BA307E-SS
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Hazardous area Safe area Rugged 2-wire 4/20mA 4 digit indicator I ntrinsically safe for use in Zone 1 Ex e or Ex p panel enclosures and in harsh marine environments Zener barriers or galvanic isolators The BA307E-SS intrinsically safe, panel mounting loop powered Indicator has a rugged stainless steel housing allowing it to be safely installed in an Ex e or Ex p panel, in marine environments or where the front of the instrument is likely to be impacted. The indicator has a full 4 digit display with guaranteed performance between -40 and 70°C. The scale card can easily be marked to show the units of measurement and can be installed on-site without dismantling the instrument or removing it from the panel. Main application of the BA307E-SS is to display a measured variable in engineering units when mounted in an Ex e or Ex p panel enclosure located in Zones 1 or 2. The front of the indicator has IP66 ingress and impact protection which allows it to be installed in a certified Ex e or Ex p panel enclosure without invalidating the enclosure certification. The indicator's rugged stainless steel housing and 10mm thick toughtened glass window also make the BA307E-SS ideal for intrinsically safe applications in marine environments or where the front of the instrument is likely to be impacted. The bold 15mm high 4 digit display provides maximum contrast and has a wide viewing angle, allowing the BA307E-SS to be easily read in most lighting conditions over a wide temperature range. An optional factory fitted backlight is available for applications in poorly illuminated areas. The four digits, with three decimal point positions and a negative sign, may be configured to display any variable between -9999 and 9999. International intrinsic safety certification allow the BA307E-SS to be installed worldwide. The 4/20mA input terminals comply with the requirements for simple apparatus which, together with the low voltage drop, permit connection to most intrisically safe circuits. Shown with optional backlight - loop powered steel enclosure. u Front of indicator For applications in combustible dusts the BA307E-SS may be installed in a certified Ex t panel enclosure without invalidating the enclosure's certification. maintains Ex e, Ex p and Ex t enclosure certification. A backlight which may be loop or separately powered is available as a factory fitted option. It provides green background illumination allowing the display to be read at night or in poorly illuminated areas. When powered from the 4/20mA loop no additional intrinsically safe interface or wiring are required and the indicator input remains compliant with the requirements for simple apparatus. Powering from a separate supply produces a brighter backlight but requires an additional intrinsically safe interface. Two backlights may be separately powered from one intrinsically safe interface. Optional dual alarm outputs which can switch hazardous or safe area loads, such as sounders, beacons or solenoid valves are available as a factory fitted option. The two galvanically isolated solid state alarm outputs may be independently configured as high or low alarms with normally open or closed outputs. Annunciators on the display show the status of both outputs. u 4 digit 15mm high display. u ptional backlight & O alarms. u asy on-site scale card E installation. u oot extractor and 16 R segment lineariser. Units of measurement may be shown on the scale card which is visible through the window on the right hand side of the display. Instruments are supplied with the units legend requested when ordered, but the scale card may be easily changed on-site without removing the BA307E-SS from the panel or opening the instrument enclosure. Application Guide AG300 explains how the BA307E-SS and similar instruments may be safely installed in gas and dust hazardous areas. Copies may be downloaded from the BEKA website or requested from the BEKA sales office. Other models in this range include the BA327E-SS which has a similar specification with five 11mm high digits and a 31 segment bargraph. BEKA associates Ltd. Old Charlton Rd. Hitchin, Hertfordshire, SG5 2DA, U.K. Tel. (01462) 438301 Fax (01462) 453971 e-mail sales@beka.co.uk www.beka.co.uk

SPECIFICATION Input Current Voltage backlight. Over range DIMENSIONS (mm) 4 to 20mA Less than 1.2V at 20°C Less than 1.3V at -40°C Less than 5V with optional loop powered Panel cut-out NOTE: Will not fit into the reduced cut-out specified for standard ‘E’ indicators. ±200mA or ±30V will not damage the indicator Shows display with 4mA input Shows display with 20mA input Displays input in mA or as a % of span, has a modified function when alarms are fitted. Used for Tare function Accuracy at 20°C Linear Root extracting Temperature effect on: Zero Span Series mode rejection Hazardous area...