4.12
Alarm relay 2 normally open/closed
Display:
A2n.o
or
A2n.c
Range:
A2n.o
or
A2n.c
Default Value:
A2n.o
Displays and sets the setpoint alarm relay 2 action to normally open (de-energised) or normally closed
(energised) and operates in the same manner as the
A1n.o
or
A1n.c
function. See
A1n.o
or
A1n.c
for
further description.
4.13
Alarm relay setpoint or trailing operation
Display:
A2SP
or
A2t1
Range:
A2SP
or
A2t1
Default Value:
A2SP
Relay operation independent setpoint or trailing setpoint, this function will not be seen unless extra
optional relays are fitted. Each alarm, except relay 1, may be programmed to operate with an independent
setpoint value or may be linked to operate at a fixed difference to another relay setpoint, known as trailing
operation. The operation is as follows:
Alarm 1 (
AI
) is always independent. Alarm 2 (
A2
) may be independent or may be linked to Alarm 1.
For trailing set points the setpoint value is entered as the difference from the setpoint being trailed. If the
trailing setpoint is to operate ahead of the prime setpoint then the value is entered as a positive number
and if operating behind the prime setpoint then the value is entered as a negative number.
Example:
With Alarm 2 set to trail alarm 1, if
A1Hi
is set to
1000
and
A2Hi
is set to
50
then Alarm 1 will
activate at
1000
and alarm 2 will activate at
1050
(i.e. 1000 + 50). If Alarm 2 had been set at
-50
then alarm 2 would activate at
950
(i.e. 1000 – 50).
4.14
Display brightness
Display:
brGt
Range:
1
to
63
Default Value:
63
Seen only when
brGt AUto
is set to
OFF
. Displays and sets the digital display brightness. The display
brightness is selectable from
1
to
63
, where
1
= lowest intensity and
63
= highest intensity. This
function is useful for improving the display readability in dark areas or to reduce the power consumption
of the instrument. See also the
duLL
function
. To set brightness level go to the
brGt
function and
use the
^
or
v
push buttons to set the value required then press
F
to accept this value.
4.15
Display remote brightness switching
Display:
duLL
Range:
0
to
63
Default Value:
15
Displays and sets the level for remote input brightness switching, see
R.INP
function. When a remote
input is set to
duLL
the remote input can be used to switch between the display brightness level set by
the
brGt
function
and the display brightness set by the
duLL
function. The display dull level is
selectable from
0
to
63
, where
0
= lowest intensity and
63
= highest intensity. This function is useful
in reducing glare when the display needs to be viewed in both light and dark ambient light levels. To set
dull level go to the
duLL
function and use the
^
or
v
push buttons to set the value required then press
F
to accept this value.
20 of
LDRSMANADD-2.3-0
