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YARWAY LED ILLUMINATOR SYSTEM FOR COLOR-PORT GAUGES
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
2 INTRODUCTION
Yarway LED illuminators are designed to be
mounted readily to the Yarway Color-Port gauge,
as well as most competitive color-port gauges.
All illuminators are complete with a color
screen containing two strips of glass - one red
and one green. Due to the difference in the
index of refraction of light through water and
steam, only the corresponding color is seen:
green for water, red for steam.
Yarway LED illuminators are available in lengths
from 5 ports to 26 ports.
2.1 System description
Yarway LED illuminators comprise five main
components. Use the exploded parts diagrams in
Section 13 as additional reference material.
Illuminator - light source. It is composed of
an anodized, rigid, extruded aluminum that
protects the PC boards.
Bracket - used to mount illuminator to Color-
Port gauge. The brackets can be moved up
and down along the extruded body making
assembly and disassembly quick and easy.
Power supply - provides intrinsically safe
power to the LED illuminator. Power supply is
mounted inside an explosion proof enclosure
that is mounted to the illuminator body.
Cordset - used to connect the power supply
to the illuminator. The cordset consists of a
straight female connector and a straight male
connector.
Level display - focuses the light from the LED
illuminator to show the level.
2.2 Accessories
Level display hood and hooded mirror -
enhance the images for outdoor installations or
redirect the image for viewing below the gauge.
3 AVAILABLE MODELS
Yarway LED illuminators are made to fit/cover
the whole length of the Color-Port gauge. One
power supply is required per 26 ports (208 LEDs).
On average an LED will give the user 100,000
hours of use compared to 1000 hours for a
standard light bulb.
3.1 Power Requirements & Specifications
Input: 115/230 VAC ±10%, 50/60 Hz
Power consumption: up to 400 mA max at
115/230 VAC
Max distance from power supply to LED
illuminator: 200 ft. (consult Emerson if longer
distance is required)
Ambient temperature range for general
location: -40°F to 158°F (-40°C to 70°C)
Ambient temperature range for hazardous
location: -40°F < ta < +140°F (-40°C < ta < +60°C)
Ingress protection: IP66
Max altitude: 6.561 ft.
Electrical connection size:
¾" FNPT for US and Canada
M20 for ATEX and IECEx
• Unit must be wired with 14 AWG wire
minimum, with a maximum wire length of
1000 feet.
• An external switch or circuit-breaker
and external overcurrent protection is
recommended to be installed near the unit.
• Unit can be use indoors and outdoors.
• Maximum relative humidity 80% for
temperatures up to 88°F (31°C) decreasing
linearly to 50% relative humidity at 104°F
(40°C).
WARNING
Do not tamper with Yarway's power supply
or its components.
3.2 Approvals
General location
UL61010-1/CSA C22.2 No. 61010-1
Explosion-proof with intrinsically safe output
MET Certified for US and Canada
Class I Division 1 Groups A*, B, C, D T4
* only for Mounting Option 2
ATEX Approved
II 2G (Power Supply)
II 1G (Illuminator)
IECEx Approved
Ex d [ia Ga IIC] IIC T4 Gb (Power Supply)
Ex ia IIC T4 Ga (Illuminator)
When installed in accordance with Emerson
Control Drawings:
• For Division Locations - 18WL4-009 (Figure 6A)
• For ATEX/IECEx - 18WR6-009 (Figure 6B)
2
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