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The eight variable Foundation fieldbus indicators from Beka Associates, which each feature 20mm-high five-digit displays and 31 segment bargraphs, can now be configured on site as nodes or listeners.

As a fieldbus node, the indicator is configured via the fieldbus host, and the instrument pushbuttons are used to select which pre-configured variable is displayed and, if required, to return acknowledgements to the host.

As a fieldbus listener, the indicator is not visible to the fieldbus host, and configuration is performed via the instrument’s pushbuttons, 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 areas; the field-mounting models also have dust certification.

For applications in Zone 2 or 22, the BA444NDF offers Type n and tD approval, permitting installation without the need for Zener barriers or galvanic isolators, significantly reducing installation costs.

The field-mounting models incorporate an 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, according to the company.

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 each 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.

In addition, 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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