Hazardous area Safe area C7 Shown with optional backlight The BA367E is a one input intrinsically safe counter with one input that has similar functions as the two input BA368E, but is housed in a smaller 96 x 48mm DIN enclosure. The counter is easy to use and can be configured on-site to operate with magnetic pick-off, switch contact, proximity detector, open collector or a voltage pulse sensor. A slide-in scale card simplifies identification and international intrinsic safety certification permits worldwide installation. Main application of the BA367E is to count the number of pulses received from a hazardous area sensor such as a 2-wire proximity detector and simultaneously display the rate and total number in engineering units within the hazardous area. The display has high contrast and a wide viewing angle enabling the counter to be read in most lighting conditions over a wide temperature range. The total number of pulses may be scaled and displayed in almost any units to represent the engineering variable being counted. The total display may be reset using the front panel push buttons or an external contact closure. The pulse rate may be shown in the same or different units per second, minute or hour. IP66 front panel protection with a neoprene gasket to seal the joint between the counter and the instrument panel, allows the BA367E to be installed in areas that will be washed down. To simplify installation and maintenance, the counter has removable terminal blocks allowing panel wiring to be completed before the instrument is installed. International intrinsic safety certification allows the BA367E counter to be installed worldwide. When configured to operate with a sensor having a voltage or magnetic pick-off output, the input terminals comply with the requirements for simple apparatus reducing system design and documentation. Display backlighting which is internally powered from the counter is available as a factory fitted option. It provides green background illumination enhancing daylight viewing and allowing the display to be easily read at night or when installed in a poorly illuminated area. One of the following three optional outputs may be factory fitted to the BA367E counter. All are isolated and have been certified as separate intrinsically safe circuits complying with the requirements for simple apparatus. Optional isolated pulse output will synchronously retransmit the counter input pulse, or a pulse when the least significant digit of the total display is incremented. Optional isolated 4/20mA output may be configured to produce an analogue output proportional to any part of the total or rate display, Optional dual alarms can switch hazardous area loads such as a sounder or solenoid valve, or safe area loads via a Zener barrier or isolator. The two galvanically isolated, solid state voltage free outputs may be independently conditioned as rate or total alarms with normally open or closed outputs. Annunciators on the BA367E display show the status of both alarm outputs. Rugged versions and a two input counter are available in other models within the range. The BA367E-SS is identical to the BA367E except that it is housed in a rugged stainless steel enclosure with a 10mm thick window that may be installed in an Ex e, Ex n, Ex p or Ex t panel enclosure without invalidating the enclosure's certification. The BA367NE has Ex nA certification allowing installation in Zone 2 or 22 without Zener barriers or galvanic isolators. The BA368E is a two input counter with a larger display in a 1 44 x 72mm DIN enclosure. BA367E One input counter Intrinsically safe for use in all gas hazardous areas U Configurable input: magnetic pick-off, switch contact, proximity detector, open collector or voltage pulse. U Separate rate and total displays. U Intrinsically safe U 96 x 48mm DIN enclosure with IP66 front protection. U Optional: Backlight dual alarms or 4/20mA output or pulse output U 3 year guarantee www.beka.co.uk/ba367e BEKA associates Ltd. Old Charlton Rd. Hitchin, Hertfordshire, SG5 2DA, U.K. Tel. (01462) 438301 Fax (01462) 453971 e-mail [email protected] www.beka.co.uk

DIMENSIONS (mm) Power supply Voltage 10 to 28V from a Zener barrier or galvanic isolator Current 16mA max plus 22.5mA for optional backlight Input Switch contact Proximity detector (NAMUR) Open collector Magnetic pick-off Voltage pulse (low) Voltage pulse (high) Frequency Switch contact Other inputs All inputs Display Type Zero blanking Total f Decimal point Rate f Decimal point Lower Upper switching thresholds 150Hz typical 1 Depends upon pulse width 100kHz max J and debounce setting. 0.01Hz min Liquid crystal Blanked apart from 0 in front of decimal point 8 digits 9mm high 1 of 7 positions...