Ascon Tecnologic - KM5P Line - ENGINEERING MANUAL - PAG. 19
[100] trSP - Selection of the value to be
retransmitted
(Master)
Available:
When [98] Add different from oFF.
Range:
nonE
Retransmission not used (the instrument is
a slave);
rSP
The instrument becomes a Master and
retransmits the operative set point;
PErc
The instrument becomes a Master and
retransmits the power output.
Note:
For more details see [82] SP.rt (Remote set point type)
parameter.
]
CAL group - User calibration group
This function allows to calibrate the complete measuring
chain and to compensate the errors due to:
–
Sensor location;
–
Sensor class (sensor errors);
–
Instrument accuracy.
[101] AL.P - Adjust Low Point
Available:
Always.
Range:
-1999... (AH.P - 10) engineering units.
Note:
The minimum difference between AL.P and AH.P is
equal to 10 Engineering Units.
[102] ALo - Adjust Low Offset
Available:
Always.
Range:
-300... +300 engineering units.
[103] AH.P - Adjust High Point
Available:
Always.
Range:
From (AL.P + 10) to 9999 engineering units.
Note:
The minimum difference between AL.P and AH.P is
equal to 10 Engineering Units.
[104] AH.o - Adjust High Offset
Available:
Always.
Range:
-300... +300 Engineering Units.
Example:
Environmental chamber with 10... 100°C of
operative range.
1.
Insert in the chamber a reference sensor connected with
a reference instrument (usually a calibrator).
2.
Start the control of the instrument, and set a set point
equal to the minimum value of the operative range (e.g.:
10°C). When the temperature in the chamber is steady,
take note of the temperature measured by the reference
system (e.g.: 9°C).
3.
Set [138] AL.P = 10 (low working point) and [139] ALo = -1
(the difference between the reading of the instrument and
the reading of the reference system). Note that after this
set, the measured value of the instrument is equal to the
measured value of the reference system.
4.
Set a set point equal to the maximum value of the
operative range (e.g.: 100°C). When the temperature
in the chamber is steady, take note of the temperature
measured by the reference system (e.g.: 98°C).
5.
Set [140] AH.P = 100 (low working point) and [141] AHo = +2
(the difference between the reading of the instrument and
the reading of the reference system). Note that after this
set, the measured value of the instrument is equal to the
measured value of the reference system.
AH.P 100°C
AH.o = 2
AL.o = -1
AH.P 10°C
Real curve
Modified curve
Note:
Parameters from [105] to [125] are reserved.
]
PrG Group - Programmer function parameters
These instruments are equipped with 2 pages of 4 program
each (8 programs total).
Each program is composed by 6 groups of 2 steps each (12
steps total)
The first step is a ramp (used to reach the desired set point),
the second is a soak (on the desired set point).
When a RUN command is detected the instrument aligns
the operative set point to the measured value and starts to
execute the first ramp of the selected program.
When you need a program with more than 12 segments it is
possible to link the selected program with the next one.
Example: You are preparing the Page 1, Program 1 but you
need 20 steps.
At the end of the 12 segments of Program 1 you will find a
parameter “[164] P1.c2 – Program 1 continue on Program 2”;
setting YES you will link Program 1 with Program 2.
Now you can program the 8 steps (of Program 2) necessary
to complete your profile.
Running Program 1, the instrument performs the first
program followed by the 8 steps of program 2.
In addition, every soak is equipped with a wait band which
suspends the time count when the measured value goes out
of the defined band (guaranteed soak).
Moreover, for each segment it is possible to define the status
of two events. An event can drive an output and make an
action during one or more specific program steps.
Some additional parameters allow to define the time scale,
the automatic RUN conditions, the repetition number and the
instrument behaviour at the end of the program.
Notes: 1.
All steps can be modified during program
execution.
2.
During program execution the instrument stores the
segment currently in use and, by a 1 minute interval,
it stores also the elapsed time of the soaks.
If a power down occurs during program execution, at
the next power up the instrument is able to continue
the program execution starting from the segment in
progress at power down and, if the segment was a
soak, it is also capable to restart from the soak time
minus the stored elapsed time.
In order to obtain this features, the [95] dSPu
“Status of the instrument at power up” parameter
must be set to
AS.Pr
.
If [95] dSPu value is different from
AS.Pr
, the
storing function will be inhibited.
The structure of the programmer parameters is based on:
–
1 group with the “global” parameters [PrG group](page
selection, active program selection status of the active
program, etc.).
–
1 group for every program (Page 1:Pr1, Pr2, Pr3 and Pr4
and Page 2: Pr5, Pr6, Pr7, Pr8).
