BEKA BA364E, Руководство пользователя

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Note:
The counting edge function
CntEdg-b
is not
included in the configuration menu when the
BA364G Counter has a quadrature input
A rEL b
or when input A is controlled by input b
A Con b
.
In quadrature mode the instrument will count up
when the rising edge of input-b leads the rising
edge of input-A.
See section 6.13.
6.12 Display update interval:
uPdAtE
If either the rate or the total display is likely to
change rapidly, a longer interval between display
updates may simplify reading. This function allows
one of six different display intervals between 0.5 and
5 seconds to be selected. The selected display
update interval does not affect the update time of
any other instrument function.
To adjust the update interval select
uPdAtE
from the
configuration menu and press
(
to reveal the
current update interval. Pressing the
&
or
*
button will scroll through the six times. When the
required interval has been selected press
)
to
enter the selection and return to the configuration
menu.
6.13 Counting function:
Count
This function defines the arithmetic relationship
between Inputs A and Input b.
The following four
modes may be selected:
Display Input count mode
A : b
Pulses at input A added to
pulses at input b.
A : -b
Pulses at input b
subtracted from pulses at
input A.
*
A Con b
Input b controls count
direction of input A.
*
Input b Input A
Low Up counter
High Down counter
A rEL b
Quadrature input with
sensors electrically 90
o
apart.
*
*
The pulse output is not available with these
count modes.
Fig 11 shows the voltage waveforms at the two
inputs and the resulting total display when the
BA364G is configured to count up on a rising edge.
Fig 11 Counting waveforms
Note:
For a quadrature input the two signals do not
require equal marks and spaces to achieve
reliable counting.
6.14 Upper display:
di5P-1
Usually the total count is shown on the larger upper
eight digit display, but this function reverses the
display locations allowing rate to be shown on the
larger upper display and total on the smaller lower
display.
To check the setting for the display, select
dI5P-1
from the configuration menu and press
(
which will
reveal if the display is showing
rAtE
or
totAL
. The
setting can be changed by pressing the
&
or
*
button followed by the
)
button to enter the
selection and return to the configuration menu.
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