YOKOGAWA TDLS8000 Bedienungsanleitung Seite 312

Model: TDLS8000
4) Operation
WARNING
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Electrostatic charge may cause an explosion hazard. Avoid any actions that cause the generation of
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electrostatic charge, such as rubbing with a dry cloth on coating face of product.
Take care not to generate mechanical sparking when access to the instrument and peripheral
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devices in hazardous locations.
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5) Maintenance and Repair
WARNING
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The instrument modification or parts replacement by other than authorized Representative of
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Yokogawa Electric Corporation is prohibited and will void the certification.
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When opening the cover, the enclosure should be dry and clean to prevent from ingress water or
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dust.
6) Dual seal
TDLS8000 is Dual seal equipment with annunciation according to ANSI/ISA 12.27.01-2011.
Primary seal is the alignment flange (AF) or LAO.
Wetted materials:
Alignment flange; Stainless steel, Borosilicate glass, Teflon encapsulated viton (O-ring)
LAO; Stainless steel, Borosilicate glass, Silicone (O-ring)
Process gas pressure (working pressure) shall not exceed 500kPa (alignment flange) or 15kPa (LAO).
Process temperature at process window area shall be within -20 to 55°C.
The validation is used as annunciation of the primary seal failure. Failure of the primary seal is
detected by the validation failure.
Rev.1: May 23, 2018
<Anhang 8 Explosionsgeschütztes Instrument>
Yokogawa Electric Corporation
Date: January 16, 2015
Doc. No.: NFM029-A92 P.3
IM 11Y01D01-01D-E 5. Ausgabe: 15. Januar 2019-00
Anh.8-9