Dwyer MTL5045 - Manual (Page 38)

7 MAINTENANCE
Note: Limit tests and routine maintenance to those described in this
section and section 4. Return any isolator identified as faulty to the MTL
group company or representative from which it was purchased, for
repair or replacement.
7.1 Routine maintenance
Occasionally check the general condition of the installation to make sure
that no deterioration has occurred. At least once every two years (and
more frequently for particularly harsh environments), check that:
◆
isolators are of the types specified in the relevant documentation;
◆ isolators and connectors are correctly and legibly tagged,
connectors are plugged into the corresponding isolators and tag
details given comply with the relevant documentation;
◆ isolators are securely clipped to the DIN rail;
◆ all cable connections are properly made to the plugs;
◆ all plugs are fully inserted;
◆ all connecting cables are of the specified type and rating, are
correctly routed and segregated (particularly when fitted in
enclosures), and are not frayed or otherwise damaged;
◆ all cable screens are properly earthed;
◆ there is no sign of damage or corrosion.
7.2 Enclosures
The only maintenance needed for enclosures is cleaning and periodic
visual inspections. Clean external surfaces only, using soap and water;
do not use chemical solvents or proprietary cleaning fluids. Every year
(more frequently in harsh environments), inspect enclosures and check
that:
◆
they are attached securely to their mountings;
◆ any accumulation of water inside has been removed (using the
drain plug, if fitted);
◆ cable gland nuts are tight;
◆ there are no signs of any damage;
◆ all connections are properly made.
8 OTHER USEFUL DOCUMENTATION
MTL Hazardous Area Products Catalogue
AB001
Application Brief
AB002 Application Brief
INA5000 DofC and ATEX Safety Instructions
INM073A Connection and Configuration Manual
Customer drawings
CD5001-30
MTL5000 Power Bus Kits
CD5001-41 MTL5000 Series Tagging and Earth Rail
Accessories
CD5001-42
MTL5000 Tag and Earth Accessories
IEC 61158-2
ISA-S50.02 for 31.25kbit/s fieldbus systems
F
OUNDATION ™ Fieldbus 31.25kbit/s Physical Layer Profile
Specification FF-816
HART® is a registered trademark of the HART Communication Foundation
Fieldbus Foundation™ is a trademark of Fieldbus Foundation, Austin, Texas, USA
F OUNDATION ™ is a trademark of Fieldbus Foundation, Austin, Texas, USA
34 INM5000-6 Jul 2010
WARNING
If an isolator is faulty, DO NOT make repairs or
modifications as these may affect the intrinsic safety of
the unit.