The GS-133 detector is used to indicate leaking of explosive gases (natural gas, methan, propane, butane). The detector detects two levels of gas concentration, responding with 2 different output reactions.
The mains-powered detector indicates a gas leakage optically, and acoustically.
Sensitivity GS-133
Methane
Propane
Iso-butane
First level
10 ± 3% LEL (0.44% vol)
18 ± 3% LEL (0.30% vol)
23 ± 3 % LEL (0.30% vol)
Second level
18 ± 3% LEL (0.80% vol)
30 ± 3% LEL (0.50% vol)
40 ± 3 % LEL (0.50% vol)
LEL = Lower Explosive Limit (100%) according to IEC 60079-20-1: for Methane is 4.4% volume concentration for propane 1.7% vol, for iso-butane 1.3% volume, calibrated in the production of iso-butane
Specifications GS-133
Mains
DC 12V ± 20%
Beep
94 db / 0.3 m
Relay Output
250V / 5 Amp - optional response to 1st or 2nd level
Output capacity
max.230 V / 5 A
Operational temperature
-10°C to +40°C
Storage temperature
-20°C to +50°C
Stabilization time
90 s
Response time
max. 20 s
Detection method
catalytic combustion
Housing
IP 30 (EN 60 529)
Equipment lifespan
min. 5 years
Designed to operate at normal atmospheric pressures
86 to 106 kPa
Meets
EN 50194-1, IEC 60079-29-1, IEC 50130-4, EN 55022, EN 60950-1
