3
For Safe Use of Product
Introduction
For Safe Use of Product
For the protection and safety of the operator and the instrument or the system including
the instrument, follow the instructions on safety described in this manual when handling
this instrument. In case the instrument is handled in contradiction to these instructions,
GE Masoneilan does not guarantee safety. GE Masoneilan will not be liable for
malfunctions or damage resulting from any modification made to this instrument by the
customer. Give your highest attention to the following:
Installation
❑ The instrument must be installed by an expert engineer or skilled personnel. The
procedures described about INSTALLATION are not permitted for operators.
❑ Some of the operations stroke the valve. Keep clear of the valve while the
positioner is pneumatically or electrically supplied, so as not to be hit by
unexpected movements of the valve.
❑ Where ambient temperature is high, take care not to burn yourself, as the
instrument surface reaches a high temperature.
❑ All installation shall comply with local installation requirement and local electrical
codes.
❑ Do not supply air at a pressure exceeding the maximum rated air supply
pressure. Doing so can result in a high risk of damage or cause an accident.
❑ To avoid injury or the process being affected when installing or replacing a
positioner on a control valve, ensure that;
❑ All inputs to the valve actuator and other accessories of the valve and
actuator, including air supply and electrical signal, are cut off;
❑ The process has been shut down or the control valve is isolated from the
process by using bypass valves or the like; and
❑ No pressure remains in the valve actuator.
❑ Auto-Manual switch must not be moved by anyone except for the authorized
engineer.
Wiring
❑ The instrument must be installed by an expert engineer or skilled personnel. The
procedures described about WIRING are not permitted for operators.
❑ Confirm voltages between the power supply and the instrument before
connecting the power cables and that the cables are not powered before
connecting.
Operation
❑ Wait three minutes after power is turned off, before opening the covers.
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