SA2-RTD
Molded Silicone Surface RTD Sensors
M0503D/0708
INSTRUCTION
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GENERAL DESCRIPTION
The OMEGA SA2 Surface RTD (Resistance Temperature Detector) is manufactured with a flexible molded silicone sensor patch. This sensor design utilizes a silicone based selfadhesive aluminium foil backing usable at temperatures from -50 to 200°C (-58 to 392°F).
The SA2 sensors are manufactured in two styles. The SA2C for Curved surfaces and the SA2F for Flat surfaces. These sensors are manufactured with 100 ohm Class B thin film RTD elements whose resistance vs. temperature characteristics conform to the International Standard IEC 60751 (also known as DIN Platinum RTDs). The sensors also include four #26 AWG stranded nickel plated copper extension wires that are PFA insulated and jacketed. The RTD element is bonded to the inner surface of the shell adhesive foil backing to enhance thermal transfer for faster response times.
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2.5 |
T/C WIRE |
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(0.098) |
SILCONE |
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RUBBER |
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50 |
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(1.96) |
1 METER |
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(40 INCHES) |
15 |
PROTECTIVE PAPER TAPE |
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(0.59) |
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OVER SILICONE ADHESIVE |
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DIMENSIONS: MM (IN) |
Figure 1. SA2C Pad
OPERATING INSTRUCTIONS:
1.Prepare the surface to be measured by cleaning it of oils and dirt. A general solvent or alcohol will do. Doing this will allow for better surface adhesion.
2.Peel the protective tape from the underside of the mounting surface (see Figure 1). (Take care not to get finger oils on the silicone adhesive or mounting surfaces.)
3.Simply press the sensor onto the surface and rub for maximum adhesion. It is
advised that the leads also be affixed to the mounting surface to reduce the pull forces on the wires and provide strain relief to the sensor
4.Connect the extension wires to a temperature measuring or controlling device and you are ready to begin taking temperature readings.
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35 |
1 METER |
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(1.38) |
(40 INCHES) |
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12 |
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(0.47) |
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T/C WIRE |
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2.5 |
SILICONE RUBBER HOUSING WITH SILICONE |
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ADHESIVE AND PROTECTIVE PAPER TAPE ON |
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(0.098) |
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MOUNTING SURFACE |
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Figure 2. SA2F Pad
SPECIFICATIONS:
RTD Type: Platinum
Base Resistance:
100 Ohms at 0°C
Tolerance:
Class B = ±0.30+0.005t (t=temperature in °C)
Temperature Rating:
-50 to 200°C (-58 to 392°F)
Materials:
Pad:
Molded silicone rubber over aluminum foil backing
Mounting Adhesive: silicone
Wire: #26 AWG stranded nickel plated copper, PFA insulated and jacketed
Dimensions:
SA2C Pad:
50 x 15 x 2.5 mm (1.96 x 0.59 x 0.098")
SA2F Pad:
35 x 12 x 2.5 mm (1.38 x 0.47 x 0.098")
Wire Lengths Available:
1 m (40"), 2 m (80") and 3 m (120")
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