(1) the combustible gas controller installation specification
A. combustible gas controller should be installed in the control room and other places of the explosion, it is forbidden to install in the explosion-proof.
B. no matter what kind of combustible gas controller installation, shall ensure that fixation, avoid vibration, dust and water, the environment should comply with the instrument's specifications.
C. combustible gas controller should be relatively clean power and to avoid large electrical equipment using the power the same way.
D. combustible gas controller should be ground or earth grounding power plug.
E. combustible gas controller shell it is forbidden to destroy, otherwise it will affect the shielding effect.
(2) the combustible gas detection sensor installation specification:
A. combustible gas detection probe study should choose valve, the pipeline interface, near the outlet or easy to leak, within the range of 1 meter as near as possible, but do not affect other equipment operation, avoid high temperature and high humidity environment at the same time.
B. combustible gas detection probe used for large area of gas detection can be used when 10 ~ 12 square metre a probe to decorate, also can achieve detection alarm.
C. combustible gas detection sensor installation method can use lifting the roof, walls or pipe installation, shall ensure that installation is firm and reliable, also should consider to facilitate maintenance and calibration.
D. combustible gas detection sensor installation height: hydrogen, the proportion is less than the air gas such as natural gas, city gas, use 1 m from the roof installation;
Detect the specific gravity is greater than the air gas such as liquefied petroleum gas, by 1.5 to 2 meters from ground installation.
E. the combustible gas detection sensor wiring should adopt three core shielded cable, single line diameter greater than 1 mm square, wiring shield must be grounded.
F. combustible gas detection probe field line should wear tube, pipe used shall conform to the requirements of the fire, the pipe should be connected to the probe and to meet the requirements of fire control.
G. combustible gas detection probe when installation should be fixed sensor downwards.
H. combustible gas detection probes should be under the condition of power wiring, determine the correct wiring after electricity;
Should be no gas leakage at the scene of the certain case, open the debug probe.
I. combustible gas detection sensor should be calibrated once a year at least, in order to ensure accuracy.
Use stationary probe please notice
A gas detection probe study should choose valve, the pipeline interface, near the outlet or easy to leak, within the range of 1 meter as near as possible, but do not affect other equipment operation, avoid high temperature and high humidity environment at the same time, to avoid external influence, such as splashing water, oil, and the possibility of mechanical damage.
B gas detection sensor installation method can use lifting the roof, walls or pipe installation, shall ensure that installation is firm and reliable, also should consider to facilitate maintenance and calibration.
C gas detection sensor wiring should use three core shielded cable, single line diameter greater than 1 mm square, wiring shield must be grounded.
D gas detection probe when installation should be sensor fixed down and lock nut should fully tightened, probe should be completely cover cover good, with screw, in order to achieve the explosion-proof requirements.
E gas detection probes should be under the condition of power wiring, determine the correct wiring after electricity;
Should be no gas leakage at the scene of the certain case, open the debug probe.
F the probe shall be installed in a large vibration and temperature also to stable position as soon as possible.
G gas detection sensor should be calibrated once a year at least, in order to ensure accuracy.
Probe against testing pure gas, it is forbidden to use lighter embalm try, try to probe for a concentration of combustible gas fume and premature failure.
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