Omega SA2 Quick Start Manual

SA2-RTD
Molded Silicone Surface RTD Sensors
INSTRUCTION
SHEET
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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 self-
adhesive 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.
T/C WIRE
1 METER
(40 INCHES)
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
M0503D/0708
2.5
(0.098)
SILCONE
RUBBER
50
(1.96)
15
PROTECTIVE PAPER TAPE
(0.59)
OVER SILICONE ADHESIVE
DIMENSIONS: MM (IN)
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.
35
(1.38)
12
(0.47)
SILICONE RUBBER HOUSING WITH SILICONE
2.5
ADHESIVE AND PROTECTIVE PAPER TAPE ON
(0.098)
MOUNTING SURFACE
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")
1 METER
(40 INCHES)
T/C WIRE