Siemens ST-H Manual De Operación página 9

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