13
Referring to Figure 1 or 1b as the case may be (stand-alone or connected to an ISC/OLDHAM central unit):
§
Remove the protection cover and the display card to gain access to the connection terminals
§
Check that the main circuit is correctly programmed for the type of detector connected (see Figure 7)
§
Feed the cables into the cable glands
§
Connect the 2 active wires of the power supply (connectors J1 and J2): V+ and V-
§
Connect the transmitter to the earth via the external or internal earth terminals
§
Connect the wires for the functions used (4-20 mA, RS485, relays, etc.)
§
Refit the display circuit and protection cover correctly
§
Check that all cable glands and plugs are tight.
I
I
I
I
I
I
.
.
F
F
I
I
R
R
S
S
T
T
S
S
T
T
A
A
R
R
T
T
-
-
U
U
P
P
§
Check that connection and fastening have been carried out correctly,
§
Disable the alarms of the facility to prevent any unintentional triggering during the operation,
§
Switch on the power supply and leave to stabilise for 2 to 3 minutes,
§
During the first minute of warming up, the detector delivers a current of 2 mA,
§
Check the zero (4 mA) and response to the standard reference gas,
§
If necessary, adjust the zero and sensitivity,
§
Set the system to normal operation by deactivating the disable.
Note:
The detector will now run an automatic cyclic self-test.
1
1
.
.
V
V
i
i
s
s
u
u
a
a
l
l
i
i
n
n
f
f
o
o
r
r
m
m
a
a
t
t
i
i
o
o
n
n
1.1.
At start-up:
§
Test of all digits and LEDs
§
Display of software version used
§
Stabilisation and test of measurement sensor
1.2.
During normal operation:
§
Measurement display
§
Display of type of gas and unit
§
Green LED flashes
§
Yellow LED off
1.3.
If a fault occurs:
§
Yellow LED flashes and error message displayed.
1.4.
Information accessible on the display via the remote control:
§
Date and time settings
§
Internal parameters used for maintenance,
§
Digital address(es),
§
Access code.
O
O
N
N
/
/
O
O
F
F
F
F
FAULT
A
A
L
L
1
1
IR receiver
(remote control)
A
A
l
l
p
p
h
h
a
a
n
n
u
u
m
m
e
e
r
r
i
i
c
c
a
a
l
l
d
d
i
i
s
s
p
p
l
l
a
a
y
y
(units, gas, etc.)
A
A
L
L
2
2
