BEKA BA564G, Manual, Page: 4 / 38

1. DESCRIPTION
The BA564G is a general purpose, field mounting two
input Counter which can accept pulses on one or both
inputs. The Counter may be configured to show total
and rate for one of the following in engineering units:
Input A + Input b
Input A
-
Input b
Input A count direction controlled by Input b
Quadrature decoder
(Input A and Input b electrically 90
o apart)
A smaller six digit display may be activated to show
the composite pulse rate in engineering units per
second, minute or per hour.
In addition to counting applications, the BA564G can
display the position, direction of movement and speed
of a shaft or cable using the instruments quadrature
decoder.
The optically-isolated pulse output may be configured
to synchronously retransmit either of the two pulse
inputs or a scaled output when the least significant
digit of the total display is incremented.
This instruction manual supplements the abbreviated
instruction sheet supplied with each instrument.
2. OPERATION
Fig 1 shows a simplified block diagram of the
BA564G Counter. The instrument has two inputs,
A and b, which can be individually configured to
accept pulses from most types of sensor. The
BA564G can display the total number of pulses
received from each input, or their sum or
difference, together with associated rates on a
separate display.
Fig 1 BA564G block diagram
The BA564G can be supplied with any of the
following factory fitted accessories:
Internally powered display backlight
Dual isolated alarms
Isolated 4/20mA output
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