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THE STRONG ULTRA 80 is a reflector type, direct current lamphouse for large for-
mat (70mm+) motion picture projection which uses a horizontally mounted xenon bulb as the light
source. Type 40001 is designed for use with the XH7000HS xenon bulb, and Type 40002, for the
XH10000V(H) bulb. Both type bulbs are manufactured by the Hanovia Division, ORC Lighting
Products, Azusa, California. The lamphouse reflector is a metal, deep ellipse type, with a "cold"
(dichroic) coating to reduce aperture heat and prolong bulb life. The reflector is designed to operate
in a fixed position 34½ to 35 inches from the projection film plane.
USE ONLY THE SPECIAL XENON POWER SUPPLIES manufactured by Strong
International. The 40001 lamphouse requires a power supply capable of providing 120-160 DC am-
peres at 43-49 V.DC. Nominal operating current for a 7000 watt bulb is 150 amperes; do not exceed
160 amperes. The xenon power supply used with the 40002 lamphouse must be capable of producing
135-200 DC amperes at 52-58 V.DC. The nominal operating current of a 10,000 watt bulb is 180
amperes; do not exceed 200 amperes. The xenon power supply must also include a 120 V.AC
lamphouse control circuit.
THE ADJUSTMENT CONTROL to position the xenon bulb in relation to the reflec-
tor is located on the rear of the lamphouse, behind the removable cover panel. This control permits
horizontal and vertical movement and focus control of the xenon bulb.
A TERMINAL STUD, located near the bulb anode support on the base pan of the
lamphouse, is provided as a connecting point for the lamphouse DC (+) lead and the anode lead
attached to the xenon bulb.
THE LAMPHOUSE CONTROL PANEL includes a DC ammeter to display the
operating current of the lamp. A pushbutton switch above the ammeter changes the reading to indi-
cate the DC voltage at the arc. This capability permits calculation of the lamp power while the lamp
is operating (amperes x volts = wattage). Pressing the switch at ignition will also briefly display the
"no load" DC voltage.
AN ELAPSED TIME METER indicates the total number of hours the lamp has been
in service and provides a means of noting the number of hours each xenon bulb has operated. It is
advisable to replace the xenon bulb upon expiration of warranty hours. See the warranty information
provided by the manufacturer of the xenon bulb.
THE LAMP BLOWER(S), internally wired in the lamphouse, operate on AC voltage
and are required to maintain the seals of the bulb at a safe operating temperature. The top blower is
fused at 3 amperes. A second side-mounted blower is used on the Type 40002 to cool the reflector for
10,000 watt operation. The blowers will operate continuously until control voltage is turned off at the
xenon power supply.
PREFACE
U80/001
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