2
PENBERTHY
LED ILLUMINATOR FOR FLAT GLASS GAUGES, HAZARDOUS LOCATION
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
2 INTRODUCTION
Penberthy LED illuminators are designed to
be readily mounted and able to fit any style of
Penberthy flat glass liquid level gauges, as well
as most competitor’s flat glass gauges.
Penberthy LED illuminators provide uniform
light distribution over the entire length of
liquid level gauge assemblies. Penberthy LED
illuminators are available in lengths from 6”
to 104" in multiples of 2” (for flat glass gauges).
2.1 System description
Penberthy LED illuminators are comprised
of four main components. Use the exploded
diagram view in Sections 13-15 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 level
gauge. There are three types of brackets:
standard transparent, reflex, and TSL/TSM.
The brackets can be moved up and down
along the extruded body making assembly and
disassembly quick and easy.
3 AVAILABLE MODELS
Penberthy LED illuminators are available with
white LED’s only and are made to fit/cover the
whole length of the gauge up to 104 inches.
One power supply is required per 208 LED’s
(104 inches).
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 and 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 Penberthy’s power supply
or its components.
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.
1 SAFETY INFORMATION
IMPORTANT
It is the user's responsibility to ensure that all
connections and wiring comply with all applicable
codes, specifications, sales contracts or public
laws.
IMPORTANT
The sales order lists the required operating
voltage. Operation at a voltage other than
specified will cause equipment damage.
The Flat Glass gauges operate at high
temperatures. High surface temperature can
be expected where this equipment connects to
the gauge.
WARNING
Do not touch until the unit has cooled.
The Flat Glass gauge must be adequately
supported to hold the weight of the LED
illuminator. Shut-off LED illuminator before
doing any maintenance or repairs.
