Siemens ST-H Manual De Operación página 9

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Mounting – Liquids Applications
Corrosive Applications
Flange, gasket, and hardware
supplied by customer.
2" coupling welded to
tank top
Interconnection
Note: Installation shall only be performed by qualified personnel and in accordance with
local governing regulations.
For optimum isolation against electrical noise, run cable separately in a grounded metal
conduit with no other cabling (except temperature sensor). Ground shield only at
transceiver. Insulate shield at junctions to prevent inadvertent grounding.
Seal all thread connections to prevent ingress of moisture.
For BASEEFA Zone 0, cable must be terminated externally to Zone 0 in an appropriate
manner. The cable must be protected against mechanical damage, and arrangements
sealed to prevent migration of atmosphere from Zone 0.
For BASEEFA Zone 0 to reduce risk of electrostatic discharge, housing (except face) must
be covered with copper mesh and grounded.
Do not route cable openly.
Do not run cable near high voltage or current runs, contactors, and SCR control drives.
7ML19985QK81
Blind Flange
Coupling
ST-H Transducer – OPERATION MANUAL
Flanged
coupling
Siemens
Milltronics
flange
adapter
Customer flanged standpipe.
If a metal flange must be
welded to pipe, refer to the
Transducers Applications
Manual. Available at
www.siemens.com/
processautomation
Coupling
Page EN-7

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