WIKA TR25 - Handbuch (Seite 8)

14073045.01 10/2013 GB/D
8 WIKA operating instructions model TR25 (Ex i)
GB
DANGER!
Danger of death caused by electric current
Upon contact with live parts, there is a direct danger of death.
■ The instrument may only be installed and mounted by skilled personnel.
■ Operation using a defective power supply unit (e.g. short circuit from the mains
voltage to the output voltage) can result in life-threatening voltages at the
instrument!
WARNING!
Residual media in the dismounted instrument can result in a risk to persons, the
environment and equipment.
Take sufficient precautionary measures.
Do not use this instrument in safety or emergency stop devices. Incorrect use of the
instrument can result in injury.
Should a failure occur, aggressive media with extremely high temperature and under
high pressure or vacuum may be present at the instrument.
DANGER!
Make sure that the thermowell is sufficiently earthed.
2.6 Labelling, safety marks
Additional data for Ex instruments
2. Safety
Model
Sensor in accordance with standard
■ F Thin-film resistor
■ W Wire-wound resistor
Approval number
Year of manufacture
Transmitter model
(only for design with transmitter)
Year of manufacture