2. Safety / 3. Commissioning, operation
Transmitter model (only for design with transmitter)
Year of manufacture
Approval-related data
Sensor symbol
ungrounded
■
grounded
■
3. Commissioning, operation
DANGER!
Danger to life from explosion
By using a measuring insert without a suitable connection head (case), an
explosion risk occurs which can cause fatalities.
▶
Only use the measuring insert in the connection head designed for it.
DANGER!
Danger to life from missing instrument grounding
With missing or incorrect instrument grounding, there exists a risk of
dangerous voltages (caused, for example, by mechanical damage,
electrostatic charge or induction).
▶
Ground thermometer!
▶
Electrical screening may only be grounded at one end, and outside of the
Ex area.
Observe the special conditions (see chapter 4 "Special conditions for use (X conditions)").
3.1 Mechanical mounting
Mounting within metallic enclosures
The screen must be fully coupled to the equipotential bonding of the connected enclosure.
Mounting within non-metallic enclosures
All electrically conductive thermometer components within the hazardous area must be
provided with equipotential bonding.
WIKA additional information RTD and TC, non-incendive equipment (Ex n)
= ungrounded welded
= welded to the sheath (grounded)
Before mounting and commissioning the instrument, ensure you
read the operating instructions!
EN
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