Precision Control Systems SpotIR 4085 - Manual (Page 7)

Heat Flux Densities
The heat flux generated at the focal point can be as high as 650 watts per square inch
(101 watts per square cm) at the center of the focal point with a full shield and 335
watts per square inch (52 watts per square cm) without a shield.
Heater Module
The heater module is 7.22 inches (183 mm) long without a reflector shield. The
reflector shield adds 4.5 inches (114 mm) to the overall length of the heater.
Reflector Shield
Three shield types are available: full shield, c-cut shield and circle-cut shield. If a
particular shield interferes with objects near the target being heated, it can be cut in the
field to fit the application. The reflector shield is attached to the heater module with
three screws. The shield type that is required is specified at the time the heater is
ordered. Additional shields can also be purchased so that a single heater can be used
for a variety of applications.
Lamps
A high intensity, short wave, tubular quartz, infrared lamp is available for the Model
4085. The tungsten emitter in the lamp have an operating temperature of
approximately 4000°F (2205°C). Screw-in lamp sockets are spring loaded to provide
positive focal positioning. The 750Q/CL lamp (750 watts) products a 0.25 inch (6.4
mm) diameter focal point. Each heater requires one lamp to operate. The 750Q/CL
lamp is installed in the standard Model 4085 heater prior to shipment.
Air Cooling
Clean shop air can be provided through the air intake fitting to cool the heater for
extended duty applications. The air is directed to the lamp socket and then around the
rear side of the reflector to be exhausted around the rim of the reflector. Cooling air
should be clean, oil-free and at 100°F (38°C) or less. Air flow rates required to operate
the heater, and recommended duty cycles with and without air cooling, are listed in
Specifications.
Power Cord
The power cord is 6 feet (1829 mm) long and is equipped with a 120V 15 amp plug.
Mounting
Two ¼-20 UNC by 3/8 inch (9.5 mm) deep tapped holes are provided to mount the
heater.
Optional Power Controller
The Model 4085 heater can be ordered with the Model 5420 SCR Power Controller.
When so ordered, the heater, power controller, and all necessary interface wiring to
connect both units together are shipped. Both units have ¼-turn electrical safety plugs