ASCON TECNOLOGIC - TLI 40 - OPERATING INSTRUCTIONS -
PAG. 8
48
AL3i
Alarm AL3 activation in
case of measuring error
no / yES
no
Group “AL4”
(parameters relative to alarm AL4)
Par.
Description
Range
Def.
Note
49
OAL4
Output where alarm
AL4 is addressed
Out1 / Out2
Out3 / Out4
OFF
OFF
50
AL4t
Alarm AL4 type
LoAb / HiAb
LHAb
LoAb
51
Ab4
Alarm AL4 functioning
0 ÷ 15
0
52
AL4
Alarm AL4 threshold
AL4L÷ AL4H
0
53
AL4L
Low
threshold
band
alarm AL4 or Minimum
set alarm AL4 for high
or low alarm
-1999 ÷ AL4H -1999
54
AL4H
High threshold band
alarm AL4 or Maximum
set alarm AL4 for high
or low alarm
AL4L ÷ 9999
9999
55
HAL4
Alarm AL4 hysteresis
OFF ÷ 9999
1
56
AL4d
Activation delay of
alarm AL4
OFF ÷ 9999
sec.
OFF
57
AL4i
Alarm AL4 activation in
case of measuring error
no / yES
no
Group “PAn”
(parameters relative to the user interface)
Par.
Description
Range
Def.
Note
58
USrb
Functioning of key “U”
noF / Aac
ASi / HoLd
d.Pic / 0.Pot /
r.Pic / r.P0P /
t.Pot
noF
59
diSP
Variable visualized on
the display
dEF / AL1
AL2 / AL3 /
AL4
dEF
60
Edit
Fast programming of
alarms threshold
AE / AnE
AE
Group “SEr”
(parameters relative to the serial communication)
Par.
Description
Range
Def.
Note
61
Add
Station address in case
of serial communication
0 … 255
1
62
baud
Transmission
speed
(Baud rate)
1200 / 2400 /
9600 / 19.2 /
38.4
9600
63
PACS
Access at the
programming through
serial port
LoCL / LorE
LorE
5.2 - PARAMETERS DESCRIPTION
GROUP “
]
InP” (PARAMETERS RELATIVE TO THE INPUTS):
These permit the definition of visualization modes of the
variable measured by the probe.
HCFG
– INPUT TYPE : This permits selection of the input type :
thermocouples (tc), thermo-resistances or thermistors (rtd),
normalized signals in current (I), in voltage or potentiometer (UoLt)
or a measurement coming from the serial line (SEr).
SaSP
- SAMPLING RATE IN CASE OF INPUT WITH V/I OR
POTENTIOMETER SIGNALS: For the instruments with input for
normalised signals or for potentiometer This permits selection of the
sampling rate . The parameter can be programmed as:
= 8: 8 sampl./sec. with resolution better than 32.000 steps.
= 16:16 sampl./sec. with resolution better than 16.000 steps.
= 32: 32 sampl./sec. with resolution better than 8.000 steps.
= 64: 64 sampl./sec. with resolution better than 4.000 steps.
SEnS
– PROBE TYPE: Depending on what is programmed on par.
“HCFG” this permits the type of probe to be selected :
- for thermocouples (“HCFG”=tc): J (J), K (CrAL), S (S), B (b), C (C),
E (E), L (L), N (n), R (r), T (t), or for TECNOLOGIC infrared sensors
IRS series range A with linearization J (Ir.J) or K (Ir.CA)
- thermoresistances/thermistors (“HCFG”=rtd): Pt100 IEC (Pt1) or
thermistors PTC KTY81-121 (Ptc) or NTC 103AT-2 (ntc)
- normalized signals in current (“HCFG”=I): 0..20 mA (0.20) or 4..20
mA (4.20)
- normalized signals in voltage (“HCFG”=UoLt): 0..50 mV (0.50),
0..60 mV (0.60), 12..60 mV (12.60), 0..5 V (0.5), 1..5 V (1.5), 0..10 V
(0.10) or 2..10 V (2.10), or potentiometer (Pot) with resistance > 1
K
Ω
.
rEFL
- REFLECTION COEFFICIENT FOR IRS SENSORS: this can
be used only when “SEnS” = Ir.J or Ir.CA and allows any measuring
errors caused by the environment’s lighting and the reflexivity of the
material to be corrected. Set this parameter to a high value when
the material to be measured is particularly light/reflective and reduce
it when the surface is especially dark/non-reflective , keeping in
mind however that for most materials, the recommended value is
between 1.00 and 0.80.
SSC
– LOW SCALE LIMIT IN EVENT OF INPUT WITH V/I
SIGNALS : This is the value the instrument has to visualise when
the minimum value that can be measured on the scale (0/4 mA,
0/12 mV, 0/1 V or 0/2 V) is present at the output.
FSC
– HIGH SCALE LIMIT IN EVENT OF INPUT WITH V/I
SIGNALS : This is the value the instrument has to visualise when
the maximum value that can be measured on the scale (20 mA, 50
mV, 60 mV, 5 V or 10 V) is present at the input.
0.Pot -
ZERO VALUE FOR POTENTIOMETER INPUT: This is only
usable when "SEnS" = Pot and allows the value to be established
within the range SSC... FSC, for which the indication of the
instrument is 0.
dP
– NUMBER OF DECIMAL FIGURES: This allows determination
of the measuring resolution as 1 (0), 0.1 (1), 0.01 (2), 0.001 (3). In
the case of temperature probes the allowed resolutions are 1° (0)
and 0.1° (1).
Unit
– TEMPERTURE UNIT OF MEASUREMENT : When the
temperature is measured by temperature probes, this parameter
permits definition if the visualisation is expressed as degree
Centigrade (°C) or Fahrenheit (°F).
Filt
– INPUT DIGITAL FILTER : This permits programming of the
constant of time of the software filter referring to the measured input
value (in sec.) in order to reduce noise sensitivity (increasing the
time of reading).
OFSt
– MEASURING OFFSET: Positive or negative Offset which is
added to the value measured by the probe.
rot
– ROTATION OF THE MEASURING STRAIGHT LINE: In this
way the offset programmed on par. “OFSt” is not constant for all
measurements. By programming “rot”=1.000, the value “OFSt” is
simply added to the value read by the probe before visualisation and
it remains constant for all the measurements. If instead one does
not want the programmed offset to be constant for all the
measurements, it is possible to carry out calibration on two desired
values.
In this case, to define the values to be programmed on par. “OFSt”
and “rot”, it is necessary to enforce the following formulae :
“rot” = (D2-D1) / (M2-M1)
“OFSt” = D2 - (“rot” x M2)
where: M1 =measured value 1; D1 = visualisation value when the
instrument measures M1
M2 =measured value. 2; D2 = visualisation value when the
instrument measures M2
It then follows that the instrument will visualise :
DV = MV x “rot” +
“OFSt”
where: DV = visualised value; MV= measured value
dIF
- DIGITAL INPUT FUNCTION: this allows the digital input
function to be defined as:
= noF : the input does not carry out any function
= Aac : By closing the contact connected to the digital input it is
possible to reset a memorised alarm
= ASi
:By closing the contact connected to the digital input it is
possible to silence an active alarm
= HoLd : By closing the contact connected to the digital input the
measurement taken at that moment is blocked (N.B.: not the
reading on the display, therefore the indication may stabilise itself
with a delay that is proportional to the measuring filter). With the
hold function turned on, the instrument carries out control according
to the memorised measurement. By opening the contact, the
instrument starts normal measurement acquisition once more.
