SA1-RTD-B-series

Supported Applications

The Omega SA1-RTD Series consists of self-adhesive polyimide fast response RTD surface sensors designed for flexible surface temperature measurement. These thin-film platinum resistance detectors are engineered to mount directly onto clean, dry surfaces using a silicone adhesive backing with paper peel protection.

Operating Conditions & Performance

The series utilizes 100 Ω at 0°C platinum film elements conforming to DIN Class 'B' accuracy. The standard measurement range is -73 to 260°C (-99 to 500°F) for continuous operation, with short-term capability up to 290°C (554°F) when installed using OMEGABOND® Air Set Cements.

Performance specifications include a resistance tolerance of ±0.12% at 0°C and fast thermal response times: less than 0.9 seconds for 63% response in water flowing at 3' per second, and less than 2 seconds on a hot plate. The sensor pad dimensions are 25 x 25 x 3 mm (1.00 x 1.00 x 0.122").

Configuration Options

The SA1-RTD-B series is configurable across wire lengths, connector types, and wiring configurations to suit specific installation needs.

• Wire Lengths: Standard options include 1 m (40"), 2 m (80"), and 3 m (120"). Custom lead wires longer than 120" are available by modifying the model suffix, with cost added per additional 12".
• Connectors: Models may be ordered with MTP connectors or a standard size 3-pin OTP connector. An audio-style TA3F connector is also an option for specific termination requirements.
• Wiring Configuration: The series features 3-wire construction as standard, color-coded per IEC-60751 and ASTM-E-1137. A 2-wire style is available by inserting '2W' after the 'B' in the part number.
• Packaging: Sensors are sold in convenient packages of three units.

The sensor construction includes a polyimide base layer with silicone adhesive, topped with fiberglass tape and polyimide tape for electrical isolation. Extension wires consist of #26 AWG stranded nickel-plated copper that is PFA insulated and jacketed.

Key Product Differences

Variants within the SA1-RTD-B series are distinguished by their wire length suffixes (e.g., -80 for 80", -120 for 120") and connector designators. The base model number SA1-RTD-B denotes a sensor with standard lead wires, while adding -MTP, -OTP, or -TA3F specifies the termination type.

The series offers specific ordering modifications for 2-wire configurations and extended lengths. For example, replacing 'MTP' with 'OTA' provides a standard size 3-pin connector at no additional cost, whereas selecting the TA3F audio connector incurs an additional charge per pack. The model number guide follows the format: SA1-RTD-B - [Wire Length] - [Connector Type].