Test And Calibration - Tecno Control TS220SF Série Manuel D'utilisation

IST-2220.SF01.01
sor". Consider that the aging of the sensor involves an increase in its sensitivity, therefore non periodic calibration
and replacement of the cartridge increases considerably the probability of false detections.
After a real exposure exceeding the sensor operating limits (10,000 ppm), the detector must be tested with the
sample gas, as explained in the paragraph: "CALIBRATION CHECK".
Periodical testing: for checking effective functioning of the detector, we advise to carry out working tests every 6-
12 months, with the specific Refrigerant Gas/Air mixture as explained on 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 nor under the floor.
Important: The semiconductor 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 life and performance of the sensor can be greatly reduced, in extreme conditions of hu-
midity, high temperatures, or polluted environments with high levels of organic vapours or flammable substances
(in particular solvents), or with very high concentrations of refrigerant gas.
Some substances cause a total loss or permanent reduction of sensitivity. Avoid contacts of the sensor with va-
pours of Silicone compounds (present in paints and sealants). High concentrations of corrosive substances such as
Hydrogen sulphide, Sulfur oxides, Chlorine and Hydrochloric acid, can destroy the sensor. Even excessive vibra-
tion or mechanical shock can damage the sensor.

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 Central Unit.
Operation Check, Zero Adjust 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 automatically erased.
Calibration Kit, Sample Gas Bottles (for Calibration Check and Calibration) please, only using a mixture refriger-
ant gas in Air (20.9% Oxygen). Semiconductor sensors cannot work without Oxygen. It is possible to use ei-
ther the disposable one litre cylinders with adjust valve or the high pressure ones with reduction gear. Is also nec-
essary the Tecnocontrol Calibration Kit mod. TC014 (made of stainless steel). To ensure that the gas reaches the
sensor, use stainless steel reducers, Teflon tubes or other compatible materials, which do not disperse the gas.
Model
TS220S F1-H 500 ppm of R134a refrigerant gas
TS220S F2-H 500 ppm of R404a refrigerant gas
TS220S F3-H 500 ppm of R407c refrigerant gas
TS220S F4-H 500 ppm of R410a refrigerant gas e in air (about 20,9% Oxygen)
TS220S F5-H 500 ppm of R507 refrigerant gas
"INSTRUMENT OPERATION CHECK" (Check Code: F2, F2, F1, F1): this function allows to effect a functional test
of the device. After having put the system in safety and inserted the "Code Test", all Led are switched off. Then they
will switch on in sequence, the Led, from the yellow up to the red. At the end all the Leds will remain lighted for
around 5 seconds, then the instrument returns at the conditions of normal operation. It is advisable to perform this
operation every 6-12 months according to the use.
Note: The operation is not executable if the Red LED is on or if the mA output is more than 12mA (500ppm).
"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 refrigerant gas or other pollutants), and after at least 48 hours that the detector
is powered (even if the detector is turned off for a few hours). After having inserted the "Zero Code", as a con-
firmation of the operation carried out there will be 1 flash of the Red Led and the output will become 4,0mA. We
suggest performing this operation, only if required, after the installation or after the change of the cartridge and eve-
ry 6-12 months based on the environmental conditions.
Note: This operation is not executable if mA output is more than 7,2mA (200ppm) you should perform the "Calibra-
tion" or replacing the "Cartridge".
"CALIBRATION CHECK" (no Code required): this operation allow to effect a real functional test of the instrument
with gas after the "Calibration" routine, or after the installation (after at least 48 hours that the detector is pow-
ered). The "Calibration Check" routine should be done during the periodic maintenances because this is the only
method to verify the instrument real functioning.
The "Calibration Check" should be done using sample gas bottles with the gas mixture of refrigerant according to
the model. Insert the TC014 over the sensor holder, adjust the sample gas bottle valve as the flow meter indicates
around 0.2 l/mins (see Fig.3). Wait around 3 minutes, then verify with a voltmeter connected to the Test-Point
Fig.2), the value reaches a value between 90 and 150mV, [corresponding to 12mA (±3) output, and the central unit
should be display about 500ppm (±200)]. If the value result is more different, it is necessary to recalibrate the sen-
sor (see "Calibration"). Then close the gas bottle and remove TC014, after mA output, will slowly decrease up to 4mA.
"CALIBRATION" (Calibration Code: F2, F2, F2, F1, F2, F1): this function allows completely recalibrate the sensor.
Warning: to guarantee that no errors of elaboration happen, the rare possibility exists that during the Calibration
the yellow LED switch off every 8 seconds, in this case interrupt the procedure, switch off and witch on the instru-
TECNOCONTROL S.r.l. Via Miglioli 47 SEGRATE ( MI )
Istruzione / User's Manual / Manuel d'utilisation
Sample Gas Bottle
in air (about 20,9% Oxygen)
in air (about 20,9% Oxygen)
in air (about 20,9% Oxygen)
in air (about 20,9% Oxygen)
Fornibile a richiesta
Fornibile a richiesta
Fornibile a richiesta
Fornibile a richiesta
Fornibile a richiesta
Tel. +39 02 26922890 - Fax +39 02 2133734
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NOTE
(see