TELEDYNE OLDHAM SIMTRONICS CTX 300, Руководство пользователя

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CTX 300
ANALOGIC GAS DETECTOR
USER MANUAL
NP300GB
Rev.O.0
5
3 Installation and connection
3.1 Installing the detectors
3.1.1 Layout
While the measuring sensor is always located on the underside of the detector, several factors
determine where the detector should be located:
•
If the gas being measured is lighter than the air, place the detector near the ceiling.
•
If the gas is heavier than the air (CO
2
and Freons, for example) place the detector close
to the floor.
•
Near offtake points.
•
Generally, in locations where gas may accumulate, taking into consideration both:
-
The effects of temperature;
-
The outside winds direction.
3.1.2 Determining the best sensor location
Factors to consider when determining the best placement for the detector are:
•
Potential sources for vapor and gas emissions.
•
Characteristics of gases and vapors (density).
•
Air circulation:
-
Inside: mechanical or natural ventilation.
-
Outside: wind direction and velocity.
•
Effects of temperature.
•
Local constraints (air flow, water splash, etc.).
Detectors should always be located in an easily accessible location for maintenance purposes.
Special accessories may be necessary to protect the equipment against any liquid projectiles,
dust, direct sunlight or low temperatures in the area.