A2132 Standard Accuracy Ceramic Wire Wound Platinum RTD Elements

Supported Applications

The Omega Standard Accuracy Ceramic Wire Wound Platinum RTD Elements are Resistance Temperature Detectors (RTDs) designed for extremely low or high temperatures. These elements, constructed by placing a coiled platinum wire into a ceramic core and sealing the ends with glass, are tolerant of thermal shocks. The series is specified for use in dry environments only.

Operating Conditions & Performance

The 1PT100K-RTD-ELEMENTS series operates across multiple temperature ranges depending on the specific model configuration: -200 to 600 °C (-330 to 1110 °F), -200 to 850 °C (-330 to 1560 °F), and -50 to 400 °C (-60 to 750 °F). The elements meet Class B Tolerance (Per IEC751) with an Alpha value of 0.00385.

Response times vary by model size and medium velocity:

• Flowing Water V = 0.4 m/sec: 50% Response ranges from 0.2 to 0.4 sec; 90% Response ranges from 0.3 to 1.4 sec.
• Moving Air V = 1 m/sec: 50% Response ranges from 3.0 to 26.8 sec; 90% Response ranges from 8.8 to 90.0 sec.

The series offers limited vibration resistance, which depends on the mounting method. Wetted materials include 
platinum wire, a ceramic core, and glass seals.

Configuration Options

This series supports various dimensional configurations to accommodate tight spaces or specific insertion requirements. Standard electrical connections feature 10 mm bare leads; welded insulated extension leads are available as an option. OMEGA's RTD MI Cable is also offered in a wide selection of conductor configurations and sheath materials.

Dimensions and Resistance

The series includes elements with insertion lengths from 8 mm to 30 mm and diameters ranging from 1.0 mm to 4.5 mm. Nominal resistance options include:

• Single Element (1 x): 100 Ω, 500 Ω, and 1000 Ω.
• Dual Element (2 x): 100 Ω configurations are available for specific models such as *2PT100K2517 and *2PT100KN3045.

Tight Space Configurations

Specific models (A2105*, A2132*, A2142*) are designed for tight spaces with leads perpendicular to the body for surface measurements. These variants feature dimensions such as 2 L x 2.4 W x 2 mm D and operate in the -50 to 400 °C (-60 to 750 °F) range.

Key Product Differences

Variants within the series differ primarily by physical dimensions, nominal resistance values (1 x or 2 x), and temperature ranges. Self-heating error varies significantly based on size; for example, in flowing air V = 1 m/sec, self-heating errors range from 0.01 °C/mW to 0.28 °C/mW depending on the model.

Model numbers follow a structured guide indicating dimensions, nominal resistance, temperature range, and self-heating error (e.g., 1PT100KN815). Pricing is dependent on lead style. Dual element models are identified with an asterisk in documentation notes.