openPR Logo
Press release

New solutions for safe electrostatic grounding in hazardous areas

08-03-2010 09:25 AM CET | Industry, Real Estate & Construction

Press release from: R. STAHL

Thanks to continuous monitoring of the earthing connection, grounding monitoring devices ensure safety in hazardous areas

Thanks to continuous monitoring of the earthing connection, grounding monitoring devices ensure safety in hazardous areas

When handling combustible liquids or powders, operators are faced with an invisible, often underrated risk: electrostatic discharges, a potential source of sparks that can ignite explosive atmospheres. In order to prevent this, and to enable the safe handling of hazardous substances, R. STAHL offers the new type 8485 and type 7485 grounding monitoring devices. These units ensure the safe elimination of electrostatic charges during the loading and unloading of tank vehicles such as tank trucks or tank wagons. Unlike simple earthing cables, this solution continuously monitors the connection between the grounding monitoring device and the grounded object. Impaired or broken connections due to cable damages or operating errors are detected and signalled to the operator via a red indicator lamp. Additionally, two relay contacts allow for an automatic interruption of the loading process. Furthermore, the new grounding devices also enable users to differentiate between the connection of the clamp with tank trucks and the connection with the loading equipment, thus considerably reducing the risk of operator errors.

The grounding monitoring devices are suitable for outdoor installation and can even be used in extreme climates (-50 °C to +60 °C). Both types are equipped with an IP65 housing. 8485 devices are designed for use in zone 1, while the 7485 series has been optimised for installation in zone 2 as well as zone 21 and 22 hazardous dust atmospheres. A two-channel version, i.e. a model with two earthing clamps, allows for efficient monitoring of combined loading units, e.g. trains and trucks. In that case, the monitoring mode can be individually adapted to the application for each of the two clamps. In addition to the corrosion-resistant earthing clamp with good contact pressure, the solution includes a robust, oil-resistant cable. The clamps are available with simple cables, spiral cables or an automatic retractor suitable for use in zone 1.

Company Background
For more than 80 years, R. STAHL has been a trendsetting manufacturer of safety technology for hazardous areas. Based in Waldenburg, Germany, the company is one of the world's leading suppliers of explosion-protected automation, control and distribution, installation, operating and monitoring, lighting, signaling and alarm components and systems. Key products include customer-specific systems solutions for hazardous areas. R. STAHL's individual packages containing tailored product combinations and a wide range of services such as consulting, project planning, engineering and training courses for customers are designed to fully meet application requirements and customer needs. International certifications, approvals and patents demonstrate the company's expertise and allow for R. STAHL's products to be used throughout the world.

Kerstin Wolf
Am Bahnhof 30
74638 Waldenburg
Tel.: +49 . 7942 . 943-4300
Fax: +49 . 7942 . 943-404 300

This release was published on openPR.

Permanent link to this press release:

Please set a link in the press area of your homepage to this press release on openPR. openPR disclaims liability for any content contained in this release.

You can edit or delete your press release New solutions for safe electrostatic grounding in hazardous areas here

News-ID: 140191 • Views: 891

More Releases from R. STAHL

Energy-efficient LED beacons from R. STAHL
In addition to tried-and-tested models with halogen and xenon flash lamps, R. STAHL's 6162 line of signal beacons now also includes energy-saving LED-based continuous beacons and rotating beacons. With little self-heating, these new models are suitable for use in Ex zones 1, 2, 21, and 22. They fulfill the requirements of temperature class T6 and surface temperature for dust explosions protection T80 °C, and come with an integrated "increased safety"
Completely wireless switching devices for ATEX zones 1, 2, 21 and 22
R. STAHL's new 8074 F series position switches and 8040 F series command devices are truly, completely wireless solutions for radio signal communication. Requiring neither signal lines nor external energy supply connections, the units can be freely installed in zone 1, 2, 21, or 22 hazardous areas. Users therefore need not worry about any wiring when e.g. retrofitting the command devices into difficult-to-access machines or plants. Since there is no
Modular UPS solutions for hazardous areas
R. STAHL provides uninterruptible power supplies for hazardous areas which ensure the safe operation of systems that require 100% availability. The UPS units are assembled from a modular design kit and can be optimally adapted to specific applications. They can be used to safely bridge complete blackouts or malfunctions in the mains power supply, such as frequency fluctuations or overvoltages caused by lightning strikes which can result in plant downtime.
System solutions for explosion-protected equipment
A specialised supplier with decades of experience and comprehensive knowledge in explosion protection, R. STAHL has been providing users with system solutions for automation applications in hazardous areas for 30 years. Based on R. STAHL's products and, if required, specific third-party components, these solutions can be implemented quickly, reliably and at predictable, attractive prices. An R. STAHL system solution is a technology package from one source, delivered tested, certified and

All 5 Releases