Document No: 9100-127-1835-99 Rev C
Page 2 of 5
1501 Route 34 South, Farmingdale, NJ 07727
Tel: (732) 919-3119 Fax: (732) 751-5778 www.dialight.com
1: Introduction
The High Bay light fixture series is designed for illumination of industrial locations. These fixtures use the
latest in solid state lighting technology for long life, low maintenance, and high efficiency.
The unique optical design focuses light downward to where it is needed, giving improved efficiency over a
conventional HID luminaire.
An internal power-factor-corrected switch-mode supply allows it to be used from any nominal 100V-277V,
50/60Hz AC supply.
This equipment is suitable for use in non-hazardous locations and the following hazardous locations:
CLASS I DIV 2 GROUPS A, B, C, D
CLASS II DIV 2 GROUPS F, G
2: Installation
Warning:
To avoid the risk of fire, explosion, or electric shock, this product should be installed, inspected, and
maintained by a qualified electrician only, in accordance with all applicable electrical codes.
To avoid electric shock:
Be certain electrical power is OFF before and during installation and maintenance.
Luminaire must be connected to a wiring system with an equipment-grounding conductor.
To avoid explosion:
Make sure the supply voltage is the same as the rated luminaire voltage.
Do not install where the marked operating temperatures exceed the ignition temperature of the
hazardous atmosphere.
Do not operate in ambient temperatures above those indicated on the luminaire nameplate.
Recommended mounting height: 40+ feet
Pendent Mount Installation Steps:
For maximum long term reliability and light output, the light must be installed in free air.
o
The fixture design incorporates an over-temperature control circuit that reduces input
power should internal temperatures reach a maximum level. As a result, light output and
input power may be reduced above 45
°C ambient temperature.
The fixture is threaded for 3/4
” NPT in order to be assembled to conduit.
o
Calculate and measure required conduit length.
o
Feed the power cable through the conduit and into the junction box
(18” minimum cable
length exiting the fixture is provided).
o
Attach the fixture to the conduit
(using Teflon tape or pipe sealant)
.
o
Insert 1/4-20 set screw in order to prevent rotation of the fixture on the conduit.
