EMC) II 1G Ex ia IIC T4 Ga II 3G Ex nA IIC T4 Gc X II 1D Ex ia IIIC T135°C Da II 3D Ex tc IIIC T125°C Dc X 5W 5 to 30 VDC 100 mA PNP yes yes no no no no < 5 volt ≤ 1 mA* , ≥ 2 mA** 8,2 V 10 nF 400 µH 1 mm 1 mm 0,6 ms ≤ 0,6 ms 0,1 ms ≤ 0,1 ms 2,1 mTesla 2,1 mTesla < 0,2 mm < 0,2 mm - 25°C , + 70°C - 20°C , + 60°C PA + GF overmoulding PA + GF overmoulding PVC PUR IP67 IP65 / IP67 class III class III yellow diode (LED) which lights up when the contact is established EN 61000-4-2 ESD (electrostatic discharge): -CD/8kV AD EN 61000-4-3 radiated RF fields: 10 V/m (80 ... 2000MHz) EN 61000-4-4 electrical fast transients/burst: 2kV EN 61000-4-6 conducted RF fields: 10 V (0,15 ... 80 Mhz) EN 55011: class B CE, ATEX 1G/D, ATEX 3G/D CHOICE OF DETECTOR Use with barrier Max. values: U=15 V, I=50 mA, P=120 mW PVC lead, 5 m long 2 wires 0,14 mm2 stripped ends PUR lead, 5 m long 2 wires 0,14 mm2 stripped ends Protective cover supplied with detector Weight (g) Compatible cylinders: 50 STANDARD CATALOGUE NUMBER detector detector supplied with cable holding clip and adjustment position stop Detector designed for direct fitting to "T" cylinder grooves (2) Fastening kit required, see page 5 (1) ACCESSORIES AND OTHER ELECTRICAL CHARACTERISTICS: see following page All leaflets are available on: www.asconumatic

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Accessories-Switches / sensors / position indicators-494-ATEX-Reed-2

MAGNETIC POSITION DETECTORS FOR "T" GROOVES - REED SWITCH TYPE Cable 5 m long, 2 wires 0,14 mm2 stripped ends zones 0-20/1-21/2-22 2-22 type approval certificate no. DEKRA BVS 10 ATEX 023 (1) Compatible barriers and interfaces MAXIMUM ELECTRICAL CHARACTERISTICS AND PROTECTION OF MAGNETIC DETECTOR (REED SWITCH) l (mA) Note: The switching point must remain within the limits of the shaded area. Any excess voltage or power may damage the detector. INDUCTIVE LOAD PARTICULAR APPLICATIONS (valid for all models) • Detectors used for direct control of incandescent lamps: The capacity specified on the...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.