IM-P323-32
CTLS Issue 5
10
SX80 and SX90 Quickstart Guide
1.4 Hazardous liquids or gases in the
pipeline
Consider what is in the pipeline or what may have been in the
pipeline at some previous time. Consider: flammable materials,
substances hazardous to health, extremes of temperature.
1.5 Hazardous environment around the
product
Consider: explosion risk areas, lack of oxygen (e.g. tanks, pits),
dangerous gases, extremes of temperature, hot surfaces, fire hazard
(e.g. during welding), excessive noise, moving machinery.
1.6 The system
Consider the effect on the complete system of the work proposed.
Will any proposed action (e.g. closing isolation valves, electrical
isolation) put any other part of the system or any personnel at risk?
Dangers might include isolation of vents or protective devices or
the rendering ineffective of controls or alarms. Ensure isolation
valves are turned on and off in a gradual way to avoid system shocks.
1.7 Pressure systems
Ensure that any pressure is isolated and safely vented to
atmospheric pressure. Consider double isolation (double block and
bleed) and the locking or labeling of closed valves. Do not assume
that the system has depressurized even when the pressure gauge
indicates zero.
1.8 Temperature
Allow time for temperature to normalize after isolation to avoid the
danger of burns.
If the instrument is to be stored before use, protect from humidity
and dust in an ambient temperature of –30 °C to +75 °C.
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