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ASTM E 1350 Document Information:
Title
Standard Guide for Testing Sheathed Thermocouples, Thermocouples Assemblies, and Connecting Wires Prior to, and After Installation or Service
ASTM International
Publication Date:
May 1, 2007
Scope:
This guide covers methods for users to test metal sheathed
thermocouple assemblies, including the extension wires, just prior
to, and after installation or some period of service.
The tests are intended to ensure that the thermocouple
assemblies have not been damaged during storage or installation, to
ensure that the extension wires have been attached to connectors
and terminals with the correct polarity, and to provide benchmark
data for later reference when testing to assess possible damage of
the thermocouple assembly after operation. Some of these tests may
not be appropriate for thermocouples that have been exposed to
temperatures higher than the recommended limits for the particular
type.
The tests described herein include methods to measure the
following variables of installed sheathed thermocouple assemblies
and to provide benchmark data for determining if the thermocouple
assembly is subsequently damaged in operation:
Loop Resistance:
Thermoelements,
Combined extension wires and the thermoelements,
Insulation Resistance:
Insulation, thermocouple assembly,
Insulation, thermocouple assembly and extension wires.
Seebeck Voltage:
Thermoelements,
Combined extension wires and thermocouple assembly.
This standard does not purport to address all of the safety
concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and
health practices and determine the applicability of regulatory
limitations prior to use.
Keywords:
- sheathed thermocouples
- thermocouple installation
- thermocouple testing
- thermocouples
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