Data Sheet «Simple Apparatus» conformity to ATEX 947

Product catalog summary

Overview: This document is a technical data sheet for Trafag's pressostat, a pressure switch device, which conforms to ATEX 947 standards for use in potentially explosive atmospheres. It highlights the compact design, rugged housing, and IP65 protection, allowing for versatile mounting positions.

Applications: The pressostat is suitable for use in zones at risk of explosions, classified as 'simple apparatus' under ATEX guidelines.

Features: Trafag is a Swiss-based supplier known for high-quality sensors and monitoring instruments. The pressostat features a piston measuring principle with a repeatability of ±1.0% FS, and it operates within a measuring range of 1 to 600 bar. It supports media temperatures from -30°C to +150°C, depending on the O-ring material.

Technical Specifications:

Output Signal: 1 Floating change-over contact (SPDT)
Ambient Temperature: -25°C to 70°C
Switching Differential: Not adjustable
Approval: EN60730-1/EN60730-2-6, EN60079-0, EN60079-11 for Zone 1, 2, 21, and 22

Optional Accessories: Ex-i barriers are available for intrinsically safe applications, transmitting binary signals from hazardous to safe areas.

Ordering Information: The document provides a type code for custom builds, including switch point indicators and microswitch options with gold-plated contacts.

Specifications:

Accuracy: Repeatability ±1.0% FS, Scale accuracy ±2.0% FS
Environmental Conditions: Humidity max 95% relative, Vibration 5-100 Hz, Shock 50g/11ms
Mechanical Data: Sensor material 1.4435, Housing AlSi10Mg/epoxy coated, Weight ~710g
Electrical Connection: Cable gland M20x1.5, Terminal screw 3 x 1.5...4 mm²

Dimensions: Detailed dimensions are provided for installation, with diagrams indicating various measurements.

Switching Differential: The document lists typical switching differentials at 25°C for various measuring ranges.

Electrical Data: The microswitch features gold-plated contacts with specific ratings for voltage, current, and power.

Additional Information: Links to further documents such as data sheets, instructions, and flyers are provided for more detailed information.

Catalog excerpts

Data Sheet «Simple Apparatus» conformity to ATEX 947-1

«Simple Apparatus» conformity to ATEX 947 Pressostat Swiss based Trafag is a leading international supplier of high quality sensors and monitoring instruments for measurement of pressure and temperature. Potentially explosive atmosphere Compact design Rugged housing Protection IP65 Any mounting position possible May be used as „simple apparatus“ in zones at risk of explosions Technical Data Measuring principle Measuring range Media temperature Output signal 1Floating change-over contact (SPDT) Ambient temperature Switching differential Trafag Sensors & Controls Switzerland www.trafag.com [email protected]

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Data Sheet «Simple Apparatus» conformity to ATEX 947-2

«Simple Apparatus» conformity to ATEX 947 Ordering information/type code XXX XX XX XXX XX XX Custom build code Switch point indicator behind cover With gold plated contacts, switching differential not adjustable Sensor housing material Sensor material Thread G1/4" female G1/4" female G1/4" female G1/4" female G1/4" female G1/2" male G1/2" male G1/2" male G1/2" male G1/2" male Sensor material Sensor housing material Thread G1/4" female G1/4" female G1/4" female G1/4" female G1/4" female G1/2" male G1/2" male G1/2" male G1/2" male G1/2" male With mounting bracket Direct on sensor or housing Sealing...

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Data Sheet «Simple Apparatus» conformity to ATEX 947-3

«Simple Apparatus» conformity to ATEX 947 Specifications Accuracy Switching differential Adjustment range switchpoint Environmental conditions Screwed cable gland Polyamide (PA), light blue Mounting torque Dielectric strength Life time (mechanical) Cable gland M20x1.5 Cable-Ø 4...10 mm, max. cable length according to EN 60079-11 Electrical connection Storage temperature Media temperature Mechanical Data Ambient temperature Other adjustment ranges upon reques

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Data Sheet «Simple Apparatus» conformity to ATEX 947-4

«Simple Apparatus» conformity to ATEX 947 Dimensions (106.6) 106 91 Dimension X and Y see data sheet H72271

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Data Sheet «Simple Apparatus» conformity to ATEX 947-5

«Simple Apparatus» conformity to ATEX 947 Switching differential typ. @ 25°C Measuring range of piston sensor Microswitch 71 Switching differential (not adjustable) Electrical data switch Type 71 Features Gold plated contacts Electrical connection Additional information Documents Data sheet Instructions Flyer

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