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ST-700 |
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Gas alarm
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Features：
1 Gas alarm meets UL 1484 standard.
2 Built-in the high tech gas sensor, it has the high sensitivity, the high stability, and the high gas selectivity’s characteristic, may precise detect the gas concentration.
3 With the advanced high tech microprocessor and the wisdom control, processing the precise computation of the gas concentration and have much intelligent control.
4 Provide the test / silence button, besides internal self- diagnosis, under the stand-by status, may lightly press the test / silence button to test the alarm. This button also provides the specialist to test the system link when continuously presses the button for 8 seconds.
5 Provide the power switch button, it automatically turn on when inserts the power source, when continuously press the button for 1 second, it will turn off, and has the key tone. This button provides the specialist to use; usually this product should setting for the turn on condition.
6 Built-in the high efficiency wide-range Switching Power Supply, suitable to the universal voltage. |
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Selection guide： |
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Specifications： |
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Model
no. |
ST-700 |
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Model
name |
Gas
alarm |
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Target gas |
GAS
(LNG & LPG) |
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Detect mode |
Semiconductor type
or hot-wire |
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Threshold |
Meets
UL 1484 standard |
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Power
LED |
Blue |
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Alarm
LED |
Red
blinking per
half-second |
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Fault
LED |
Yellow blinking per
8 seconds |
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Warning sounds |
High/low tone,
repeat, 85dB/1M |
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Trouble sound |
Beep
per 24 seconds |
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External warning |
Sounds & Power LED:
Twice every
half-second, stops
half-second, repeat
continuous. |
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Working temperature |
0℃~
50℃ |
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Working humidity |
95%RH
max. |
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Power
supply |
AC100~240V, 50~60Hz;
or DC12V, 500mA
external (Refer to
the
Selection guide) |
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Power
consumption |
Stand-by: around 1W；
Warning: 1~6W
(According to the
link) |
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Dimensions |
H120mm×W70mm×D35mm
(with base)
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Weight |
130g
(AC, without plug) ;
110g (DC) |
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Signal link, Valve
control & other
optional functions:
Refer to the
Selection guide |
Remark: LNG
(Liquefied Natural Gas), LPG
(Liquefied Petroleum Gas)
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Concerning
the gas
alarm’s
threshold,
UL 1484
(Residential
Gas
Detectors)
standard:
The gas
concentration
has not
reached
the
1/100
LEL must
not
warning;
the gas
concentration
between
1/100~1/4
LEL must
warning.
The unit
setting
at 1/10
LEL,
meets UL
1484
standard. |
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The matches
valves：
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Solenoid valve
(Model: V15 or V20)
During normal status,
the valve is no power
consumption, energy
saving and high safety.
The pipeline bursts,
boils the overflow,
blows out ... and so on
cause which the gas
leaks, gas alarm output
the 12V pulse signal to
the valve to interrupt
gas.
The pull rod has the
dustproof and waterproof
cover. Meet IP-54.
Could use the manual
control to opens or
closes the valve.
Suits to the pipe size:
1/2" or 3/4" (V15 for
1/2”, V20 for 3/4”)
Working pressure:
500mBAR
Must conjunction the gas
alarm or related
equipment that provide
the signal.
Corresponding alarm
series: ST-700AE,
ST-710AE, and
ST-720AE…(Refer to the
Selection
guide)
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Mechanical valve
(Model: MV-20N)
During normal status,
the valve is no power
consumption. Suit for
any working pressure.
When the gas
concentration achieved
the threshold, the alarm
provides DC12V to the
mechanical valve,
automatically turns off
the gas, guarantees the
security.
With manual shut-off and
reset button.
Directly installs on the
ball valve. Unnecessary
to cut off the gas
pipeline, installs
conveniently.
The substitution product
of the solenoid valve,
must conjunction the gas
alarm or related
equipment that provide
the signal.
Corresponding alarm
series: ST-700AM,
ST-710AM, and ST-720AM…
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For
single station use：If
the supply cord is
damaged, it must be
replaced by the
manufacturer, its
service agent or
similarly qualified
persons in order to
avoid a hazard. |
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