TMU300 Motor Protection Transducers

The TMU300 motor protection transducers are designed for 1-3 Pt100 (RTD) sensors. A new current-saving measurement system allows the evaluation of 3 sensors with a transducer supplied by a 4-20 mA loop.

Features

• Protected design
• Pt100 sensors are connected in a 2-wire technique
• The output signal is a 4-20 mA current
• The output current value corresponds to the temperature of the hottest sensor

Specifications

• Connection of 1-3 Pt100 sensors in 2-wire technique
• Measuring range 0 ... 200 °C
• Automatic selection of the hottest sensor
• I < 3.5 mA in short circuit on any sensor
• I > 25 mA in interruption on any sensor
• Analog output 4-20 mA
• Nominal ambient temperature up to 85 °C
• No supply voltage required (supplied by a 4-20 mA loop)
• Sealed electronics