Section 3 - Operation
3.1
Front and Side Panel Controls and Indicators
Figure 2. Front Panel
Process Temperature:
This field displays the current temperature of the target plate.
Setpoint Temperature:
This field displays the desired target plate temperature. Once the target plate
reaches this desired temperature, both displays will read the same value.
NOTE:
P.I.D. Control:
Proportional, integral, derivative control ( P.I.D.) is a temperature control algorithm used
in high-end temperature controllers. The controller causes the process to attain the desired
temperature by turning the process on or off. The process may be a heater or refrigerator.
As the process temperature approaches the setpoint temperature the hot or cold process
will be pulsed to reduce the corrective measures and minimize overshooting. The
controller provides a visual representation of the process status through LED indicators. An
indicator may be lit continuously, blink or shut off entirely to indicate that the process is
on, being pulsed, or off, respectively.
NOTE:
BB-4A Blackbody Calibrator
3
3-1
BB-4A
212F/100C
Temperature
Range
1800F/982C
TM
SETPOINT TEMPERATURE
PROCESS TEMPERATURE
HEATER CAVITY
MODE KEY
TEMPERATURE RANGE
REFERENCE BAR
LOWER SETPOINT KEY
RAISE SETPOINT KEY
PARAMETER/
ACCESS KEY
ON/STAND-BY
POWER SWITCH