HBM develops junction box to meet EMC rules

HBM has introduced the VK20A junction box to ensure EMC-compliant connection of T20WN and T22 torque transducers to HBM amplifier systems.

The VK20A for 14-30V DC supply voltages replaces the VK20 junction box to increase reliability of measurement because both the recently-launched T22 and the T20WN torque transducers utilise current inputs.

The T22 torque transducer is intended as a low-cost solution for applications that have less demanding accuracy requirements.

Main applications include static and dynamic torque measurement on stationary or rotating parts in laboratory, test and measurement, as well as in production and process control and education.

The transducer has a 0.5 accuracy as defined by HBM and comes in different nominal (rated) torque steps ranging from 5Nm to 1000Nm.

The maximum permissible rotational speed ranges from 9,000 up to 16,000rpm, depending on the measuring range.

The T20WN torque transducer, which has rated torques of 0.1-200Nm, delivers an analogue output signal at 0-10V of the torque with high bandwidth, and is therefore suitable for use in production as this output signal can be processed by all current analysis electronics.

T20WN also operates without wear and is therefore maintenance-free: the supply voltage is transferred without contact to the rotor of the transducer.

The return transfer of the torque value to the stator is as an analogue voltage signal.

The simple installation in the production line is another advantage of the use of T20WN for checking rotary switches.

The integration of the transducer with the test configuration occurs via simple bellows couplings, which are also available from HBM as accessories.

The integrated speed measuring system in T20WN delivers 360 pulses per revolution on two tracks offset by 90 degrees.

After edge detection, this means that 1,440 pulses are available.

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