ABB SensyTemp TSP311 TSP311A5K1N3Z9S1D6P2S1L1H5-AZC4C6CSU5M5C07T1T2 Heavy-Duty Temperature Sensor Without Thermowell Reliable Process Temperature Measurement for Pipe, Tank and Demanding Industrial Installations

ABB TSP311A5K1N3Z9S1D6P2S1L1H5-AZC4C6CSU5M5C07T1T2 is a fully configured member of the SensyTemp TSP300 family for industrial temperature measurement. The TSP311 version is supplied without a thermowell and is generally selected for insertion into an existing compatible thermowell. This arrangement allows a plant to retain the installed process barrier while replacing or standardizing the measuring assembly.

Why plants specify a TSP311 assembly

The SensyTemp TSP300 platform is designed for demanding process applications such as pipe and tank temperature measurement. ABB combines an exchangeable measuring insert with a connection head and optional head-mounted transmitter. The family supports RTD or thermocouple sensing and can provide direct sensor output or a transmitter signal, depending on the ordered configuration. This flexibility makes the TSP311 suitable for both new projects and replacement work where mechanical and electrical compatibility must be preserved.

Measurement and communication choices within the family

• RTD or thermocouple measuring technology selected for the required temperature range and response.
• Exchangeable measuring insert to support maintenance without replacing the complete process connection.
• Direct sensor wiring or a head-mounted transmitter, according to the complete configuration.
• Available transmitter communications in the TSP300 family include 4–20 mA, HART, PROFIBUS PA and FOUNDATION Fieldbus.
• Connection-head and hazardous-area options are available for different plant standards.

Match the sensor to the existing thermowell

Because TSP311 is the version without a thermowell, the receiving thermowell is a critical part of the application. Confirm the insertion length, stem diameter, spring loading, extension arrangement and connection dimensions. The sensing tip must reach the intended immersion depth without bottoming incorrectly or leaving excessive clearance. Also check the thermowell material, pressure rating, process temperature and mechanical condition before installing a replacement sensor.

Procurement checklist for this long order code

• Quote the complete code TSP311A5K1N3Z9S1D6P2S1L1H5-AZC4C6CSU5M5C07T1T2 without shortening it.
• Confirm sensor type, element quantity, accuracy class and required measuring range.
• Verify insertion length, extension length, stem diameter and connection-head orientation.
• Check transmitter type, output signal, protocol and any local indication requirement.
• Confirm enclosure material, cable-entry thread and terminal arrangement.
• Match all explosion-protection and site certification requirements to the installation area.

Installation and commissioning focus

Before installation, compare the delivered assembly with the nameplate and approved instrument data sheet. Inspect the measuring insert and thermowell, ensure the spring-loaded tip seats correctly, and protect the connection head from moisture entry. After wiring, verify polarity and grounding as applicable, then compare the indicated temperature with a reasonable process reference. Any transmitter range, damping or sensor-break behavior should match the control-system configuration and maintenance record.