Bruel-Kjaer OD-162 Oscillator

The Bruel-Kjaer OD-162 Oscillator is a precision-engineered device designed for displacement measuring applications with an 8 mm range. It plays a crucial role in industrial monitoring systems by generating a stable and accurate signal, ensuring reliable displacement measurement in demanding operational environments.

Built to the highest engineering standards, the OD-162 is part of Bruel-Kjaer’s renowned portfolio of monitoring and measuring solutions. Its robust design guarantees long-term durability, even under harsh environmental conditions such as temperature fluctuations, dust, and vibration. This makes it a trusted choice for critical applications where accurate measurement is vital.

The Bruel-Kjaer OD-162 Oscillator works seamlessly with compatible displacement sensors, forming a complete solution for precise measurement in power plants, oil & gas facilities, manufacturing plants, and other industrial operations. By maintaining a constant and stable output signal across its 8 mm displacement measuring capability, it allows early detection of potential mechanical issues such as misalignment, wear, or deformation.

Compact in size and straightforward to install, the OD-162 offers easy integration into existing systems. It requires minimal maintenance, reducing downtime and operational costs while maximizing measurement reliability. Its compatibility with the broader Bruel-Kjaer OD-162 Oscillator sensor range ensures flexibility in configuration, making it suitable for both new projects and upgrades to existing installations.

Industrial reliability is at the core of the Bruel-Kjaer OD-162 Oscillator. It supports predictive maintenance programs by delivering high-quality measurement data, enabling operators to take proactive steps to protect equipment and maintain optimal performance. Whether used in continuous vibration monitoring, displacement analysis, or structural integrity testing, it provides consistent accuracy and stability.

With its proven performance in various industries, the OD-162 represents a sound investment for facilities that demand precision, reliability, and seamless integration. By incorporating this oscillator into your monitoring system, you can enhance operational safety, extend machinery life, and improve maintenance efficiency — all with the trusted quality of the Bruel-Kjaer brand.

Technical Specifications

The Brüel & Kjær Vibro OD-162 is an oscillator/driver unit — a separate electronics module required by the SD-16x eddy-current displacement sensor family (SD-161, SD-164), which unlike the IN-08x family do not have an oscillator built into the sensor body. It provides a measurement range of up to 8mm with a frequency response of 0–5kHz (-3dB) extending to 0–10kHz (-5dB), an output signal range of -1.5V to -17.5V DC, and a nominal sensitivity of -2mV/µm calibrated for 42CrMo4 steel.

The OD-162 operates from an -18 to -26V DC supply drawing 30mA or less, and is rated for -30°C to +65°C operation. Linearity error is ±1% at room temperature, widening to ±7% across the full rated temperature range. The unit weighs approximately 300g, carries IP20 housing protection, and supports cable runs of up to 1000m between the oscillator and the monitoring rack — a genuinely long reach that accommodates monitoring racks located well away from the field-mounted sensor.

Applications

The OD-162 serves as the drive/interface electronics in an eddy-current displacement measuring chain, paired specifically with SD-161 or SD-164 sensors for radial vibration and axial position monitoring on turbines, compressors, and other rotating machinery. Because the oscillator and sensor form a matched pair in this architecture, replacing either component in isolation requires confirming compatibility with the other half of the chain already installed.

Why Seven Star LLC

Seven Star LLC supplies genuine Brüel & Kjær Vibro oscillator units, including the OD-162, to power generation, oil & gas, and petrochemical customers across Oman and the wider GCC, and confirms the exact matching sensor model (SD-161 or SD-164) and cable run length before confirming an order.

Why the Long Cable Run Matters

Supporting cable runs up to 1000m between the oscillator and the monitoring rack gives plant designers real flexibility on where the protection system can physically be located relative to the machine being monitored — useful on large sites where the control room or instrument rack room sits a significant distance from the turbine, compressor, or pump train being protected. This long reach is a genuine advantage of the separate-oscillator SD-16x/OD-16x architecture over some integrated-oscillator designs, which can have more limited effective cable lengths between the sensor and its rack.

Matched-Pair Replacement Discipline

Because the OD-162 oscillator and its SD-161/SD-164 sensor are calibrated as a matched pair, replacing only the oscillator while keeping an aged sensor (or vice versa) can introduce a small calibration mismatch even though both components individually meet their own specification — the combined system tolerance is what the original commissioning calibration accounted for. Seven Star LLC recommends replacing both halves of the pair together when either component reaches end of service life, or at minimum re-verifying the combined system’s calibration after a single-component replacement, rather than assuming a drop-in swap needs no further check.

Ordering Notes

When quoting an OD-162, Seven Star LLC confirms the exact sensor model it will pair with (SD-161 or SD-164), the required cable run length, and the customer’s existing monitoring rack compatibility, since B&K Vibro’s displacement-sensor product lines span several architectures (integrated-oscillator IN-08x versus separate-oscillator SD-16x/OD-16x) that are not interchangeable with each other.

Request a Quote for Bruel-Kjaer -OD-162

Submit a formal inquiry through our RFQ page with your matching sensor model and required cable run length. We will confirm the correct OD-162 configuration and provide a formal quotation.

Genuine, correctly matched components remain the safest path.

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