Supported Applications
The Omega FTP series comprises Flow Through Thermocouple Sensor Assemblies designed for temperature measurement in uncontaminated fluids. These probes are engineered to fit within 1/4 inch tubes, enabling direct sensing of fluid flow conditions.
Operating Conditions & Performance
The sensor elements meet or exceed Special Limit of Error (SLE) and EN 60584-2 standards with Tolerance Class 1 accuracy. The series utilizes Type J, K, T, or E thermocouple types depending on the specific model configuration selected.
Key Specifications
• Sensor Types: Thermocouples (Type J, K, T, E)
• Accuracy Class: Meets or exceeds Special Limit of Error (SLE) and EN 60584-2; Tolerance Class 1
• Media Compatibility: Uncontaminated fluids
• Wetted Materials: 304 stainless steel
Configuration Options
The FTP series is configurable across sensor types, connector styles, and lead lengths. The standard flow-through probe configuration features a stem length of 51 mm (2") with an overall diameter of 6 mm (¼"). Process connection is provided via a ¼ NPT SS fitting.
Connector Options
The series supports multiple integral connector types to suit different instrumentation interfaces:
• SMPW connectors
• Miniature connectors
• M8 straight plug (add "M8-S-M")
• M12 straight plug (add "M12-S-M")
• M8 right-angled plug (add "M8-R-M")
• M12 right-angled plug (note: source lists add "M12-S-M" for this option)
Model Number Configuration
The model number structure follows the pattern FTP-(*)-2-SMP-M, where:
• (*) = Thermocouple type (J, K, T, E)
• 2 = 2 inches stem length
• SMP-M = SMP connector, male
Additional Configurations
Beyond the standard flow-through probe, the series documentation references related special purpose probes including:
• Dual thermocouple ¼NPT (TC-(*)-NPT-G-36-DUAL-SMPW-M)
• Dual RTD ¼NPT with lead lengths such as 72 inches (1829 mm) and curves E for 0.00385 or A for 0.00392
• Solder iron measuring module (STS-2X)
Other stem lengths are available upon consultation with the Sales Department.
Key Product Differences
The primary variation within the FTP series is defined by the thermocouple type selected for the application. The four enabled variants correspond to Type E, J, K, and T sensors (e.g., FTP-E-2-SMP-M, FTP-J-2-SMP-M). All listed flow-through probes share a 51 mm (2") stem length and utilize the SMP male connector as the base configuration. Variations in connector geometry are achieved by appending specific suffix codes to the model number.
| Color Code Standard | ANSI |
| Electrical Connection | Miniature Male Thermocouple Connector |
| Junction Type | Grounded |
| Probe Diameter | 0.25 in |
| Probe Length | 2 in |
| Process Connection Size | N/A |
| Process Connection Type | Process Tee Fitting |
| Process Temperature, Min | 0 °C |
| Series ID | FTP-PROBE |
| Sheath Material | 304 Stainless Steel |
| Temperature Coefficient | 0.00385 Ω/Ω/°C |
| Temperature Coefficient Note | α = 0.00385 Ω/Ω/°C |
| Temperature Sensor Type | Thermocouple |