BEKA BA334E, Руководство пользователя, Страница: 46 / 64

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Fig 19 Application of 4/20mA output
10.4.3 Configuration
When a Rate Totaliser is supplied with an optional
4/20mA output the configuration menu is extended
as shown in Fig 20. The 4/20mA output sub-menu
is accessed via the
4-20 oP
function. Using the
&
or
*
push buttons scroll though the menu until
4-20 oP
is displayed, pressing
(
will then access
the 4/20mA output sub-menu.
The 4/20mA output sub-menu allows the 4/20mA
output to be controlled by the rate or the total
display and to be scaled.
10.4.4 Enable 4/20mA output:
Enbl
This function allows the 4/20mA current output to be
disabled or enabled without altering the calibration.
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
in the sub-menu.
Fig 20 4/20mA output configuration sub-menu
10.4.5 Select rate or total source:
4-20tYPE
The 4/20mA output current can represent the Rate
Totaliser's rate or total display, this should be
defined before any other current output functions
are adjusted.
Using the
&
or
*
push button select
4-20tYPE
in
the
4-20 op
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
the
4-20tYPE
prompt in the sub-menu.
10.4.6 Display which corresponds to 4mA
output:
4 . 000
The Rate Totaliser 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
(
which will
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.