LumaSense Technologies ISQ 5-LO - Handbuch (Seite 21)

IMPAC pyrometers ISQ 5 · ISQ 5-LO
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 Text: input of a text consisting of max.
12 figures, e.g. machine07
 Serial No.: the serial number of the instrument
can be displayed automatically instead of the
text
 Setting of the actual time and date
 Brightness: Selection of brightness adjustment
of the video image between automatic or man-
ual mode
The video image is used for alignment of the py-
rometer onto the measuring object and shows the
following:
 measuring object and ambient area
 spot mark
 current temperature reading
 adjusted emissivity of the pyrometer
 actual time and date
 text or serial number
Note: The display of the time (12 or 24 h mode) is
depending on the adjustment of the temperature
scale (°C / °F) of the pyrometer:
24 hour display is combined with °C, 12 hour dis-
play with “am” and “pm” is combined with °F.
9.8.1
The PID controller
The ISQ 5-C and ISQ 5-LO-C are equipped with an integrated PID controller. This enables automatic control-
ling and monitoring of processes. The controller compares the current measuring temperature with the target
temperature value, calculates the control signal and gives a controller output signal of 0 or 4 to 20 mA (in-
stead of the temperature signal output). The controller is very fast and updates the signal with the pyrome-
ter's response time (< 10 ms). The built-in self-tuning algorithm determines automatically and a very good
approximation of the controlling parameters P, I and D.
Activating and deactivating of the controller as well as setting the parameters can be done via interface and
software. A click on the PID button in the pyrometer parameter window opens the setting window:
 Analog output:
Click on controller output (controlling
ON) to activate the controller. With
temperature (controlling OFF) the con-
troller is switched off.
 Desired temperature:
The desired temperature can be se-
lected within the selected temperature
range.
 Proportional band Xp (0.0 - 1000%)
A difference between the “desired
temperature” and the measuring
temperature generates a proportional
signal to the pyrometer output. This
signal can be amplified (Xp < 100%
alternatively
Kp > 1) or attenuated (Xp > 100% al-
ternatively Kp < 1), the amplification is
Kp = 100% / Xp.
If the proportional band is set to 0% (amplification =
), the controller operates as a two-state point con-
troller.