PCME QAL 181 X, Руководство пользователя

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- PCME QAL 181 MANUAL: 14 -
3 SENSOR INSTALLATION
3.1 Safety
DANGER FROM PROCESS
It is possible that the sensors are to be installed in ducting containing
process particulate that is a hazard to health. This may take one or more of
the following forms:
•
Particulate which is inflammable or explosive
•
Particulate which is toxic or in some other way a hazard to health
•
Particulate contained within high temperature gas
Unless the process conditions are known to be entirely safe, suitable
precautions such as the use of breathing apparatus or duct
purging/detoxifying must be employed before any entry is made into the
duct for installation or maintenance purposes. If in doubt, consult the local
Safety Officer and/or local Safety procedures.
Probe Damage
Take care when handling the sensor to avoid damaging the probe. Probe
damage may result in inaccurate measurements.
Supply Voltage
The sensor operates at 24V DC supplied from the Control Unit.
3.2 Location Requirements
•
Mount in the longest, straightest, unrestricted duct available.
•
Avoid excessive vibration.
•
Don’t install too close to the top of an open stack where excessive ambient
light could prevent operation. It is recommended to install on the most shaded
side of the stack avoiding direct sunlight.
•
Ambient or radiating temperatures in the vicinity of the mounting location
must not exceed 50°C.
See the Installation Guide for more details (available on CD).