BEKA BA334NG, Manual

Page: 43 / 46

43
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.
10.4.7 Display which corresponds to 20mA
output:
20 . 000
The Rate Totaliser 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 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
4-20 op
.
Notes:
1. If the calibration of the rate or total display
defined as the source for the 4/20mA output
is changed, the 4/20mA output will
automatically be set to give a constant
3.5mA output irrespective of the display.
The 4/20mA output should 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 eliminates this
effect.