BA514G
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Proximity detector, magnetic pick-off, voltage pulse, switch contact or open collector pulse output Shown with optional backlight The BA514G is a third generation, general purpose field mounting tachometer housed in a compact IP66 GRP enclosure. The tachometer is easy to use and can be configured on-site to operate with a magnetic pick-off, switch contact, proximity detector, open collector or a voltage pulse sensor. Main application of the BA514G is to measure and display rotational speed within a process area. To assist with routine maintenance the BA514G tachometer includes a run-time clock that records the number of hours that the monitored machinery has been operating. The large display has high contrast with a wide viewing angle, enabling the tachometer to be read in most lighting conditions over a wide temperature range. Speed may be displayed in almost any units of measurement per second, minute or hour. Run-time is shown on the lower display in hours with a tenth of an hour resolution. If not required the run-time display can be disabled. Display backlighting which is internally powered from the tachometer is available as a factory fitted option. It provides green background illumination enhancing daylight viewing and allowing the tachometer to be easily read at night or when installed in a poorly illuminated area. IP66 protection is provided by the robust GRP enclosure which has stainless steel fittings, a silicone gasket and an 8mm thick armoured glass window. Ingress and impact protection have been independently assessed by Intertek. The scale card which shows the tachometer's units of measurement and tag information slides into an internal slot allowing easy on-site removal and marking. New instruments are fitted with a printed scale card showing customer specified information, if this information is not supplied a blank card is fitted which can easily be marked on-site. For application requiring external marking an optional stainless steel legend plate is available which can be supplied engraved with customer specified information. The isolated open collector pulse output can synchronously retransmit the tachometer’s input pulse to other instruments. The retransmitted output pulse frequency may be divided and the output pulse width may be defined. A 4/20mA isolated current sink output, which is available as a factory fitted option, may be configured to produce an output proportional to any part of the speed display. Optional dual alarms can switch loads such as a sounder or a solenoid valve. The two galvanically isolated, solid state voltage free outputs may be independently conditioned as speed or run-time alarms with normally open or closed outputs. Annunciators on the BA514G display show the status of both alarm outputs. Panel mounting tachometers with a variety of display and enclosure sizes are also available, see BA517E, BA517E-SS and BA518E. Certified field and panel mounting models are also available for hazardous area applications BA514G one input tachometer General purpose U Configurable input: magnetic pick-off, switch contact, proximity detector, open collector or voltage pulse. U Separate speed and run-time displays. U I P66 GRP enclosure U Isolated pulse output U Simple on-site scale card installation. U Optional: Backlight Dual alarms 4/20mA output U 3 year guarantee www.beka.co.uk/ba514g

DIMENSIONS (mm) Power supply Voltage Current 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 Speed Decimal point Run-time Grand total run-time Remote reset Pulse output Frequency Divisible by Pulse width Ron Roff Vmax I max Configurable functions Speed scale factor Speed timebase 10 to 30 V dc 16mA max plus 16mA for optional backlight Lower Upper switching thresholds 100U 1kU 150Hz typical Depends upon pulse width 100kHz max J and debounce...