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8 variable FOUNDATION™ fieldbus Indicators can be nodes or listeners

01 June 2011

BEKA associates eight variable FOUNDATION™ fieldbus indicators, which feature easy to read 20mm high 5 digit displays and 31 segment bargraphs, can now be configured on-site as fieldbus Nodes or as fieldbus Listeners.

As a Node the indicator is configured via the fieldbus host and the instrument push buttons are used to select which pre-configured variable is displayed and, if required, to return acknowledgements to the host. As a Listener, the indicator is not visible to the fieldbus host and configuration is performed via the instrument’s push buttons, but no valuable macrocycle time is used and the indicator may not be subject to a Node Licence Fee thus reducing operating cost.
Field and panel mounting models have ATEX, IECEx, FM and cFM intrinsic safety certification permitting installation in most gas hazardous area, the field mounting models also have dust certification. For applications in Zone 2 or 22, the BA444NDF has Type n and tD approval permitting installation without the need for Zener barriers or galvanic isolators which significantly reduces installation cost.
The field mounting models have a robust IP66 GRP enclosure with an armoured glass window making them suitable for installation in harsh industrial and offshore environments. A separate terminal compartment with forward facing terminals simplifies installation and maintenance. Accessories include pipe-mounting kits and stainless steel tag plates, which can be supplied etched with customer specified tag and application information.
The panel mounting indicators have a 144 x 72 DIN enclosure with an IP66 front panel and a gasket to seal the joint between the instrument and the mounting panel which allows them to be hosed-down.
Single variable FOUNDATION™ fieldbus and PROFIBUS PA indicators are also available.
As with all BEKA products, these indicators are supplied with a three year guarantee and for customers wishing to evaluate a revised FOUNDATION™ fieldbus indicator on-site, a free three month sale or return evaluation service is available.

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