IST-2136.IC01.01
Istruzione / User’s Manual / Manuel d’utilisation
Pag.6/10
TECNOCONTROL S.r.l. Via Miglioli 47 SEGRATE ( MI ) ITALY
Tel. +39 02 26922890 - Fax +39 02 2133734
Important
:
Once installation is completed, power up the unit, it is not necessary to make any adjustment. Wait
about 20 to 30 minutes and then, only if it is requested, carry out the
”Operation Check”
(
see “
Test”
).
WARNING
Average life
: The sensitive element used in this detector has an excellent stability in time, the sensor's life is more
than 5 years from the date of installation. After this period the yellow LED “
FAULT
” flashes every 3 seconds, this is
only a warning, the detector continues to operate normally, but then is necessary replace and / or send the detector
back to the supplier to replace the “
Sensor
” with a new one.
Periodical testing
: depending on the use, we advise to carry out working tests every 6÷12 months. As explained in
chapter “
Tests
”.
For five years it is not necessary to calibrate the sensor.
Note:
the detector is not able to detect gas leaks occurring outside the room where it is installed, neither inside
walls or under the floor.
Warning:
Consider that in polluted environments or with temperature, pressure or Humidity more than the declared
limits, the useful life of the sensor can be reduced.
TESTS
PAY ATTENTION
:
This procedure has to be made with extreme attention and by authorized and trained
people; because will activate the alarm devices connected to the outputs (relays and mA signal).
Operation Check and Calibration check with Gas
:
are different code protected functions. To access these func-
tions is necessary to insert the relevant “
Code
" through the keys F1 and F2. To have the key pressure recognized,
hold pressing it for around a second (
until the Green LED doesn't switch off for a moment
). Then the next key can be pressed.
In case of error all it takes is waiting around 10 seconds and the sequence is automatically erased.
Test Kit, Sample Gas Cylinders
(
only for Calibration Check
) please, only using a mixture:
Sample Gas Cylinder for SPAN Calibration
Tecnocontrol Code
1% Volume
Carbon dioxide (CO
2
)
in nitrogen
Available on request
Sample Gas Cylinder for ZERO Calibration
Pure Zero Air (less than 5 ppm CO
2
)
Available on request
You can use
disposable cylinder, complete with adjust valve
. It is also necessary to use
the Test kit
Tecno-
control model TC011 or TC014
.
“INSTRUMENT OPERATION CHECK” (
Check Code
: F2, F2, F1, F1)
:
this function allows to effect a functional
test of the equipment. After having inserted the "
Check C
ode
", all Led are switched off and all the relays are deac-
tivated. Then they will switch on in sequence, the Led, from the yellow up to the 3
rd
red. To the lighting of the vari-
ous Led it corresponds the activation of the relevant relays (
relay "FAULT" with the yellow Led, relay "ALARM1" with the 1
st
red
Led, relay "ALARM2" with the 2
nd
red Led, relay "ALARM3" with the 3
rd
red Led
). At the end all the Led will remain lighted for
around 5 seconds, then the detector returns at the conditions of normal operation. It is advisable to perform this
operation every 12 months according to the use.
Note
: this function is not working if the 1
st
and/or the 2
nd
and/or the 3
rd
red Led have already turned on.
“CALIBRATION CHECK WITH GAS” (
no Code required
)
:
using the gas mixture indicated above, this function is
used to control the correct response to the gas and can be made after the installation. But it should be done during
the periodic maintenances, to verify the effective functioning of the detector.
NOTE:
please use, the gas mixture as indicated above. Normally it is sufficient to perform the
Calibration check with
gas
, (
1%Volume CO
2
Cylinder in nitrogen
) but you can also carry out
Checking Zero
(
Pure Zero Air Cylinder
).
Insert the TC011/TC014 over the sensor holder, adjust the sample gas bottle valve as the flow meter indicates
around 0.3 l/mins (
see Fig.3
), wait for 3 minutes and check that the instrument activates Alarms as shown in chapter
“
Operational Description
”.
If the result is very different, contact our customer service.
Then close the gas bottle, re-
move TC011/TC014. The detector will slowly returns at the conditions of normal operation.
NOTE
: further to the above, If the mA output is also used,
insert the TC011/TC014 over the sensor holder,
adjust
the sample gas bottle valve as the flow meter indicates around 0.3 l/mins (
see Fig.3
), verify with a voltmeter con-
nected to the Test-Point “
TEST mV
” (
TP1 and TP2
),
(
see fig.2
) the value reach the
mV
value as shown in
Table 4 on col-
umn 6
[corresponding to mA output value (
±0.56 mA
) as indicated in
column 7
. T
he central unit should be display
about the value indicated in
column 8
]. If the result is very different, contact our customer service. Then, close the
gas bottle; move away the
TC011/TC014
. Then, the mA output will slowly decrease up to 4mA.
Example
if you have to verify a SE136 IC2 using a cylinder with Pure Zero Air, the mA output will be 4.0 mA (cor-
responding about to 40 mV measured on "
TESTmV
”). Then using a cylinder with 1%volume (= 10000 ppm) CO
2
in
nitrogen, the mA output will be approximately 12.0 mA (
±0.56mA
) (corresponding value from 114 to 126mV meas-
ured on "
TESTmV
”).
FR
DESCRIPTION
Les
SE136 IC2
sont des sondes de détection de CO
2
, avec capteur “
Infrarouge” (
NDIR – Nondispersive Infrared Sen-
sor
)
, utilisées dans les systèmes centralisés de détection de gaz destinés pour la première aux alarmes pour labo-
ratoires, industries alimentaires, caves vitivinicoles et brasseries et pour la seconde aux contrôles de la quantité
d’anhydride carbonique présente dans les serres. La sonde est constituée d’un boîtier contenant le circuit électro-
nique ainsi que les borniers de raccordement. Le capteur est à l'intérieur du porte capteur, dans la partie inférieure
du boîtier.
