WIKA operating instructions RTD and TC, intrinsically safe designs
3345267.08 06/2011 GB/D
9
GB
2. Safety
2.5.2 Product labels for thermocouples
Model
Approval number
Year of manufacture
For an explanation of
symbols, see page 10
Transmitter model
(only for design with transmitter)
Year of manufacture
For an explanation of
symbols, see page 10
Approval number
Model
■
Product label for measuring insert TC10-A
■
Additional data for Ex instruments
"ungrounded"
Sensor in accordance with
standard
■
ungrounded
■
grounded
Legende:
■
ungrounded
welded insulated
■
grounded
welded to the sheath