The Surface Temperature Transducer MM0035 measures the actual temperature of the given object. In order to do this, it is essential to keep the contact surface area of the transducer as small as possible. This prevents the transducer from affecting the temperature of the object while at the same time being able to maintain a good contact between the sensor and the object. It is also important that the materials the transducer is constructed from have a low heat capacitance. These features are incorporated into the transducer's design.
The results provided by this transducer are used to evaluate the thermal discomfort from floors as well as provide input for mean radiant and plane radiant temperature calculations. The transducer can be used with the following instruments: Thermal Comfort Data Logger 1221 , Multipoint Sampler and Doser 1303 and Multipoint Sampler 1309 .
The actual sensor in the transducer is a Pt100 sensor. To provide a good contact between the sensor and the object to be measured, the sensor is bonded to a very thin metal foil, which has a high conductivity but a low heat capacitance. The sensor is mounted on a spring. This reduces the heat conducted to the shaft of the transducer and enables a good contact to be achieved even if the transducer is not held exactly perpendicular to the surface. By choosing a Pt100 sensor and a 4-wire connection, it is possible to connect the transducer using an extension cable without a loss of accuracy. The transducer is built to operate in the temperature range.
The Pt 100 Sensor is a resistor sensor (resistance of 100 Ohm at O°C) made of platinum, which provides excellent stability and accuracy. The actual sensors chosen for this transducer provide results within a narrow tolerance range. This enables the transducer to be moved around and connected to other instruments without requiring any pre-measurement adjustments to be made. Although the transducer will operate without ever requiring recalibration, it should be checked regularly for possible physical damage, which may impair its functionality.
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To be used with Thermal Comfort Datalogger 1221
Download MM0035 Product Data Sheet
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