Charge amplifier 2688 Vibration controllers
Charge amplifier 2688: measurement controllers by Brüel & Kjær Vibro for vibration controllers.
Download the datasheet (opens in a new tab) This series on the Brüel & Kjær Vibro site (opens in a new tab)
Models in the series
One column per model: what differs between the models of the series.
| Parameter | 2688 eli-m-66b4418b5df566b65eccc32f |
|---|---|
| Frequency response | 1–100000 Hz |
| Status | Active |
| Datasheet | PDF — 2688 (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 converts piezoelectric sensor signals to low-impedance voltage for vibration monitoring and is also designed for radiation areas in nuclear power stations.
The manual describes a differential input with balanced accelerometers such as 8315 and 8324. Preserve the appropriate cable and shielding arrangement.
No. The version table lists 1, 5 or 10 mV/pC. Version 2688-R-003 has 0 V DC offset, while the other listed versions have −10 V.
The general table states 1 Hz to 100 kHz at ±1 dB. When ordering, check the exact version, charge gain and input-loading conditions.
The amplifier itself is IP20. The manufacturer requires DIN-rail installation in a shielded IP65 junction box and double-screened cables according to the wiring instructions.
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