PR-25AP

Supported Applications

The Omega PR-25AP series consists of air temperature RTD probes designed for accurate, fast responding temperature measurements in airstreams. The perforated sheath shields the sensing element from debris while allowing airflow to reach the sensor.

Operating Conditions & Performance

The PR-25AP series measures process temperatures ranging from -100 to 250°C (-148 to 500°F). The probes are rated for a differential pressure of 400 psi (27.6 bar) between the airstream and ambient conditions. Accuracy is available in IEC Class A, with an accuracy value of ±0.15°C @ 0°C.

Performance Specifications

• Measurement Range: -100 to 250°C (-148 to 500°F)
• Accuracy Class: IEC Class A (±0.15°C @ 0°C); 1/3 DIN and 1/10 DIN options available
• Differential Pressure Rating: 400 psi (27.6 bar)
• Media Compatibility: Air
• Approvals/Certifications: RoHS

Configuration Options

The series supports a configurable envelope of probe lengths, mounting threads, and accuracy classes. The probes feature an M12, 4-Pin, A-Coded Plug Connector for electrical connection.

Housing and Materials

• Sheath Material: 316L Stainless Steel (perforated)
• Probe Diameter: 1/4" (0.25")
• Overall Lengths: Available from 6" to 18", with specific lengths including 2", 3", 4", 9", and others as defined by model number.

Mounting Options

The series is available with or without NPT mounting threads. Configurable thread sizes include:

• No thread (0)
• 1/4 NPT
• 3/8 NPT
• 1/2 NPT

Sensor and Accuracy Options

The standard configuration utilizes IEC Class A accuracy. Higher precision options are available by modifying the model number:

• 1/3 DIN Accuracy: Change "-A-" to "-1/3-" in the model number (additional cost).
• 1/10 DIN Accuracy: Change "-A-" to "-1/10-" in the model number (additional cost).
• Pt1000 Elements: A limited selection is available; consult sales.

Cabling and Wiring

The series uses an M12, 4-Pin, A-Coded Plug Connector. Optional extension cables are sold separately (e.g., M12CM-T24SSPC-SF-2, M12CM-T24SSPC-RF-2). For option 2 wiring standard, add "-2" to the end of the model number at no additional charge.

Key Product Differences

Variants within the PR-25AP series are distinguished by probe length (e.g., 0600 for 6", 1200 for 12"), mounting thread presence and size, and accuracy class. The model number guide follows the format: PR-25AP-<ACCURACY>-<PROBE_LENGTH>-<MOUNTING_THREAD>-M12. Examples include PR-25AP-A-0600-0-M12 for a 6" probe with no thread and IEC Class A accuracy, or PR-25AP-1/10-1200-1/2-M12 for a 12" probe with 1/2 NPT threads and 1/10 DIN accuracy.