8.5.3 Access 4/20mA output sub-menu:
4-20 oP
Access the BA567E Counter configuration menu as
described in section 5.2. Using the
&
and
*
push
buttons scroll though the menu until
4-20 oP
is
displayed, pressing
(
will then access the 4/20mA
output sub-menu which is shown in Fig 15.
Fig 15 4/20mA output configuration sub-menu
8.5.4 Enable 4/20mA output:
EnbL
This function allows the 4/20mA output to be
disabled or enabled without altering any of the
4/20mA output parameters. Using the
&
or
*
push button select
EnbL
in the
4-20 oP
sub-menu
and press
(
to reveal the existing setting
on
or
oFF
.
The function can be changed by pressing the
&
or
*
push button followed by the
)
button to return
to
EnbL
prompt.
Note:
When the 4/20mA output is disabled by
selecting
oFF
, the output is a constant 3.5mA
irrespective of the instrument display.
8.5.5 Select rate or total source:
4-20tYPE
The 4/20mA output current can represent the
BA567E Counter’s rate or total display and this
should be defined before any other 4/20mA current
output functions are configured.
Using the
&
or
*
push button select
4-20tYPE
in
the 4/20mA output sub-menu and press
(
to reveal
the existing setting
totAL
or
rAtE
. The function can
be changed by pressing the
&
or
*
push button
followed by the
)
button to return to
4-20tYPE
prompt.
Note:
If the controlling source of the 4/20mA
output is changed i.e. from rate to total, the
4/20mA output will be disabled and the
output will be a constant 3.5mA
irrespective of the instrument display.
The 4/20mA output must always be re-
enabled and reconfigured following the
controlling source being changed.
9.5.6 Display which corresponds to 4mA
output:
4
.
000
The BA567E Counter display which corresponds to
a 4.000mA output current is defined by this function.
Using the
&
or
*
push button select
4
.
000
in the
4/20mA output sub-menu and press
(
to reveal the
existing rate or total display with one digit flashing.
The required display can be entered using the
&
or
*
push button to adjust the flashing digit and
the
(
button to transfer control to the next digit.
When set as required press
)
to enter the value
and return to the
4
.
000
prompt in the 4/20mA output
sub-menu.
9.5.7 Display which corresponds to 20mA
output:
20
.
000
The BA567E Counter display which corresponds to
a 20.000mA output current is defined by this
function. Using the
&
or
*
push button select
20
.
000
in the 4/20mA output sub-menu and press
(
. to reveal the existing rate or total display with
one digit flashing. The required display can be
entered using the
&
or
*
push button to adjust the
flashing digit and the
(
button to transfer control to
the next digit. When set as required press
)
to
enter the value and return to the
20
.
000
prompt in
the 4/20mA output sub-menu.
Note 1:
If the BA567E Counter and the 4/20mA
current sink output are powered from
separate supplies, the 4/20mA output
current will continue to flow when the
BA567E Counter supply fails or is turned
off. Powering both from a common supply
eliminates this effect.
8.6 Display backlight
The BA567E Counter can be supplied with a factory
fitted backlight that produce green illumination
enhancing display contrast and enabling it to be read
at night or in poor lighting conditions. The backlight
is internally powered from the instrument power
supply so that no additional wiring is required, but
the BA567E supply current increases as shown
below.
BA567E
Maximum
current
consumption
Without backlight
10.0mA
With backlight
32.5mA
Addition with terminals 3 & 4 linked
6.0mA
----------
Total current
38.5mA max
31
Summary of Contents for BA567E
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