When Should I Use a Signal Conditioner with a Proximity Probe System?

The CTC SC300 Series Signal Conditioner can be used with any PRO Line Proximity Probe Driver with voltage output to provide a 4-20 mA digital output signal proportional to peak-to-peak vibration. This can be an excellent, cost-effective solution for end users who prefer a simplified process signal as input for the local machinery protection or control system.

This provides a very similar output as CTC's PRO Line 4-20 mA Radial Drivers. As a result, CTC typically recommends for most new systems purchasing 4-20 mA current drivers instead of a proximity probe system plus signal conditioner, to save costs and eliminate unnecessary equipment.

The use of SC300 Series Signal Conditioners is ideal for cases where there are already voltage probes installed (or in stock) and the end user would like to get a 4-20 mA output, or where specialty configurations are desired.

Utilizing an SC300 Series Signal Conditioner will allow for additional configuration options to modify the 4-20 mA signal, including:

• Selecting a specific frequency range to monitor
• Additional scaling options
• Alternative methods of measuring the severity of vibration, like Pk-Pk, Peak, RMS, etc.
• Customized output smoothing features to avoid false alarms and trips

Shown Above:

SC317 Series Signal Conditioner
USB Configurable, SC300 Series Signal Conditioner for use with Proximity Probes

DD1001 Series Proximity Probe Driver
8 mm Driver for Eddy Current Probes, with Voltage Output

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CTC is the world leader in the design and manufacture of industrial accelerometers and piezo velocity transducers, 4-20 mA vibration sensors, and proximity probe sets, as well as all related mounting hardware, cables and connectors, and junction boxes. Our products enable efficient vibration monitoring for predictive maintenance in a wide variety of industries. Industries served include cement, mining, petrochemical, food & beverage, auto, steel, wind, paper & pulp, power generation, water & wastewater treatment, pharmaceutical, hospitals, bottling, and more. Our mission is to offer the widest variety of accelerometers and vibration hardware products, which are compatible with data collectors and online monitoring systems, as well as the tools for installation.

The CTC product line features vibration analysis hardware for heavy industry. All CTC products are backed by our unconditional, lifetime warranty. If any CTC product should ever fail, we will repair or replace it at no charge.

CTC’s PRO Line offers the world’s most durable and reliable Proximity Probe Sets including drivers, probes, extension cables, and driver enclosures for 24/7 protection of critical machinery in the most demanding industrial environments. CTC PRO Line Proximity Probe Sets are compatible with all major data collectors. PRO Line products are covered by our best-in-class lifetime warranty on material and workmanship.


The TMP Line features vibration analysis hardware for research and development. All TMP products are backed by a five-year warranty on materials & workmanship for standard sensors and a two-year warranty for all accessories, cables, connectors, and custom & private-labeled products.

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Stock, built-to-order, and private-label products qualify for free cancellation only if canceled within 24 hours of order entry. 

After 24 hours of order entry:

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