Accessories-Switches / sensors / position indicators-494-Magneto resistive

Product catalog summary

Detector Characteristics
The document outlines the characteristics of magnetic position detectors designed for use in explosive atmospheres, compliant with ATEX directive 2014/34/EU. Key specifications include:

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.
Maximum Switching Power: 3 W.
Switching Voltage: 10 to 30 VDC.
Maximum Switching Current: 100 mA.
Wiring: PNP with reverse polarity protection.
Protection: Overload and short-circuit protection available.
Voltage Drop: Less than 2.5 volts.
Current Consumption: ≤ 1 mA or ≥ 2 mA, depending on configuration.
Nominal Voltage: 8.2 V.
Internal Capacitance and Inductance: 140 nF and 400 µH respectively.
Hysteresis: 1 mm.
Switching Frequency: Greater than 6000 Hz.
Sensitivity: 2 mTesla.
Response Time: 30 ms.
Repeatability: Less than 0.2 mm.
Working Temperature: -25°C to +70°C or -20°C to +60°C.
Housing: PA + GF overmoulding.
Cable: PVC.
Degree of Protection: IP67 or IP65/IP67.
Protection Class: Class III.
Signal Indication: Yellow LED lights up when contact is established.
Electromagnetic Compatibility: Compliant with EN 61000 standards.
Certification: CE, ATEX 1G/D, ATEX 3G/D.

Functional Description
The detectors operate by detecting the magnetic field generated by a permanent magnet mounted on a piston. This field causes a change in the resistance of semiconductors, generating a switching signal. They are static, non-contact proximity switches designed for air cylinders with built-in permanent magnets.

Connection and Electrical Protection
The detectors are connected via a PVC lead outlet with stripped ends. They are protected against short-circuits if the output current is limited to 0.1 A. Proper wire connection is crucial to prevent operational failure or damage. A protection diode is recommended for inductive loads.

Accessories
Accessories include a detector position adjustment memory unit and compatible barriers and interfaces from manufacturers like PEPPERL & FUCHS and MTL. The document also lists type approval certificates and classification zones for the detectors.

Catalog excerpts

Accessories-Switches / sensors / position indicators-494-Magneto resistive-1

MAGNETIC POSITION DETECTORS for "T" grooves magneto-resistive (MR) Detectors designed for use in explosive atmosphere zones 0-20, 1-21, 2-22, according to ATEX directive 2014/34/EU. Static non-contact proximity switch on air cylinders equipped with built-in permanent magnets. FUNCTIONAL DESCRIPTION When the permanent magnet which is mounted on the piston approaches the detector the magnetic field it generates causes the semiconductors’ resistors to change. This current variation increases the resistance and a switching signal is generated. DETECTOR CHARACTERISTICS ATEX APPROVAL 00569GB-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 SWITCHING FREQUENCY SENSITIVITY RESPONSE TIME REPEATABILITY WORKING TEMPERATURE HOUSING CABLE DEGREE OF PROTECTION (IEC 60529) PROTECTION CLASS SIGNAL INDICATION ELECTROMAGNETIC COMPATIBILITY (EMC) CERTIFICATION i without signal II 1GEx 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 3W 10 to 30 VDC 100 mA PNP yes yes no yes no yes < 2,5 volt < 10 mA ≤ 1 mA* , ≥ 2 mA** 8,2 V 140 nF 400 µH 1 mm 1 mm > 6000 Hz 2 mTesla 2 mTesla 30 ms < 0,2 mm < 0,2 mm - 25°C , + 70°C - 20°C , + 60°C PA + GF overmoulding PA + GF overmoulding PVC PVC 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 PVC lead, 5 m long 3 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 (1) Detector designed for direct fitting to "T" cylinder grooves (2) Fastening kit required, see page 5 ACCESSORIES AND OTHER ELECTRICAL CHARACTERISTICS: see following page All leaflets are available on: www.asconumatics.

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Accessories-Switches / sensors / position indicators-494-Magneto resistive-2

MAGNETIC POSITION DETECTORS FOR " T " GROOVES - MAGNETO-RESISTIVE (MR) Cable 5 m long, 2 wires 0,14 mm2 stripped ends zones type approval certificate no. DEKRA BVS 10 ATEX 023 (1) Compatible barriers and interfaces ELECTRICAL PROTECTION • Output protected against short-circuit as long as the output current is restricted to 0.1 A. • Improper wire connection may prevent the detector from operating or even destroy it. • It is recommended to install a protection diode (mounted in parallel) on an inductive load in spite of the internal protection. 2 wires (for barrier protection) ● CONNECTION OF MAGNETO-RESISTIVE...

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