26
8.2.11 Access Setpoint: AcSP
This function controls a separate menu which
provides direct access to the alarm setpoints
when the instrument is in the display mode. See
section 8.2.13 for a full description. An
operator may therefore adjust the alarm
setpoints without having access to the
programme and alarm menus. Further
protection is provided by a separate security
code.
This direct access menu is enabled and a
separate security code entered from the 'AcSP'
function in the main programme menu as shown
in Fig 12. To change the menu parameters
select 'AcSP' from the programme menu and
press
P
which will display the enable prompt
'EnbL'.
Press
P
again to reveal if the direct access
menu is 'On' or 'OFF'. The
Up
or
Down
buttons
will toggle the display between the two
conditions.
If 'OFF' is selected, the operator will not have
access to the setpoints from the display mode.
Return to the 'AcSP' prompt in the main menu
by pressing
E
twice.
If 'On' is selected, the operator will have direct
access to the alarm setpoints from the display
mode via a separate optional security code. To
define the four digit numerical code press
E
to
return to the 'EnbL' prompt followed by the
Up
or
Down
button to select the access code prompt
'AcCd'. Pressing
P
will reveal the current
security code. Each digit of the code may be
changed by operating the
Up
and
Down
push-
buttons, and the
P
button to move to the next
digit. When the required code has been
entered, press
E
twice to return to the 'AcSP'
prompt in the Programme Menu.
Code 0000 will disable the security code
allowing direct access to the setpoints by
pressing the
P
and the
Up
buttons
simultaneously.
8.2.12 Adjusting alarm setpoints from the
display mode
Access to the two alarm setpoints from the
indicator display mode is obtained by operating
the
P
and
Up
push-buttons simultaneously as
shown in Fig 13. If the setpoints are not
protected by a security code the alarm setpoint
prompt 'SPr1' or 'SPt1' will be displayed
depending upon whether a rate or total alarm
has been programmed. If the setpoints are
protected by a security code, 'COde' will be
displayed first. Pressing
P
again will enable the
alarm security code to be entered digit by digit
using the
Up
and
Down
buttons to change the
flashing digit, and the
P
push-button to move to
the next digit. If the correct code is entered
pressing
E
will cause alarm setpoint prompt
'SPx1' to be displayed. Pressing the
Up
or
Down
button will toggle the display between the
two alarm setpoint prompts 'SPx1' and 'SPx2'.
Note:
‘x’ will be displayed as ‘r’ or ‘t’ depending
upon whether the alarm has been progammed
as a rate or total alarm.
If an incorrect security code is entered, or a
button is not pressed within ten seconds, the
instrument will automatically return to the display
mode.
Fig 13 Setpoint adjustment from the display
mode
