PRESYS
Instruments
T-1200PIR
Page 13
Internally, the set point changes at a limited rate to make possible a safer and
more homogeneous heating of the internal ceramic tube. Besides, the PID parameters
and algorithm were adjusted to assure a minimal stabilization time and overshoot.
2.4 - Programmable Operating Mode
Pre-configured programs can be loaded from the calibrator memory, enabling
the programmable operating mode. The temperature programmed values of the cavity
are used directly, with no need to enter the set point.
The display shows
STEPn
beside the cavity temperature set point value in the
programmable mode. The number of the program is indicated by
n
. Using the keys
and
, the programmed values of temperature set point are changed. The numeric
keypad continues available for manual selection of the black body cavity temperature in
the same way of the manual operating mode.
The automatic scan over the programmed temperatures is implemented by
defining the stabilization time of the thermo-element in the black body cavity.
The key
enables the automatic scan over the points. When pressed, the
message
STEPn
gives place to
0s
and the calibrator waits for the stabilization time
configured from 1 to 9 minutes, by the keys
1
to
9
. The automatic scan is disabled by
pressing key
again.
A countdown of the stabilization time is only started when the cavity temperature
reaches the programmed temperature and stabilizes within a range of approximately
0.20 ºC. At this time the buzzer beeps, in case it is configured to
YES
.
presys
and algorithm were adjusted to assure a minimal stabilization time and overshoot.
and algorithm were adjusted to assure a minimal stabilization time and overshoot.
-configured programs can be loaded from the calibrator memory, enabling
-configured programs can be loaded from the calibrator memory, enabling
the programmable operating mode. The temperature programmed values of the cavity
the programmable operating mode. The temperature programmed values of the cavity
are used directly, with no need to enter the set point.
are used directly, with no need to enter the set point.
beside the cavity temperature set point value in the
beside the cavity temperature set point value in the
programmable mode. The number of the program is indicated by
programmable mode. The number of the program is indicated by
n
n
. Using the keys
. Using the keys
, the programmed values of temperature set point are changed. The numeric
, the programmed values of temperature set point are changed. The numeric
keypad continues available for manual selection of the black body cavity temperature in
keypad continues available for manual selection of the black body cavity temperature in
the same way of the manual operating mode.
the same way of the manual operating mode.
The automatic scan over the programmed temperatures is implemented by
The automatic scan over the programmed temperatures is implemented by
defining the stabilization time of the thermo-element in the black body cavity.
defining the stabilization time of the thermo-element in the black body cavity.
enables the automatic scan over the points. When pressed, the
enables the automatic scan over the points. When pressed, the
gives place to
gives place to
0s
0s
and the calibrator waits for the stabilization time
and the calibrator waits for the stabilization time
configured from 1 to 9 minutes, by the keys
configured from 1 to 9 minutes, by the keys
1
1
to
to
9
9
. The automatic scan is disabled by
. The automatic scan is disabled by
presys
again.
again.
A countdown of the stabilization time is only started when the cavity temperature
A countdown of the stabilization time is only started when the cavity temperature
reaches the programmed temperature and stabilizes within a range of approximately
reaches the programmed temperature and stabilizes within a range of approximately
0.20 ºC. At this time the buzzer beeps, in case it is configured to
0.20 ºC. At this time the buzzer beeps, in case it is configured to