SM-4 page 2
General Safety Instructions
While operating the SM-4, parts of its interior are under high voltage and UV-beams
are produced inside the photometer. If safety regulations are ignored physical and/or
material damages could occur. Only qualified personnel should be allowed to
operate the SM-4. Following conditions for correct function of the SM-4 are to be
held: careful and correct storage, proficient operation and maintenance.
Do not operate instrument if it is damaged.
When connecting the SM-4 system to a power source please note the related
safety regulations.
The SM-4 should be operated from the type of power source indicated on the
rating plate.
Make sure that the power cords are not damaged.
Regulations for prevention of accidents are to be followed.
Before opening the SM-4 system disconnect it from the mains power supply.
Repairs and maintenance on the opened and powered instrument should only be
carried out by trained personnel.
Operate the SM-4 on a stable and dry surface. The interior of the SM-4 should
never get moist or wet. In case it happens, consult an expert.
The SM-4 is dedicated for the measurement of mercury concentration in stack
gases. Do regard the related dangers especially while operating with toxic gases.
Make sure that these parts of the instrument guiding the gas are not damaged
and that the gas is guided back to the source or into an appropriate absorber.
The SM-4 must not be used to measure explosive gases and must not be
operated in hazardous areas.
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