11
Connections
Serial Data
output option
0, 2 or 4 Alarm Relay
output options
-
+
AL4 AL3 AL2 AL1
B
A
C
o
m
m
E
n
a
b
le
T
x
D
R
x
D
C
o
m
m
E
n
a
b
le
Rated 2A 250VAC Resistive
Enable
is used in mode C1
to activate or de-activate the
RS232 or RS485 serial output.
Connect to Comm to continually
transmit data.
27 26 25 24 23 22 21 20 19 18 17 16 15 14
R S 4 8 5
R S 2 3 2
Output option board (if fitted)
Analog
output
option
Bu
tt
o
n
f
u
n
c
ti
o
n
R
e
m
o
te
b
u
tt
o
n
s
Display’s front panel
buttons enabled/disabled
by jumper or connection
Remote programming button connector
On one of the display boards, you will find a 7 way connector, to which you can wire remote
programming buttons, to allow adjustment of the display’s settings when the display is
inaccessible.
You can also enable or disable the display’s front panel buttons, either by a remote contact
closure, or by an on-board push-on jumper switch, which is located near to the remote
button connector. When the contact is closed, or the push-on switch fitted, the front buttons
are enabled.
Connectors and options
Connectors may be
present even if output
options are not installed.
Refer to rating label to see
installed options.
!
Warning:
Disconnect all power before
removing the rear of the display
Rear case screws - please note
The rear panel is held in place with finger-screws, which
only need to be gently tightened.
Do not use tools to tighten or loosen the screws, as
this could cause damage to the internal threads.
Close contact or fit jumper to
enable front panel buttons
OK
Output
Set2
Set1
Common
Common
Enable
