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Istruzione / User’s Manual / Manuel d’utilisation

 IST-2138.KM01.01/B 

 

 

TECNOCONTROL S.r.l. Via Miglioli 97 SEGRATE ( MI )  Tel: 02/26 92 28 90   Fax: 02/21 33 734

 

 

verifica senza toccare i trimmer e nel caso i 
valori non siano quelli richiesti contattare il 
nostro laboratorio. 
Per la regolazione del trimmer è neces-
sario utilizzare un cacciavite a taglio di 
dimensione adeguata 

Aprire

 il coperchio della custodia. 

Regolazione dell’ALLARME 1

”. Per 

verificare e/o tarare lo strumento va uti-
lizzata la bombola con la stessa miscela 
Gas/aria al 10%LIE con cui è stato tara-
to il rivelatore. Collegare la bombola al 
portagomma del Flussimetro (Fig.3), far 
affluire il gas a circa 0,15÷0,3 l/min, 
attendere circa 3 minuti e verificare che 
si illumini il Led Rosso “ALARM1”. Se 
così   non fosse ruotare lentamente il 
Trimmer P2 fino all’accensione del Led. 

Regolazione dell’ALLARME 2

”. utiliz-

zando la bombola con la stessa miscela 
Gas/aria al 20%LIE per cui è stato tarato 
il rivelatore, collegare la bombola al por-
tagomma del Flussimetro (Fig.4), far 
affluire il gas a circa 0,15÷0,3 l/min, at-
tendere circa 3 minuti e verificare che si 
illumini il Led Rosso “ALARM2”. Se così  
non fosse ruotare lentamente il Trimmer 
P1 fino all’accensione del Led “ALARM 
2”. (Fig.4). 

operating on the trimmers, and in case 
the values are not the required ones 
please apply to our Laboratory. 
Employ a right sized single slot screw-
driver to operate on the trimmer. 

Remove

 the sensor's cover. 

ALARM 1 calibration

”. To verify 

or/and calibrate the instrument use a 
sample bottle with the same 10%LEL 
specific gas/air mixture which had been 
used to calibrate the unit. Connect the 
sample gas bottle (Fig.3) to the flow-
meter, set the flowmeter on a 0,15÷0,3 
l/min flow rate, wait for 3 minutes and 
verify the red LED “ALARM 1” illumi-
nates. If necessary slowly turn the P2 
potentiometer as long as the red LED 
“ALARM1” illuminates. 

ALARM 2 calibration

”. Use a sample 

gas bottle with the same 20%LEL spe-
cific gas/air mixture which had been 
used to calibrate the instrument. Con-
nect the sample gas bottle (Fig.4) to the 
flowmeter, set the flowmeter on a 
0,15÷0,3 l/min flow rate, wait for 3 min-
utes and verify the red LED “ALARM 2” 
illuminates. If necessary slowly turn the 
P1 potentiometer as long as the red 
LED “ALARM2” illuminates (See fig.4). 

où les valeurs ne sont pas correctes, veuil-
lez prendre contact avec notre Laboratoire. 
Pour le réglage du potentiomètre il est 
nécessaire d’utiliser un tournevis de di-
mension adaptée. 

Ouvrir 

le couvercle du boîtier. 

“Réglage d’ALARM 1”.

 Pour l'étalon-

nage utiliser une bouteille avec le mé-
lange spécifique gaz 10%LIE/air utilisé 
pour la calibration de l’appareil. Raccor-
der la bouteille au débimètre (Fig 3) faire 
débiter le gaz à environ 0,15-0,3 l/min, 
attendre 3 minutes et vérifier que la LED 
rouge “ALARM 1” s’illumine. Si nécés-
saire, régler le trimmer P2 jusqu’à 
l’allumage de la LED. 

“Réglage d’ALARM 2”.

 Pour l'étalon-

nage utiliser une bouteille avec le mé-
lange spécifique gaz 20%LIE/air utilisé 
pour la calibration de l’appareil. Raccor-
der la bouteille au débimètre (Fig 4) 
faire débiter le gaz à environ 0,15-0,3 
l/min, attendre 3 minutes et vérifier 
que la LED rouge “ALARM 2” 
s’illumine. Si nécéssaire, régler le po-
tentiomètre P1 jusqu’à l’allumage de la 
LED (Fig.4). 

 

Fig.1 

Schema di collegamento

Wiring diagram
Schéma de raccordement

+

-

C

NC NA

C

NC NA

12-24Vdc

-

+

ALARM 2

ALARM 1

7

8

3

2

1

6

5

4

 

Fig. 2

 

Dimensioni

Outline Dimensions / Dimensions

 

Fig.3 

Tester di calibrazione

Calibration Tester

Kit de Calibration

0,3L/min

EExd

D

 

 

Tabella 1 / 

Table 1

 / 

Tableau 1

 

GAS / GAZ

 

LIE / LEL 

%v/v 

ALARM 1 

%v/v 

=10%LIE/LEL 

ALARM 2 

%v/v 

=20%LIE/LEL 

1. 

Metano   

Methane / Méthane

 

0,5

 

1

 

2. Butano   

Butane / Butane

 

1,5 

0,15 

0,3 

3. Propano   

Propane / Propane

 

0,2 

0,4 

4. Idrogeno   

Hydrogen / Hydrogène

 

0,4 

0,8 

5. Benzina   

Petrol / 

Essence

 

1,4 

0,14 

0,28 

 
 

Fig.4 

Verifica

 / 

Test

 / 

Vérification

1   2    3    4    5    6    7   8

P2 

“ALARM 1

B

A
C

JUMPER  in posizione A-C relè con ritardo

in posizione C-B relè senza ritardo

Relay without delay: JUMPER should be in A-C position.
Relay with delay: JUMPER should be in C-B position.
CAVALIER en position A-C relais avec retard

en position C-B relais sans retard

P1 

“ALARM 2

 

Summary of Contents for SE138K

Page 1: ...empo è in grado di rilevare il gas ma raggiunge le condizioni di stabilità ot timali dopo circa 48 ore di funziona mento continuo DESCRIPTION Gas Detectors series SE138K allow explosive gas measurement They employ a catalytic sensor specifically calibrated to different types of gases The detector has two alarm levels set to 10 and 20 LEL The sealed re lays are normally activated with ten sion free...

Page 2: ...The detectors must be accurately in stalled according to all the national dis positions in force on the safety of the plants and installation of electric devices in areas with danger of explosion Positioning The SE138K must be posi tioned vertically with the sensor down wards Moreover the detector should be installedat20 30cmbelowtheceilingifthe gas to be detected is lighter than air ex Methane bu...

Page 3: ... mediabily Notes on the Models SE138KG LPG SE138KG is calibrated to detect LPG whichisagasheavierthanairandconsists of a mixture of 20 30 Propane C3H8 and 80 70 Butane C4H10 Propane density as to air is 1 56 while Butane is 2 The LEL Lower Explosivity Limit is 2 v v forPropaneand1 5 v vforButane Standard calibration to LPG is carried out withButanegas SE138KM Methane CH4 SE138KM is calibrated to d...

Page 4: ...ure which had been used to calibrate the instrument Con nect the sample gas bottle Fig 4 to the flowmeter set the flowmeter on a 0 15 0 3 l min flow rate wait for 3 min utes and verify the red LED ALARM 2 illuminates If necessary slowly turn the P1 potentiometer as long as the red LED ALARM2 illuminates See fig 4 où les valeurs ne sont pas correctes veuil lezprendrecontactavecnotreLaboratoire Pour...

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