9
6.1
Summary of configuration functions
This section summarises each of the main
configuration functions and includes a cross
reference to a more detailed description. Fig 7
illustrates the location of each function within the
configuration menu. The lineariser and the
optional factory fitted alarms are described
separately in sections 7 and 9.3 of this manual.
Display
Summary of function
FunC
Indicator function
Defines the relationship between the
4/20mA input current and the indicator
display. May be set to:
5td
Standard linear relationship
root
Square root extraction
Lin
16 segment adjustable
lineariser – see section 7.
See section 6.2
rESn
Display resolution
Defines the resolution of the least
significant display digit. May be set to
1
,
2
,
5
or
10
digits.
See section 6.3
dP
Decimal point
Positions a dummy decimal point
between any of the digits or turns it off.
See section 6.4
CAL
Calibration of the digital display using
an external current source.
Enables the zero and span of the
indicator to be adjusted using an external
current source such as a calibrator.
When used with an accurate traceable
current source this is the preferred
method of calibration.
See section 6.5
5Et
Calibration of display using internal
references.
Enables the zero and span of the
indicator to be adjusted without the need
for an accurate input current or
disconnection from the 4/20mA loop. See
section 6.6
bAr
Bargraph format and calibration
Only the BA324NG has a bargraph
The bargraph may be conditioned to start
from left, right or centre of the display, or
it may be disabled. When optional
alarms are fitted it can also display both
alarm setpoints and the measured value.
The bargraph may be calibrated to start
and finish at any value within the
indicator’s calibrated digital display.
See section 6.7
Display
Summary of function
C--P
Function of
(
push button
The indicator may be configured to
display the input current in milliamps, or
the input current as a percentage of the
4/20mA input when the
(
push button is
operated in the display mode.
See section 6.8
tArE
Tare function
When enabled the tare function sets the
indicator display to zero when the
)
push button is operated in the display
mode.
See section 6.9
CodE
Security code
Defines a four digit numeric code that
must be entered to gain access to the
configuration menu. Default code
0000
disables this security function and allows
unrestricted access to all conditioning
functions.
See section 6.10
r5Et
Reset
Contains two sub-functions,
ConF
which
returns the indicator to the default
conditions shown in section 6.0 and
LtAb
which returns the lineariser to the default
conditions shown in section 7.3. To
prevent accidental use both resets must
be confirmed by entering
5urE
before
they will be executed.
See section 6.11
