19
95-8714
6.3
REPLACING AN EXISTING MODEL OPECL
WITH AN LS2000
Flat Surface Mount
An optional adapter plate (part number 012718-
003) is available for converting an existing
OPECL flat surface mount to an LS2000 flat
surface mount without drilling new holes. See
Figure 11 for dimensions. The mounted LS2000
will have the following offsets compared to the
OPECL detector (when looking straight at the
wall/beam).
Left/right = 0”
Up/down = 1 inch lower
In/out = 0.3” closer to the wall/beam for the
LS2000.
Pole Mount
The LS2000 can be mounted to the same pole
as the Model OPECL using U-bolts. The LS2000
will have the following offsets compared to the
OPECL detector.
Left/right = 0”
Up/down = 0” if the top U-bolt for the LS2000
is mounted 1” lower than the top U-bolt of the
OPECL detector.
In/out = 0.8” closer to the pole for the LS2000.
24 VDC POWER SUPPLY REQUIREMENTS
Calculate the total gas detection system power
consumption rate in watts from cold start-up.
Select a power supply with adequate capability
for the calculated load. Ensure that the selected
power supply provides regulated and filtered 24
Vdc power for the entire system. If a back-up
power system is required, a float-type battery
charging system is recommended. If an existing
source of 24 Vdc power is being utilized, verify
that system requirements are met.
NOTE
If disconnection of power is required,
separate disconnect capability must be
provided.
WIRING CABLE REQUIREMENTS
Always use proper cabling type and diameter
for input power as well as output signal wiring.
14–18 AWG, 2.5–1.0 mm
2
shielded stranded
copper wire is recommended.
Always install a properly sized master power
fuse or breaker on the system power circuit.
NOTE
The use of shielded cable in conduit
or shielded armored cable is required
for ATEX conformance. In applications
where the wiring is installed in conduit,
dedicated conduit is recommended.
Avoid low frequency, high voltage, and
non-signaling conductors to prevent
nuisance EMI problems.
CAUTION
The use of proper conduit installation
techniques, breathers, glands, and seals
is required to prevent water ingress and/
or maintain the explosion-proof rating.
WARNING
It is required that each conduit plug
or fitting be wrench tightened to an
appropriate installation torque and
meet the minimum thread engagement
requirements per the applicable local
standards, codes and practices in order
to retain the defined ingress protection
rating. All unused entries must contain
appropriately rated conduit plugs or
fittings. PTFE sealant (or equivalent)
should be used on NPT threads.
2X 13.0
(33.02)
5.0
(12.7)
6.0
(15.24)
4X 0.5
(1.27)
2X 0.5
(1.27)
2X 0.5
(1.27)
14.0
(35.6)
0.5
(1.27)
4X 0.41 THRU
2X 3/8-16 UNC THRU
B2668
2X 5.0
(12.7)
Figure 11—Dimensions of 012718-003 Flat Surface
Mounting Plate in Inches (cm)