Safety Instructions - Endress+Hauser t-mass T 150 Installation Instructions Manual

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Safety instructions

• Only use original parts from Endress+Hauser.
• Comply with national regulations governing mounting, electrical installation,
commissioning and maintenance.
• The specialized technical staff involved in the mounting, electrical installation,
commissioning, maintenance and installation of the measuring devices must meet the
following requirements:
• Be trained in instrument safety.
• Be familiar with the individual operating conditions of the devices.
• In the case of Ex-certified measuring devices, they must also be trained in explosion
protection.
• The measuring device is energized! Risk of fatal injury from electric shock. Open the
measuring device only when the device is de-energized.
• For measuring devices intended for use in hazardous locations, please observe the
guidelines in the Ex documentation (XA).
• When using measuring devices in safety-related applications in accordance with IEC 61508
or IEC 61511: following installation, re-commission the device in accordance with the
Operating Instructions. Document the installation.
• Before removing the device: set the process to a safe state and purge the pipe of dangerous
process substances.
• Burn hazard from hot surfaces! Before commencing work: allow the system and measuring
device to cool to a touch-safe temperature.
• In the case of devices in custody transfer, the custody transfer status no longer applies once
the seal has been removed.
• The Operating Instructions for the device must be followed.
• Risk of damage to electronic components! Ensure that the working environment is
protected against electrostatic discharge.
• After removing the electronics compartment cover: risk of electric shock due to removal of
contact protection!
Turn off the measuring device before removing internal covers.
• Only open the housing for a brief period. Avoid ingress of foreign bodies, moisture or
contaminants.
• Replace defective seals only with original seals from Endress+Hauser.
• If threads are defective, the measuring device must be repaired.
• Threads (e.g. of the electronics compartment cover and connection compartment cover)
must be lubricated if an abrasion-proof dry lubricant is not available. Use acid-free, non-
hardening lubricant.
• If, during installation, spacing is reduced or the dielectric strength of the measuring device
cannot be guaranteed, perform a test on completion of the work (e.g. high-voltage test in
accordance with the manufacturer' s instructions).
• Service plug:
• Do not connect in explosive atmospheres.
• Only connect to Endress+Hauser service devices.
• Observe the instructions for transporting and returning the device outlined in the Operating
Instructions.
If you have any questions, please contact your www.addresses.endress.com.
Endress+Hauser
EA01105D
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