Installation; Warning; Test And Calibration - Tecno Control TS293K Série Manuel D'utilisation

IST-2293.KM02.01/B
All LED activates (>24mA output signal): this happens when the "Cartridge Sensor" is not working or gas concentra-
tion is out of scale (higher than 25% LIE) If there are not any gas leaks and the condition is not change, please re-
place the unit and/or send it back to the supplier to repair.

INSTALLATION

The 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. 2 shows the instrument size. The unit must be positioned vertically with the sensor downwards.
Model TS293KG positioning: it should be fixed at 20-30 cm from the floor (the LPG gas is heavier than air).
Model TS293KM positioning: it should be fixed at 20-30 cm from the ceiling (the Methane gas is lighter than air).
Model TS293KI positioning: it should be fixed at 20-30 cm from the ceiling (the Hydrogen gas is lighter than air).
Model TS293KB positioning: it should be fixed at 30-40 cm cm from the floor (the Petrol gas is heavier than air).
Electrical Connection (see
in table 1. Normally use a tree wire shielded cable.
The terminals (+ - S), are polarized plug-in type, it is necessary to extract them to make the connection.
Note: Dip-Switch should be set with instrument powered off. Dip-Switch 1 settled ON activates ALARM
Red LED indication (see Table 2).
Important: Once installation is completed, power up the unit, wait about 20 to 30 minutes and then to adjust the
sensor to the environment, only if it is necessary, carry out the "Zero Adjust" (see 'Test and Calibration).
COMPATIBILITY WITH OTHER CENTRAL UNITS: In case of a central unit other then Tecnocontrol, please ver-
ify the max load resistor as shown in

WARNING

Average life: The sensitive element used in this detector has an excellent stability in time. In fresh air and in nor-
mal working condition the sensor's life is about 5 years from the date of installation. After this period the yellow LED
"FAULT" flashes every 4 seconds, is necessary replacing the "Cartridge Sensor".
Periodical testing: we advise to carry out working tests every 12 months. Operation Check, Zero Adjust, Calibra-
tion Check and Calibration with Gas/Air mixture as explained on page 4 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.
Important: The catalytic sensor operates only in presence of Oxygen. Do not use pure gases or a lighter
directly on the sensor since they could damage it irremediably.
Warning: Consider that in polluted environments, or with vapours of flammable substances (including solvents),
the lifetime of the sensor can be reduced. Some substances cause a permanent reduction of sensitivity; avoid con-
tacts of the sensor with vapours of Silicon (found in paints, sealants and greases), Tetraethyl lead and Phosphate
esters. Other substances cause a temporary loss of sensitivity; these "inhibitors" include Halogens, Hydrogen sul-
phide, Chlorine, Chlorinated hydrocarbons (Trichloroethylene or Carbon tetrachloride). After a short time in fresh
air, the sensor resumes its normal operation.

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.
Operation Check, Zero Adjust, Calibration Check and 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 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 automati-
cally erased.
Calibration Kit, Sample Gas Bottles (for Calibration Check and Calibration) please, only using a mixture
You can use either the disposable cylinder, Tecnocontrol mod. BO200, complete with adjust valve or the high
pressure ones with reduction gear. Is also necessary to use the calibration kit Tecnocontrol mod. TC011.
"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 Code", all LEDs are switched off. Then LEDs will switch on in se-
quence, from the yellow up to the red. At the end all the LEDs will remain lighted for around 5 seconds, and then
the instrument 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 red LED is already switched on.
"ZERO ADJUST" (Zero Code: F2, F1, F1, F2): this function is to adjust the Zero sensor and can be done in clean
air only (environment without the presence of gas or other pollutants). Consider that the TS293K has a sophisticated follower
of zero, that every hour will reset the sensor, if of course there is the presence of gas. If necessary, perform this
operation after installation or after changing the "Cartridge" or every 6-12 months depending on environmental con-
ditions. After entering the "Zero Code" as confirmation of the operation, there will be a flashing red LED and output
becomes 4.0 mA.
Note: This function is not working if mA output is more than 12mA (10% LEL) and/or red LED is already been
switched on. In this case, it will be necessary to recalibrate the unit and/or replacing the "Cartridge"
TECNOCONTROL S.r.l. Via Miglioli 47 SEGRATE ( MI )
Istruzione / User's Manual / Manuel d'utilisation
Fig.2): the maximum distance to install each detector from the Gas Central Unit is show
Fig. 4. We suggest using 24Vdc power supply.
20%LEL (0.88% volume) Methane in Air (20.9% Oxygen)
Tel: 02/26 92 28 90 Fax: 02/21 33 734
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