BEKA BA588E, Manual, Page: 43 / 43

43
10.5.5 Select rate or total source:
4-20tYPE
The 4/20mA output current can represent the Rate
Totaliser's composite rate or composite total display.
This selection should be made before any other
current output functions are adjusted.
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 the
4-20tYPE
prompt in the sub-menu.
11.5.7 Display which corresponds to
4mA output:
4 . 000
The composite Rate Totaliser display which
corresponds to a 4.000mA output current is defined
by this sub-function. Using the
&
or
*
push
button select
4 . 000
in the 4/20mA output sub-menu
and press
(
which will reveal the existing 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.
11.5.8 Display which corresponds to
20mA output:
20 . 000
The Rate Totaliser composite 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
(
which will reveal the existing 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.
Notes:
1: If the calibration of the source of the 4/20mA
output is changed i.e. composite rate or
composite total display, the 4/20mA output will
automatically be set to give a constant 3.5mA
output irrespective of the display. The 4/20mA
output must always be reconfigured following
reconfiguration of the source display.
2: If the Rate Totaliser and the 4/20mA current
sink output are powered from separate
supplies, the 4/20mA output current will
continue to flow when the Rate Totaliser supply
fails or is turned off. Powering both from a
common supply but via separate Zener barriers
or galvanic isolators eliminates this effect.