Power Switch
The power switch has two positions, “ON and “STANDBY.”
ON STANDBY
The fans are activated whenever the unit is plugged into a live power outlet.
Regardless of whether the power switch is on, the fans will run for a period of 2
hours or until the power is turned on. The fans will remain on as long as the unit
is turned on. Once the unit is switched from “ON” mode to “STANDBY”
mode the fans will again run for 2 hours. Never disconnect the power cord
while the unit is still cooling down. A safety hazard may result and the unit
may get damaged.
Temperature Controller:
The controller is used for setting the desired temperature of the cavity. The
controller display provides process temperature and setpoint temperature. A
4 button keypad is used to set the setpoint temperature and change engineering
units.
Temperature Reference Meter:
The temperature reference meter displays the cavity temperature with high
precision. See Section 3.5 for parameter programming information.
3.2
Heater Cavity and Aperture Plate
The heater cavity is a near ideal blackbody source. The emissivity of the cavity
is 0.99. When calibrating an IR pyrometer, hold the pyrometer perpendicular
to the aperture for optimal performance. The proper distance between the IR
pyrometer and the target plate depends on the field of view of the pyrometer.
If the pyrometer is too far away, it will scan unwanted surfaces outside of the
perimeter of the target plate. Holding the pyrometer too close could introduce
undesirable heat to the IR detector of the pyrometer. Always aim the gun
toward the center of the cavity cone. Then search for the hottest spot. Use the
pyrometer’s peak detector feature.
Operation
3
3-2