Thermo Scientific STD5000, User Manual

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Chapter 6
Troubleshooting & Support
External
Filtration
Note the following:
●
Failures due to instrument supply air contamination are not covered by
original equipment warranty.
●
Applying instrument air that is heavily laden with oil or water can cause
the loss of unit output.
●
Poor quality instrument air can result in unit failure. We recommend
placing a coalescent, oil efficient filter upstream of each unit where oil
and/or water laden instrument air is suspected.
●
We recommend providing proper filtration off the compressor for the
removal of oil and water. Proper filtration will ensure reliable, long-
term operation with minimal maintenance.
●
An external filter system is available from Thermo Fisher.
Supply Pressure
Regulation
1. Maintain supply air at pressures required by the output range.
2. For standard configurations: Although the units should not be
damaged by excessive supply pressure, elevated zero levels may result.
The maximum supply pressure is 10 psig above the maximum
calibrated range.
For high pressure configurations: The units are calibrated to operate
within the published range. Supply pressures below the minimum
range may cause the unit to function abnormally. Pressures above the
maximum range can cause elevated zero levels. A regulator is not
required.
3. A filter regulator is available.
Thermo Fisher Scientific STD5000 & STD6000 User Guide 6-1