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ページを印刷するREMOTE SENSORS CONNECTION
The Beta gas detector has, in addition, 2 terminals "REMOTE" active
when closed, for connecting the following remote detectors (Fig.6):
- for smoke: serie RF.
- for "CO" gas: serie Beta mod. 760 CO; SE320EC e mod. 760/10 CO / SE340EC.
- for METHANE gas: serie Beta mod. 756/M; SE396KM or serie GAMMA mod.
656C/M; SE296KM or GAMMA mod. 652-O/M ; SE230KM/SE233KM.
- for LPG gas: serie Beta mod. 756/G; SE396KG or serie GAMMA mod. 656C/G;
SE296KG or GAMMA mod. 652-O/G ; SE230KG/SE233KG.
If the remote sensors are not connected to terminals "REMOTE", these
must not be modified, and therefore kept disconnected at all times.
serie
Beta
mod. 760 CO / SE320EC
Beta
serie
mod. 760/10 CO / SE340EC
+
-
REMOTE
Fig.6
If the remote contact remains closed for at least 20 seconds, the Beta
gas detector goes into alarm by sounding intermittently, without flash-
ing the RED LED.
ELECTRO-VALVES CONNECTION
N.O. POSITIONING FOR NORMALLY OPENED VALVES
The Beta gas detector has inside a JUMPER (J4) that permits to se-
lect the type of electro-valve to connect that can be Normally Opened
(N.O.) type or Normally Closed (N.C.) type.
We remind that the valve should be installed on the gas pipes
outside the room under control, since protection is useless if a
gas leak occurs at the beginning of the gas pipe.
Positioning JUMPER J4.
For normally opened electric-valves
Application example with normally opened electric valve (N.O.)
Beta 760 CO
230Vac-50/60Hz
Connection of two detectors with a single electric valve is shown in
the diagrams below. It is possible to connect more than two detec-
tors, repeating the same connections.
Ex. Connection with Normally Opened electric valve (230Vac) and
a second Beta 760CO.
Beta 760 CO
Normally
230Vac-50/60Hz
opened
valve 230Vac
Ex. Connection with Normally Opened electric valve (12Vdc) and a
remote gas detection Beta 756.
Beta 760 CO
Normally
opened
12Vdc
valve 12Vdc
Beta
serie
:
mod.760 CO; SE320EC
mod.760/10 CO; SE340EC
mod.756; SE396K
mod.752; SE330/333K
NC COM
NO
serie GAMMA:
mod. 656C; SE296K
mod. 652-O; SE230/233
Normally opened
electric valve
Beta 760 CO
R
R
5
6
230Vac-50/60Hz
Beta 756
12Vdc
5
N.C. POSITIONING FOR NORMALLY CLOSE VALVES
Position JUMPER J4.
For normally closed electric-valves or for the con-
temporaneously check of both electrovalve and an
external electrical charge.
Application example with normally closed electric valve (N.C.)
Beta 760 CO
230Vac-50/60Hz
ATTENTION: If there is a temporary loss of power the N.C. valve
closes automatically and will need to be reset manually when
power is restored.
Connection of two detectors with a single electric valve is shown in
the diagrams below. It is possible to connect more than two detec-
tors, repeating the same connections.
Ex. Connection with Normally Closed electric valve (230Vac) and a
second Beta 760CO.
Beta 760 CO
Normally
230Vac-50/60Hz
Closed
electric valve
Ex. Connection with Normally Closed electric valve (12Vdc) and a
remote gas detection Beta 756.
Beta 760 CO
Normally
12vdc
Closed
electric valve
RF050 SMOKE DETECTOR CONNECTION
Normally closed
electric valve
Beta 760 CO
R
R
5
6
230Vac-50/60Hz
Beta 756
12vdc
6