Comelit 47RTS282E Série Manuel D'utilisation page 8

IST-47RTS282E
la. [ovvero che l'uscita in mA aumenti fino al valore indicato in colonna 4 e la centrale, cui è collegato il rilevatore, indichi circa il valore in-
dicato in colonna 5]. Terminata la "Verifica", chiudere la bombola e togliere il TC014. Attendere 3-5 minuti per tornare
in funzionamento normale.
1-Modello
47RTS282EA
100ppm Ammoniaca (NH
47RTS282EA-H
47RTS282EC-S
300ppm Monossido di carbonio(CO) in azoto
47RTS282EC-H
10ppm Biossido di zolfo (SO
47RTS282ES
50ppm Idrogeno solforato (H
47RTS282EH
47RTS282EHCN 10ppm Acido cianidrico (HCN) in azoto
100ppm Ossido d'azoto (NO) in azoto
47RTS282EN
30ppm Biossido d'azoto (NO
47RTS282EN2
47RTS282EHCL 10ppm Acido cloridrico (HCL) in azoto
10ppm Biossido d'azoto (NO
47RTS282ECL
EN
DESCRIPTION
The 47RTS282E series are stand-alone gas detectors able to detect toxic gases by employing an electrochemical
sensor calibrated to different gases and find their best application in centralized alarm systems for parking, labora-
tories, manufacturing industries and environments to be protected from possible leakage of gas.
The instruments comprise of a thermoplastic enclosure in which the electronic circuit and the terminals are mount-
ed and a downward facing cylindrical sensor housing with inside a "Replaceable Cartridge Sensor".
The 47RTS282E series have three alarm levels, with different set-up, depending on the models, as listed in
5÷11.The outputs are relays with tension free single pole contacts (SPST).The instrument has also a 4÷20mA linear
output (S) with F.S. of the detected gas, expressed in ppm (part per million). This output can be used to connect a re-
mote central unit and / or for Test and Calibration routine, code protected, by using the F1 and F2 keys, placed on the
front panel, on which there are 5 Led that indicate:
rd
3 red Led "ALARM 3":
nd
2 red Led "ALARM 2":
st
1 red Led "ALARM 1":
Green Led "ON":
Yellow Led "FAULT":
NOTES ON THE DETECTED GAS
The above Gas value is on compliance with EN60079-20-1.
47RTS282EA has a sensor that can detect Ammonia (NH
istic pungent smell, lighter than air, (its density as to air is 0.6). His TWA is 25ppm (Time-Weighted Average) and STEL is
35ppm (Short Term Exposure Limit). His LEL (Lower Explosivity Limit) is 15% v/v (volume). This gas is irritating to the eyes
and mucous membranes (respiratory and digestive tracts). Ammonias used in industrial refrigeration applications. It
is also used as fertilizers (either as its salts), as a component in paints, for the production of plastics and polymers,
such as solvent or as household cleaners.
47RTS282EA-H model is as previous, but it uses a sensor suitable for industry and polluted environments and
with presence of other toxic gases.
47RTS282EC-S has a sensor that can detect Carbon monoxide (CO) gas which is a poisonous, colourless,
odourless, and tasteless. CO is a little lighter than air (its density as to air is 0.97) and his LEL (Lower Explosive Limit) is
10.9%v/v (%volume). His TWA is 25 ppm (Time-Weighted Average) and STEL is 50 ppm (Short Term Exposure Limit).
CO is produced by incomplete burning of carbon-based fuels, including gas, oil, wood and coal. Carbon-based
fuels are safe to use. It is only when the fuel does not burn properly that excess CO is produced, which is poison-
ous. When CO enters the body, it prevents the blood from bringing oxygen to cells, tissues, and organs.
47RT282SEC-H model is as previous, but it uses a sensor suitable for industry and polluted environments and
with presence of other toxic gases.
47RTS282ES has a sensor that can detect Sulphur dioxide (SO
oxide) gas which is a toxic, colourless, with pungent odour, heavier than air (its density as to air is 2.25). His TWA (Time-
Weighted Average) is 2 ppm and STEL (Short Term Exposure Limit) is 5 ppm.
SO is a strong irritant to eyes and respiratory system. Inhalation may cause pulmonary edema and prolonged ex-
2
posure can lead to death and when it combines with water forms H
47RTS282EH has a sensor that can detect Hydrogen sulphide (H
is a toxic, flammable, colourless, with a characteristic odour of rotten eggs, heavier than air (its density as to air is
1.19). His TWA is 5ppm (Time-Weighted Average) and STEL is 10 ppm (Short Term Exposure Limit). His LEL (Lower Explosive
Limit) is 4% volume. The H
ready produces irritation to the eyes and throat, cough, fast breathing and training of fluid in the respiratory tract.
This gas, over 150 ppm, acts on the olfactory nerve, making it impossible for the perception of its odour, and higher
concentrations can cause unconsciousness within a few minutes and can lead to death.
47RTS282EHCN has a sensor that can detect Hydrogen cyanide (HCN) (synonymous with Hydrocyanic acid, Prussic ac-
id) gas which is a toxic, extremely poisonous gas, colourless, with has an almond-like odour, a little lighter than air
(its density as to air is 0.94). His TWA (Time-Weighted Average) is 4.7 ppm and STEL (Short Term Exposure Limit) is 10 ppm.
Comelit Group S.p.A. - Via Don Arrigoni 5 - 24020 Rovetta S. Lorenzo BG Italy
Istruzione / User's Manual / Manuel d'utilisation
2-Gas da utilizzare
) in azoto
3
)in azoto
2
S) in azoto
2
) in aria
2
) in aria
2
rd
3 relay activation
nd
2 relay activation
st
1 relay activation
normal working condition
the sensor should be faulty, disconnected, out of scale or expired.
S smell is perceived at concentrations above 0.2 ppm, to low levels (50÷100 ppm) al-
2
3-Flussomentro 4-TEST mA 5-Uscita in mA 6-Indicazione in ppm
0,3 l/min
90÷96 mV
1 l/min
0,3 l/min 190÷210 mV
0,3 l/min 118÷122 mV 11,7÷12,3 mA
0,3 l/min 117÷123 mV 11,7÷12,3 mA
0,3÷0,5 l/min 192÷208 mV 19,2÷20,8 mA
0,3 l/min 192÷208 mV 19,2÷20,8 mA
1 l/min 190÷210 mV
0,3÷0,5 l/min 192÷208 mV 19,2÷20,8 mA
1 l/min 192÷208 mV 19,2÷20,8 mA
) gas which is a toxic, colourless and with a character-
3
) (also Sulphurous anhydride, Sulphurous oxide, Sulphur
2
S (Hydrogen sulphide).
2
S) (synonymous with hydrogen sulphide) gas which
2
9,0÷9,6 mA 100 ppm (±5)
19÷21 mA 300 ppm (±20)
10.0 ppm (±0.5)
50
10.0 ppm (±1)
100 ppm (±5)
19÷21 mA 30
10
10.0 ppm (±0,5)
Tel. +39 0346 750 011 - Fax +39 0346 71436
Pag.8/20
ppm (±2)
ppm (±2)
ppm (±1)
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