5.3 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 6 and 9.2 of this manual.
Display
Summary of function
'FunC'
Rate Totaliser function
Defines the relationship between the
4/20mA input current and the
instruments rate display.
For uni-directional flow may be set
to:
‘5td’
Standard linear relationship
‘root’ Square root extraction
‘Lin’
16 segment adjustable
lineariser – see section 6
For bi-directional flow may be set
to:
‘bi-5td’ Standard linear relationship
‘bi-Lin’ 16 segment adjustable
lineariser – see section 6
See section 5.4
'rE5n'
Display resolution
Defines the resolution of the least
significant rate display digit. May be
set to ‘1’, ‘2’, ‘5’ or ‘10’ digits.
See section 5.5
‘uPdAtE’
Update
Defines the interval between
updates. May be set to ‘1’, ‘2’, ‘3’,
‘4’ or ‘5’ seconds.
See section 5.6
‘di5P-1’
Upper display
Defines whether ‘totAL’ or ‘rAtE’ is
shown on the upper eight digit
display.
See section 5.7
‘di5P-2’
Lower display
Turns lower six digit display ‘on’ or
‘oFF’.
See section 5.8
'dP'
Decimal points
Positions the decimal point in the
‘rAtE’ and ‘totAL’ displays.
See section 5.9
Display
Summary of function
'CAL'
Calibration of the rate display
using an external current source.
Enables the zero and span of the
rate display to be adjusted using an
external current source such as a
calibrator. When used with an
accurate traceable calibrator this is
the preferred method of calibration.
See section 5.10
'5Et'
Calibration of rate display using
internal references.
Enables the zero and span of the
rate display to be adjusted without
the need for an accurate input
current or disconnection from the
4/20mA loop.
See section 5.11
‘Clr.Gtot’
Clear grand total
Resets the sixteen digit grand total
to zero when ‘Clr.YES’ is selected
and ‘5urE’ is entered digit by digit to
confirm the instruction.
Note:
Once cleared a grand total
can not be recovered.
See section 5.12
‘t-bA5E’
Timebase
Selectable divisor to display flow
rate in units per second, per minute
or per hour.
Select:
‘tb-01’
for flow / second
‘tb-60’
for flow / minute
‘tb-3600’
for flow / hour
See section 5.13
'C - - P'
Function of
P
push button
The Rate Totaliser may be
configured to display the input
current in milliamps, or the input
current as a percentage of the
4/20mA input when the
P
push
button is operated in the display
mode.
Select:
‘PC’
% of 4/20mA input
‘4-20’
Current in mA
Note:
‘PC’ is not available with
lineariser.
See section 5.14
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