The alarm and brightness functions below are accessible via
FUNC
mode.
The LD4-LN has an easy alarm access facility which allows access to the alarm setpoints simply by
pressing the
F
button. The first setpoint will then appear and changes to this setpoint may be made to this
setpoint via the
^
or
v
buttons. Press the
F
button to accept any changes or to move on to the next
setpoint.
The instrument must be set in the manner described below to allow the easy access facility to work:
1.
The
R.INP
function must be set to
SP.AC
or the
ACCS
function must be set to
EASY
.
2.
At least one alarm must have a setpoint, nothing will happen if all the alarm setpoints are set to
OFF
.
3.
The
SP.AC
function must be set to allow access to the relays required e.g. if set to
A1-2
then the
easy access will work only with alarm relays 1 and 2 even if more relays are fitted.
4.
The instrument must be in normal measure mode i.e. if the instrument is powered up so that it is in
CAL
mode then the easy access will not function. If in doubt then remove power from the instrument,
wait for a few seconds then apply power again.
5.
If the easy access facility is used then the only way to view or alter any other function settings is to
power up via
CAL
mode i.e. there is not entry to
FUNC
mode unless the instrument is powered up in
CAL
mode.
See the "Analog PI Control Output" chapter for an explanation of the analog PI control functions
available when the optional analog output is fitted.
A1Lo
(alarm low setpoint)
Displays and sets the low setpoint value for alarm 1 relay. The low alarm setpoint may be disabled by
pressing the
^
and
v
pushbuttons simultaneously. When the alarm is disabled the display will indicate
OFF
. Use
^
or
v
to adjust the setpoint value if required. The alarm will activate when the displayed value is lower
than the
A1Lo
setpoint value. Each relay may be configured with both a low and high setpoint if required, if
so the relay will be activated when the display reading moves outside the band set between low and high
setpoints.
Page 11 of 46
LD4LNMAN-1.0-1
F U N C
F U N C
F U N C
F U N C
E n d
E n d
A 1 H i
d C P t
C A L
O F F
0
1 0 0
.0 0 2
Press & release
Press & release
Press & release
Press & release
Press & release
Press & release
Press & release
Press & release
Press & hold
Release
Hold
Press & release
F
Press & release
F
^
until
^
until
F
F
P
F
or
until
P
F
or
until
F
until
F
until
F
F
F
until
then press
^v
then press
^v
Switch off
instrument
Switch on
instrument
Example: Entering
mode to change alarm 1 high function
from
to
FUNC
A1Hi
OFF
100
Example: Entering
mode to change decimal point
function from
to
CAL
dCPt
0
0.02
