Installation; Important Warning; Test And Calibration - Tecno Control TS282IF Manuel D'utilisation

IST-2282.IF01.01
Faults: the Yellow LED (FAULT) illuminates and the "S" output falls down to 0mA. (The faults are listed below).
Yellow LED illuminates each 3 seconds (with green LED activate): this happens when the Infrared Sensor has over-
come its period of life (about 5 years) and its correct operation is not longer guaranteed. The detector keeps on op-
erating normally but it is necessary, as soon as possible,
Sensor.
Yellow LED activate, green LED off (0mA output signal): this signal different kind of faults. 1) The Dip Switch set
up is wrong, please verify
corrected). Please connecting and disconnecting the device. If the condition does not change, please replace the
unit and/or send it back to the supplier to repair.
Yellow and green LED activates (0mA output signal): this happens when the Infrared Sensor is not working. First try
to disconnect and connect the unit. If the condition is not change, please replace the unit and/or send it back to the
supplier to repair.

INSTALLATION

The gas detector must be accurately installed and testing according to the national dispositions in force on the
safety of the plants and installation of electric devices in areas with danger of explosion.
Mounting: The Fig. 1 shows the instrument size. The detector must be positioned vertically with the sensor down-
wards. Avoid obstacles that impede the view of the detector or the diffusion of air around the sensor. Consider that
the air movements can affect the gas detection. Avoid mounting in corners, near doors or windows or in the direct
flow of air vents or ventilation systems. The detector should be installed indoors, it is not suitable for outdoor use.
Its degree of protection is IP40.
WARNING: check that the detector is accurately fixed and that it is not stressed by vibrations, which may cause
detection errors and / or irreparably damage the sensor.
TS282IF positioning: Consider that halocarbons are gas heavier than air. Usually it should be fixed at 20-30cm
from the floor. Please, carefully evaluate the condition of the environment in order to have the best detection.
- If the detector is placed in refrigerated environments, place it in the area of return of the flow of air from the
environment towards the recirculation system / air conditioning; but not in the direct flow.
- If the detector is positioned in the compressor rooms, place it close to them in proximity of the suction grilles /
recirculation of air; but not in the direct flow.
- Consider that the main causes of gas leaks in an air conditioning system are valves, fittings, flanges and con-
nections. Avoid placing the detector too close to the pressure parts of the system because a gas leak may not
be accurately detected (if the gas, leaking, has too high a flow, may not be detected by the sensor).
Electrical Connection (see
in table 1. Normally use a tree wire shielded cable. The shield must be connected to the ground by the side of the
Central Unit. The opening and the electrical connection must always be made to the detector without power.
The terminals (+ - S), are polarized and plug-in type, it is necessary to extract them to make the connection.
NOTE: With the Dip-Switches the Alarm Red Led activation is determined. Dip-switch should be set with
instrument powered off. Dip-switch 1 settled ON activates ALARM LED indication
Important: Once installation is completed, power up the detector, wait at least 4 hours (continuously powered)
and then, only if the output signal, is different from 4mA, to adjust the sensor to the environment conditions, per-
form the "Zero Adjust"
COMPATIBILITY WITH OTHER CONTROL UNITS: In case of a central unit other than Tecnocontrol, please veri-
fy the max load resistor as shown in
We accept no responsibility for any malfunction, failure or damage caused by products that are not com-
patible or not of our production.
WARNING
The sensor average life
this period the yellow LED "FAULT" flashes every 3 seconds,
replace the Infrared Sensor.
IMPORTANT WARNING: The NDIR sensor, also works with oxygen deficiency, and will not be damaged, at
very high concentrations of refrigerant gases. The max value measured by the sensor is 120% f.s. (23.2mA)
and for safety, it is recommended to configure the control unit with the highest alarm level (relay) latched.
Periodical testing: depending on the use, we advise to carry out working tests every 6÷12 months. As explained in
chapter Tests and Calibration.
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 and pressure more than the declared limits,
the useful life of the sensor can be reduced.

TEST and CALIBRATION

PAY ATTENTION: This procedure has to be made with extreme attention and by authorized and trained people;
because starting this procedure it will increase mA Output causing the activation of connected alarm devices to the
gas Control Unit.
Operation Check, ZERO Calibration: are different code protected functions. To access these functions is necessary
to insert the relevant "Code" through the keys F1 and F2. To have the key pressure recognized, hold pressing it for
TECNOCONTROL S.r.l. Via Miglioli 47 SEGRATE ( MI ) ITALY
Istruzione / User's Manual / Manuel d'utilisation
(see Table 2). 2) The Infrared Sensor is not working, (fault sensor, no communication or un-
Fig.2): the maximum distance to install each detector from the Gas Central Unit is show
(see Test and Calibration).
Fig. 4. We suggest using 24VDC power supply.
is more than 5 years (if used within its operating limits)
send the detector to the supplier, to replace the
from the date of installation. After
it is necessary to send the detector to the supplier to
Tel. +39 02 26922890 - Fax +39 02 2133734
Pag.5/9
Infrared
(see Table 2).