Samson 3241 Manual

Also see for 3241: Mounting and operating instructions Mounting and operating instructions Mounting and operating instructions Mounting and operating instructions

Contents

20Competence in Functional SafetyFunctional safety of globe valves, rotary plug valves, ball valves and butterfly valves6.2 Electrical installation Responsibility Only cables with the prescribed outer diameter of the cable glands may be used. For EExi circuits the electrical cable data must comply with the data taken asthe basis during planning. Cable glands and cover screws must be fastened tightly to ensure that the degree ofprotection is met. Only devices with suitable equipotential bonding may be connected. The installation regulations for the respective explosion protection measures must beobserved. Prior to start-up, the voltage must be checked to ensure that it meets the permissiblerange. Prior to start-up, the necessary verifications (verification of intrinsic safety) must beavailable. The effect of disturbances to lines must be checked, especially– disturbance caused by EMC influences and– disturbance caused by capacitance influences when long lines are used (risk thata solenoid valve remains energized). The special conditions specified in the explosion protection certificates must beadhered to.Operator6.3 Installation of control valves Control valves must be installed free of stress and with low degrees of vibration. After installation, the flange joints must be checked for leaks. The pipeline must be rinsed prior to installing the control valve.Operator