DMTA-10040-01EN, Rev. E, February 2018
Chapter 146
1.6.3.2 O-Ring Gasket and Membrane Seals
The NORTEC 600 contains seals that protect the instrument’s internal hardware from
the environment:
• Battery compartment cover seal
• I/O door seal
• Membrane vent
These seals must be properly maintained to assure environmental durability.
Instrument seals are evaluated and replaced as needed during the instrument annual
calibration. This should be performed at an authorized Olympus service center.
1.6.3.3 Display Protection
The NORTEC 600 includes a clear plastic sheet protecting the instrument display
window. Olympus strongly recommends leaving this protection sheet in place.
Replacements are available in packages of ten sheets (Olympus P/N: 600-DP
[U8780297]).
The display window is permanently bonded to the instrument case to fully seal the
instrument. If the display window becomes damaged, the front part of the case must
be replaced, along with the instrument’s keypad.
1.6.4 Environmental Ratings
The NORTEC 600 is an extremely rugged and durable instrument that can be used in
harsh environments. To classify the instrument’s durability in wet or damp
environments, Olympus has adopted the IP (ingress protection) system to rate how
well the instrument is sealed.
The NORTEC 600 is designed and manufactured to meet the requirements of the IP66
ingress protection rating. To maintain this level of protection, you are responsible for
the proper care of all routinely exposed membrane seals. Additionally, you are
responsible for returning the instrument to an authorized Olympus service center
each year to ensure that the instrument seals are properly maintained. Olympus
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