11
Display
Description of function
'SEt' 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 6.8
'Cond' Indicator conditioning
This is a protected sub-menu
which contains the calibration
routine for the two internal
references 'rEF', and the mains
(line) frequency selection
function 'FrE'.
See section 6.9
CAUTION
Please read sections 6.9 and
6.9.1 of this manual before
changing any of the
parameters in this sub-
menu. Incorrect adjustment
may result in reading errors.
'CLr. Gtot' Clears grand total
This function resets the grand
total to zero when 'CLr YES' is
selected, and 'SurE' is entered to
confirm the instruction.
Note:
Once cleared, a grand
total can not be recovered.
See section 6.10
't-bASE' Timebase
Three selectable divisors which
define whether the rate display
represents flow per second, per
minute or per hour.
See section 6.11 & Fig 6.
'C - - P' Function of
P
push-button in
display mode
The instrument may be
programmed to show on the rate
display the input current in
milliamps, or the input as a
percentage when the P push-
button is operated in the display
mode. Select ‘PC’ for % of span
and ‘4-20’ to display current.
See section 6.12
Display
Description of function
'SCALE-t' Total Scale Factor
Defines the arithmetic
relationship between the rate
and total displays. May be
adjusted between 0.0001 and
65535
SCALE-t = Units of total display
Units of rate display
The same units of
measurements should be used
for the rate and total displays
when calculating SCALE-t
See section 6.13 and Fig 6.
'CLIP-OFF' Percentage Clip off
To prevent the totalisation of
very low flow rates, this function
enables the user to select a
percentage rate below which the
rate display is forced to zero.
Adjustable between 0 and 10%
of flow for linear inputs, and 5 to
10% when the root function is
used to linearise a square law
input.
See section 6.14
'LOC.rSEt' Local reset of total display
When turned 'On' this function
enables the total display to be
reset to zero by simultaneously
operating the Up and Down
push-buttons.
See section 6.15
'COdE' Security code
Defines a four digit numeric code
which must be entered to gain
access to programmable
functions. Default code 0000
disables the security function
and allows unrestricted access to
all programmable functions.
See section 6.16
