Precision Control Systems SpotIR 4085 - Manual (Page 12)

Section 4
Operating Instructions
Note:
Follow all safety procedures and practices called out in Section 2 of
this manual.
Operating the model 4085 heater is quite simple and straight-forward once properly
installed and mounted within a given application. A SCR (Silicon Controlled Rectifier)
power controller is required which supplies electrical power to the heater. Typical
examples of this type of power controller include the Model 5420 which can be
purchased with your 4085.
The Model 4085 is shipped with a 750 watt infrared lamp installed. At fully applied
power (120 volts) the model 4085 emitter generates 750 watts of energy. The emitter
will generate 90% output within 3 seconds of applied power.
The maximum infrared energy generated by the Model 4085 will be concentrated at the
heater focal point (approximately 11.25 inches - 286 mm) from the back side of the
heater housing (see Figure 3). As shown, this focal point resides at a point inside the
Full Shield and C-Cut Shield. Even though the maximum infrared energy resides at
this point, a large portion of energy exits the shield at the shield opening. Moving the
heater closer to or further from the target (relative to the focal point) will decrease the
amount of energy impinging on the target resulting in reduced target temperatures.
Due to the wide variety of materials that can be heated with the Model 4085,
experimentation with different power settings to the heater is recommended to
determine optimal heater-to-target distance relative to the supplied power.
Note:
Extreme care should be taken to have the heater pointed away
from any object that may burn when power is applied to the
heater.
Figure 3