Radio Energie RDC 207 and 208 Tachogenerators

The **Radio Energie RDC 207 and RDC 208 Tachogenerators** are DC tachogenerators featuring a rotor/stator set with permanent-magnet excitation. They are designed to be mounted on a smooth shaft with a fixed key, and the collector is positioned on the opposite side of the mounting. :contentReference[oaicite:0]{index=0}

The **Radio Energie RDC 207 and RDC 208 Tachogenerators** offer several notable features:

• Construction: Rotor/stator set with permanent-magnet excitation.
• Mounting: Smooth shaft with fixed key; collector on the opposite side of the mounting.
• Collector Material: Silver collector.

The **Radio Energie RDC 207 and RDC 208 Tachogenerators** have the following electrical specifications:

• Open Circuit Voltage at 1000 RPM: 60 V.
• Voltage Gradient: 0.06 V/rpm.
• Armature Resistance: 250 Ω.
• Maximum Thermal Load: 0.06 A.
• Maximum Allowed Speed: 5000 RPM.

The **Radio Energie RDC 207 and RDC 208 Tachogenerators** have the following mechanical specifications:

• Shaft Diameter: 12 to 16 mm.
• Mounting: Smooth shaft with fixed key; collector on the opposite side of the mounting.
• Collector Material: Silver collector.

For applications requiring a similar tachogenerator, the **Baumer GT7 series** is a suitable alternative. The GT7 series features a blind hollow shaft with diameters ranging from 12 to 16 mm and a housing diameter of 85 mm. It offers temperature compensation of tacho voltage as standard, with an open circuit voltage of 10 to 60 mV per rpm. The GT7 series is known for its high signal quality due to patented LongLife technology and does not require an auxiliary energy source. :contentReference[oaicite:1]{index=1}