Installing the Basic System
Hazardous Area Installations
Thermo Fisher Scientific
AutoPILOT PRO Flow Computer User Guide 3-13
Figure 3–11. Internal battery option wiring diagram
The AutoPILOT PRO flow computer has been designed to satisfy the
requirements of Clause 1.2.7 of the essential Health and Safety
Requirements such that it will not give rise to physical injury when handled
properly. The instrument does not produce excessive surface temperature,
nor does it emit infra red, electromagnetic, or ionizing radiation.
Before starting installation work, ensure all power connections are isolated
and take precautions to prevent power from being restored while work is
taking place. Hazardous area installations forbid the use of tools or
equipment that could produce an explosion hazard by causing a spark or
imposing excessive mechanical stress.
The instrument must be installed in a manner to avoid exposure to thermal
or mechanically induced stresses, and in addition, the instrument should
not be exposed to chemically aggressive substances beyond the expected
levels. The instrument is not intended to be exposed to significant
conditions of dust buildup.
Caution
Aggressive substances may require extra protection.
In cases where impact or other mechanical forces may be expected,
appropriate methods of protection must be used. Additional protection
may be required if the flow computer is to be installed in locations where it
may be subject to damage.
Where the equipment may be exposes to excessive external stresses, e.g.
vibration, heat, impact, the equipment must be protected by additional
means of protection.
Hazardous Area
Installations
