It is also possible to prevent activation of the output after the
instrument is turned on, for the time set in the parameter
“od”
.
The function is disabled by “od” = OFF.
During the power on delay phase, the display shows the indication
od,
alternating with the normal programmed visualisation.
4.4 - ALARM FUNCTIONS
The alarm functions of the instrument work on the led AL, on the
internal buzzer (if present) and on the output AL (if present)
The buzzer are activated in alarm conditions and can be disabled
(alarm silencing) manually by pressing any key of the instrument .
Any active alarm is shown on the instrument display with the
lighting up of the AL led .
Any silenced alarm status is shown by the AL led flashing .
The output AL are activated in alarm status but cannot be disabled
manually and are therefore only disabled when the alarm status
ceases.
The alarm conditions of the instrument are:
- Probe errors “E1”, “-E1”
- temperature alarms “HI” and “LO”
- External alarms “AL”
4.4.1 - TEMPERATURE ALARMS
The temperature alarms, that are relative type, work according to
the probe measurement, the alarm thresholds set in parameters
“HAL”
(maximum alarm) and
“LAL”
(minimum alarm) and the
relative differential
“dAL”.
Using some parameters it is also possible to delay the
enablement and the intervention of these alarms.
These parameters are:
“PAL”
- is the temperature alarm exclusion time on switching on
the instrument if the instrument is in alarm status when it is
switched on.
“ALd”
- is the temperature alarm delay activation time
The temperature alarm is enabled at the end of exclusion time and
is enabled after the “ALd” time when the temperature measured by
the probe exceeds the value [”SP”+”HAL”] or or goes below the
value [”SP”-”LAL”].
The maximum and minimum temperature alarms can be disabled
by setting the relative parameters "HAL" and "LAL" = OFF.
At the same time as the signalling of the alarm device (buzzer and
output AL), the instrument signals the alarm by turning on the led
light AL, and visualises on the display:
- Alternately
HI
and the measured temperature for maximum alarm
- Alternately
LO
and the measured temperature for the minimum
alarm
tim e
d A L
d A L
A L
o ff
O N
H I
L A L
S P
H A L
T e m p .
L O
o ff
o ff
O N
4.4.2 - EXTERNAL ALARM
The instrument can signal an external alarm by activating the digital
input with the function programmed as “diF” = 3 (see par. 4.5).
At the same time as the signalling of the alarm (buzzer and/or
output), the instrument signals the alarm by turning on the led AL
and visualising
AL
and the measured temperature alternately on
the display.
4.5 - DIGITAL INPUT
The digital input present on the instrument accepts contacts free of
voltage, the function carried out is defined by the parameter
“diF”
.
The parameter “diF” can be configured for the following functions:
= 0 , = 1, = 2, = -1, = -2
- Digital input not active
= 3
- External alarm signal with contact normally open: on closing
the input the alarm is activated and the instrument visualises
AL
and the measured temperature alternately on the display.
= -3
- External alarm signal with contact normally closed : similar to
“diF”=3 but with function logic reversed.
4.6 - FUNCTIONING OF KEY “U”
The U key function can be defined by the parameter
“USrb”
and
can be configured for the following functions:
= OFF
- The key U carries out no function.
= 1
- Pressing the key for at least 1 second, it is possible to switch
the instrument from the ON status to Stand-by status and vice
versa.
4.7 - PARAMETERS CONFIGURATION BY “KEY01”
The instrument is equipped with a connector that allows the
transfer from and toward the instrument of the functioning
parameters through the device
TECNOLOGIC KEY01
with
5 poles
connector.
This device it’s mainly useable for the serial programming of the
instruments which need to have the same parameters configuration
or to keep a copy of the programming of an instrument and allow its
rapid retransmission.
To use the device KEY01 it’s necessary that the device or
instrument are being supplied.
Instrument supplied and device not supplied
SUPPLY
Instrument supplied from the device
SUPPLY ADAPTER
12 VDC
AC SUPPLY
For additional info, please have a look at the KEY01 instruction
manual.
5 - PROGRAMMABLE PARAMETERS TABLE
Here below is a description of all the parameters available on the
instrument. Some of them may not be present, either due to the
fact they depend on the type of instrument or because they are
automatically disabled as unnecessary.
2.0
0.0 ÷ 30.0
°C/°F
Differential
HSEt
8
2.0
OFF ÷ 20.0
sec
Measurement filter
FiL
7
On
On - OFF
Decimal point
dP
6
°C
°C - °F
Unit of measurement
Unit
5
0.0
-30.0 ÷ 30.0
°C/°F
Probe Calibration
OFS
4
Pt10
Pt10 - Entc
Probe Type:
Pt10= Pt1000
Entc= NTC (PT-24C2)
SEnS
3
500.0
SPLL ÷ 932.0
Maximum Set Point
SPHL
2
-99.0
-99.9 ÷ SPHL
Minimum Set Point
SPLL
1
Note
Def.
Range
Description
Par.
TECNOLOGIC spa - TLZ 11
P
- OPERATING INSTRUCTIONS - Vr.01 - 09/05 - ISTR 06947 - PAG. 4
