Emerson Rosemount Volume 1, Quick Start Manual, Page: 15 / 32

7 Rosemount Series 183 Thermocouple
7.1 Specifications
7.1.1 Performance Specifications
The thermoelectric current relationship in a thermocouple is standardized
and defined by ASTM E-230. All Rosemount Series 183 Thermocouples
conform to these standards with “special limits of error” accuracy. The
particular characteristics of each ISA type thermocouple are outlined in
Table 7-1 .
7.1.2 Physical specifications
Sheath material
304 SST for types J, E, and T (used at temperatures up to 871 °C). Inconel for
type K (used at temperatures up to 1150 °C).
Lead wires
Thermocouple, external lead wires—20 AWG wire, PTFE-insulated. Color
coded per lead wire configuration schematic shown in
Figure 2-2 .
Identification data
The model and serial numbers and up to six lines of permanent tagging
information are etched on each sensor adapter. Stainless steel tags are
available upon request.
Insulation resistance
100 × 10
6
ohms minimum insulation resistance when measured at 100 Vdc
at room temperature.
Enclosure ratings
When installed properly, Rosemount Series 183 Sensors are suitable for
indoor and outdoor NEMA 4X and installations.
March 2021 Quick Start Guide
Quick Start Guide 15