NEGATIVE LOGIC
(SE330K)
In this case, the coil of the relay is kept deactivated (Fig. 4).
It is perfect for
N.O. (normally open) electric valves (Fig. 5) or N.C. (normally
closed) electric valves (Fig. 6).
In the event of an alarm, contacts 8 and 9 remain closed until the alarm
stops.
Fig.5 - Application example with normally open electric valve
Fig.6 - Application example with normally closed electric valve
ELETTRICAL CONNECTION WITH SEVERAL DETECTORS
Connection of two detectors with a single electric valve is shown in the diagrams below.
It is possible to connect more than two detectors, repeating the same connections.
Connection with Normally Open manual reset electric valve (with relay normally deacti-
vated) and a second
SE330K detector.
Connection with
12Vdc Normally Open manual reset electric valve (with relay normally
deactivated) and a second
SE330K detector.
4
Fig. 3 - Example of connection of a remote sensor.
The
Beta
SE396K detector is not IMQ certified but complies fully with standard
IEC UNI EN 50194-1:2009.
NEGATIVE LOGIC - POSITIVE LOGIC
POSITIVE LOGIC (SE333K)
In this case, the coil of the relay is always live (Fig. 7) to ensure the inherent
safety of the relay.
It is perfect for N.C. (normally closed) electric valves (Fig. 8).
In the event of an alarm, contacts 7 and 8 remain closed until thealarm
stops.
Fig.8
ATTENTION: If there is a temporary loss of power during operation with
positive logic, the N.C. valve closes automatically and will need to be
reset manually when power is restored.
ELETTRICAL CONNECTION WITH SEVERAL DETECTORS
Connection of two detectors with a single electric valve is shown in the diagrams below.
It is possible to connect more than two detectors, repeating the same connections.
Connection with Normally Closed manual reset electric valve (with relay normally acti-
vated) and a second
SE333K detector.
Connection with 12 Vdc Normally Closed manual reset electric valve (with relay nor-
mally activated) and a second
SE333K detector.
The
Beta
SE330K and SE333K gas detector can control an electric valve us-
ing two different logics:
1 – NEGATIVE LOGIC (SE330K)
2 – POSITIVE LOGIC (SE333K)
The
J2 JUMPER allows you to select the one required.
N.B. The J2 JUMPER is set by default to NEGATIVE LOGIC (SE330K).
NO
7
C
8
NC
9
J2 JUMPER IN
“POSITIVE LOGIC”
POSITION
SE330K
SE396K
230Vac-50/60Hz
N.O manual
reset valve
230Vac-50/60Hz
Fig.7
N.C. GAS EV
12Vdc
SE333K
SE333K
12Vdc
12Vdc
In the case of the
Beta
SE330K and SE333K models, before carrying out
the operation test, open the cover under the three LED lights (Fig. 9) with a
flatheaded screwdriver
Fig.9
When this is done, it is possible to test operation of the instrument by pressing
and holding the little TEST button on the Sensor module (Fig. 10) of the
Beta
SE330K and SE333K control unit for at least 2 seconds, or the button on the
card of the
Beta
SE396K remote detector, if connected, for at least 30 seconds.
All the LEDs turn on and the buzzer and relay output are activated for 5 seconds.
Fig.10
You will then need to re-engage the electric valve connected to the output of
the gas detector (if present).
OPERATION TEST
Fig.4
NC
7
C
8
NO
9
J2 JUMPER in
NEGATIVE LOGIC
position
230Vac-50/60Hz
EV
Normally open
SE330K
NO
230Vac-50/60Hz
EV
Normally close
SE330K
NO
3
4
SE330K
230Vac-50/60Hz
N.O. GAS EV
230Vac
230Vac-50/60Hz
SE330K
NO
NO
SE330K
12Vdc
N.O. GAS EV
12Vdc
12Vdc
SE330K
NO
NO
NO
NO
230Vac-50/60Hz
EV
Normally close
SE333K
NO
230Vac-50/60Hz
N.C. GAS EV
230Vac
SE333K
SE333K
230Vac-50/60Hz
NO
NO
NO
NO
