ds821 standard 4 mm eddy-current displacement systems Inductive (eddy current)
ds821 standard 4 mm eddy-current displacement systems: sensors and measurement devices by Brüel & Kjær Vibro for inductive (eddy current).
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Models in the series
One column per model: what differs between the models of the series.
| Parameter | ds821.mc301/1/x eli-m-93db48d57fb21da2e0d1458e | ds821.mc301/2/x eli-m-369d8497a3bf65b71ded0e9f | ds821.mc301/3/x eli-m-09a3b53423fcb5d66aac2646 | ds821.mc301/4/x eli-m-00e8ae9965f8e54d1bcd2615 |
|---|---|---|---|---|
| Frequency response | 0–10000 Hz | 0–10000 Hz | 0–10000 Hz | 0–10000 Hz |
| Operating temperature | -55–180 °C | -55–180 °C | -55–180 °C | -55–180 °C |
| Contact | Non-contact | Non-contact | Non-contact | Non-contact |
| Status | Active | Active | Active | Active |
| Datasheet | PDF — ds821.mc301/1/x (opens in a new tab) | PDF — ds821.mc301/2/x (opens in a new tab) | PDF — ds821.mc301/3/x (opens in a new tab) | PDF — ds821.mc301/4/x (opens in a new tab) |
The industries we serve
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Aerospace
- Aircraft door-lock position detection
- Airlines & Aerospace Our balancing machines and moment weighing scales for aerospace drives ensure maximum precision, ease of use, and modular flexibility delivering reliability and performance without compromise contributing to your economic success.
- Automatic balancing machines Automatic balancing machines from Schenck are advanced solutions for precise balancing of rotating components in automated production processes. We offer systems and stations for balancing crankshafts, wheels and tires, turbochargers, electric armatures, drives, axle drive units, torque converters, drive shafts, disc-shaped rotors, as well as fans. Our systems increase productivity, ensure consistent quality, and are tailored to the needs of the automotive, energy, and industrial sectors.
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Medical industry
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Environment
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Electric motor manufacturing
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Food industry
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Automotive industry
- Airlines & Aerospace Our balancing machines and moment weighing scales for aerospace drives ensure maximum precision, ease of use, and modular flexibility delivering reliability and performance without compromise contributing to your economic success.
- Automatic balancing machines Automatic balancing machines from Schenck are advanced solutions for precise balancing of rotating components in automated production processes. We offer systems and stations for balancing crankshafts, wheels and tires, turbochargers, electric armatures, drives, axle drive units, torque converters, drive shafts, disc-shaped rotors, as well as fans. Our systems increase productivity, ensure consistent quality, and are tailored to the needs of the automotive, energy, and industrial sectors.
- Axle Drives With our balancing machines for front and rear axle transmissions, the measured unbalance is corrected by drilling into the drive flanges of the transmissions (welding optional). We support you with our interdisciplinary expertise in the production of front and rear axle transmissions from the initial idea to the design stage through to series production.
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Industrial automation
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Plastics
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Optics
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3D printing
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Battery manufacturing
Frequently asked questions
Answers to the most common questions about our products and services
It is a net linear displacement span of 4 mm at approximately 0.5–4.5 mm target distance from the probe. It uses eddy-current measurement against conductive material, with DC to 10 kHz at −3 dB.
It requires a probe with integrated cable and a matching od13x driver; a separate connection cable is added according to system length. The red colour code identifies the range family, but component and configuration codes must also match.
Documented nominal system lengths are 5, 10 or 25 m. Select probe cable and connection cable together for the matching total system length; do not add a generic cable without checking the configuration.
No. Sensitivity error and deviation from the reference line are specified by system length and temperature. Calibration data refer to 42CrMo4, so also check the actual shaft material.
No. The probe is documented IP68 for 2 hours at 10 bar, while the driver is IP20. Following storage or operation below −30 °C, the probe protection is reduced permanently to IP65 under the specification footnote.
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