For Sitrans Ts500; Installation In "Flameproof Enclosures "D" And Enclosures "Tb - Siemens SITRANS TS Series Operating Instructions Manual

Safety notes
2.4 Use in flameproof enclosures "d" and protection in enclosures "tb"
Electrostatic charge
Risk of explosion in hazardous areas if electrostatic charges develop, for example, when
cleaning plastic surfaces with a dry cloth.
• Prevent electrostatic charging in hazardous areas.
2.4.1

For SITRANS TS500

2.4.1.1

Installation in "Flameproof enclosures "d" and enclosures "tb"

• The enclosure types AG0, AH0, AU0, AV0 and SITRANS TF for temperature sensors of the
TS500 series must be connected using suitable cable entry fixtures or conduit systems that
meet the requirements of IEC/EN 60079-1, sections 13.1 and 13.2 (with separate test
certificate).
• Cable entry fixtures (thread conduits) and sealing plugs in the basic design must not be used
in the sender and receiver enclosures.
• All openings not in use on the sender and receiver enclosures must be sealed as specified in
IEC/EN 60079-1, section 11.9.
• The connecting cable of the enclosure types AG0, AH0, AU0, AV0 and SITRANS TF for the
temperature sensor of the TS500 series must be installed so that permanent wiring and
adequate protection against damages is ensured.
• If the temperature at the entry fixtures were to exceed 60 °C, the connecting cables must be
heat resistant.
• When the connection is made in a potentially hazardous area, the connecting cable (free
cable end) of the enclosure types AG0, AH0, AU0, AV0 and TF for the temperature sensors of
the TS500 series must be installed in an enclosure that meets the requirements of an
approved degree of protection as specified in IEC/EN 60079-0, section 1.
• All types must in installed in sensor pockets with an adequate degree of protection for the
respective application.
• When a SITRANS TS500 with XP degree of protection is combined with a sensor pocket,
ASME PTC19.3 must be observed and a minimum wall thickness of 1 mm should be
considered.
• To separate Zone 1 from Zone 2 in a hazardous area, a wall thickness of ≥ 1 mm with
austenitic stainless steel should be considered. Also take into account the existing process
conditions.
When a sensor pocket is installed correctly and is sealed tight in Zone 0, the sensor screwed
into this sensor pocket must be approved for at least Zone 1.
• Any adequately dimensioned sensor pockets must be fully seated in the thread after five full
rotations and be ready to use.
• Any comments to this effect must be delivered with the device in an appropriate form.
16
WARNING
SITRANS TS100/TS200/TS300/TS500/TSinsert/TSthermowell
Operating Instructions, 08/2020, A5E47810090-AA