Step 13 Reset the grand total to zero
To reset the grand total to zero select
'CLr.Gtot' from the configuration menu
and press
P
which will cause the
instrument to display 'Clr.no'. Toggle
this to 'CLr.YES' using the
▼
or
▲
push
button and press
P
which will result in a
'0000' prompt. Using the
▼
, and
▲
buttons and the
P
button to move control
to the next digit, confirm the request by
entering the password 'SurE'. Note: S is
entered as 5. Pressing
E
will then reset
the grand total counter to zero and return
the instrument to the 'CLr.Gtot' prompt in
the configuration menu.
Step 14 Enter security code
The example requires that access to the
Rate Totaliser configuration menu is
protected by the security code 1209. To
enter this code select ‘CodE’ from the
configuration menu and press
P
which
will reveal the existing security code with
one flashing digit. Using the
▼
and
▲
push buttons and the P button to transfer
control between digits set the code to
1209 and then press E to enter the code
and return to ‘CodE’ prompt in the
configuration menu.
Step 15 Return to the Rate Totaliser operating
mode.
Configuration is now complete, return to
the Rate Totaliser operating mode by
pressing the
E
button.
8.2 Using the internal reference
This example explains how to calibrate a BA354NE
Rate Totaliser using the instruments internal
reference which means that it does not have to be
disconnected from the measuring loop and no test
equipment is required.
As in the previous example the BA354NE Rate
Totaliser is connected to a flowmeter having a linear
output of 20mA at a flow of 1100 litres / minute.
The BA354NE is required to display flow in litres per
minute with maximum resolution and total flow in
cubic metres with a resolution of 0.1 cubic metres.
Total is to be shown on the upper large display and
rate on the lower smaller display. Totalisation is to
occur for flow rates between 1 and 100% of
maximum flow. A security code of 1209 is required.
In the operating mode the BA354NE is required to
display the input current as a percentage of span
when the
P
push-button is operated and operating
the
▼
and
▲
buttons
simultaneously to reset the
total display to zero.
All the configuration steps are identical to those in
the previous example except for steps 1 and 8.
Step 1
Leave the BA354NE in measurement
loop.
It is not necessary to remove the
BA354NE Rate Totaliser from the
measurement loop to reconfigure it using
the instruments internal references.
Throughout the procedure the loop
current must be between 4 and 20mA.
Step 8
Calibrate the rate display
Select calibration of the rate display
using the internal reference ‘5Et’ from the
configuration menu and press
P
.
The
BA354NE will display ‘Zero’, pressing
P
again will reveal the calibrated rate
display at 4mA input with one digit
flashing. The
▼
and
▲
push buttons will
adjust the flashing digit and the
P
push
button will transfer control to the next
digit. Enter 0000.0 and then press
E
to
return to the 'ZEro' prompt.
Press the
▲
button to access the ‘SPAn’
prompt and press P which will reveal the
calibrated rate display at 20mA with one
digit flashing. The
▼
and
▲
push buttons
will adjust the flashing digit and the
P
push button will transfer control to the
next digit. Enter 1100.0 and then press
E
to return to the 'SPAn' prompt. Finally,
press
E
again to enter the new rate
calibration and return to the ‘5et’ prompt
in the configuration menu.
Step 9
Return to the Rate Totaliser operating
mode.
Configuration is now complete, return to
the Rate Totaliser operating mode by
pressing the
E
button.
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