content of gas (propane or butane), in the
monitored area, exceeds
5 - 15%
of the lower
explosive level
(L.E.L).
The BS-695
detectors are activated when the
content of gas (methane), in the monitored
area, exceeds
5 - 15%
of the lower explosive
level
(L.E.L).
The same detectors can also be
used as an alcohol vapor detector.
They are connected and operate with the mains
power supply voltage of
230V AC,
as shown in
figure 2.
When the detector is activated, an internal
sounder(buzzer) is sounded and the internal
relay is activated.
The activation stops when
you push the test button or the gas content
drops below
5-15%
of the
L.E.L.
The electro-valve resets manually.
Indication LEDs and operation
The green LED shows the presence of the
mains power supply.
When first installed, the
green LED blinks for 20 seconds until the
sensor compensates to its surroundings.
When the red LED is lit then the unit is in alarm
mode
.
When the yellow LED is lit the unit has an fault.
A blinking red LED means that there was an
alarm condition but it has now passed. The
same applies for a blinking yellow LED and the
fault condition.
When the test button is pressed, the system is
tested and restarted. During the test the internal
circuits are checked, the relay is activated, and
the internal buzzer sounds.
Also, during the test
all alarm and fault indications are reset.
After the test and if an electro-valve was
connected to the unit, a manual reset of the
electro-valve must be done.
Electro valve connections
The gas supply is automatically turn OFF in the
event of an alarm or fault condition. The electro-
valve can only be reset manually by the user, by
pressing on point
“Α”
as show in figure 1.
Depending on the type of electro-valve used,
the corresponding connection diagram is
shown in figure 5.
Care must be taken to
position the link of
JMP1
in the correct position
.
It is suggested that this unit is used in
cooperation with
Οlympia Electronics
Electro-
valves type
BS-684 (12V N.O.)
Or
BS-682 (
230V AC N.O.).
The connection cable, when
you use BS-684, must be at least 2x2.5mm
diameter and no more than 4m length.
Figure 4 shows the connection of multiple
detectors in a network connection, for covering
a larger area and using one
12
V DC NO
electro-valve.
Attention!!
The position link of JMP1 set the
relay status.
If a link is set on A ( figure 4 ) the relay is
energized (NO) in normal condition and on
alarm or fault condition the relay is not
energized.
The opposite occurs if a link is set on B.
ATTENTION!!
The devices must not be tested
using gas filled lighters because the sensor will
be destroyed.
Page 2 from
4
N.C.
Α
Figure 1.
Diagram with manual reset
normally closed and normally open electro-valve
There is a screw behind the plastic cover
Remove the plastic cover
using a flat blade screw driver
921695000
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