BEKA BA537E, Руководство пользователя

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2.2 Controls
The BA537E and BA538E are controlled and
configured via four front panel push buttons.
In the
totalisation mode i.e. when the instrument is
displaying rate and total flow the push button
functions are:
Push Button Functions
)
+
&
Grand total - shows
Lo
followed by least
significant 8 digits of the 16 digit grand
total.
)
+
*
Grand total - shows
Hi
followed by the
most significant 8 digits of the 16 digit
grand total.
If Local Grand Total Reset
CLr Gtot
in
the instrument configuration menu has
been activated, operating the
)
+
*
buttons for ten seconds will result in
Clr. no
being displayed with the
no
flashing. Operating the
&
or
*
button
will change the display to
CLr
–
.
–
YE5
, the
)
button will then reset the grand total
to zero which will be confirmed by a brief
display of
Gt Clrd
. See 5.20
&
+
*
If Local Total Reset
CLr tot
in the
instrument configuration menu has been
activated, operating the
&
+
*
buttons
for three seconds will reset the total
display to zero and clear any pulses
stored in the optional pulse output.
The Grand Total is not reset.
See 5.19
(
+
&
Shows in succession, firmware version
number, instrument function
totali5e
and any output accessories that are
fitted:
- A
Dual alarm outputs
- P
Pulse output
- C
4/20mA output
(
+
*
Provides direct access to the alarm
setpoints when the Rate Totaliser is fitted
with optional alarms and the
AC5P
setpoints function has been enabled.
See 9.4.13
(
+
)
Access to configuration menu
2.3 Displays
The BA537E and BA538E have two digital displays
and associated annunciators, plus a flow indicator
as shown on the front cover of this manual.
Total Shows the total flow on the
display upper eight digit display. May
be reset to zero via front panel
push buttons or by a remote
reset switch.
Rate Shows the flow rate on the
Display lower six digit display.
Flow This disc in the lower left
indicator hand corner of the display
'rotates' for two seconds each
time an input pulse is received.
Appears to rotate continuously
when input frequency exceeds
0.5Hz.
Hold Activated when input
annunciator frequency is below the clip-off
threshold.
Reset Activated while instrument is
annunciator being reset via the front panel
push buttons, or the external
reset terminals.
Rate Identifies rate display
annunciator
Total Identifies total display
annunciator
RTx Retransmitted pulse
annunciator annunciator.
Depends upon the setting of
5ource
in the pulse output
configuration menu.
5caled:
Annunciator activated each
time
pulse output open
collector is on , i.e. Ron is
less than 60 Ω + 3V.
direct:
Annunciator continuously
activated.
2.3.1 Display over-range
Over-range of the upper eight digit display or the
lower six digit display is indicated by all the digits
displaying
9
and all the decimal points flashing.
4