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Industrial Accelerometers by CTC


Industrial Accelerometers

 

  • Made in the U.S.A.
  • Best Warranty in the Industry
  • Fast Delivery
  • Easy Customer Service
  • Full range of models and accessories

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Introduction

Connection Technology Center, Inc. - CTC - offers the widest variety of high quality accelerometers, vibration sensors cables and connectors for industrial use in condition monitoring and predictive maintenance applications.  CTC is a family owned company founded in 1995 just outside Buffalo, NY.  Since then, it has outgrown its facilities and moved near Rochester, NY where it continues to manufacture its products.

Warranty

CTC offers the most comprehensive warranty in the industry.  The CTC standard product line carries an Unconditional Lifetime Warranty which is essentially a "no questions asked" policy.  The Pro line has a Lifetime Materials and Worksmanship Warranty.  More details on warranty.

Design

All CTC accelerometers feature a welded stainless steel construction for survival in harsh factory environments. A dual case design shields the sensing element from RFI & EMI interference. PZT ceramic sensing elements are utilized to provide the highest signal to noise ratio available, which is critical for use with data collectors, which often integrate an acceleration signal to velocity. Low Frequency noise (ski slopes) are avoided by utilizing an accelerometer with a low noise PZT ceramic sensing element. Shear mode element construction is utilized in low frequency models, which virtually eliminates erroneous output due to thermal transient interference. Two pin MIL spec connectors are used to carry the signal output from the accelerometer, protecting the shielding and hermetic sealing of the accelerometer. To ensure the highest quality product, 100% of CTC sensors are individually helium leak tested.

General Purpose

These sensors satisfy common industrial applications.  Most are the usual 100 mV/G sensitivity.  Various connector and mounting versions are offered. 

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Piezovelocity

Velocity is often times the best compromise between acceleration (for high frequencies) and displacement (for low frequencies).  A velocity sensor is useful for analyzers and readouts that cannot convert from acceleration to velocity.  Piezovelocity sensors are piezoelectric accelerometers with built-in analog integrators.  The output signal is then proportional to velocity (mV/inches/sec) instead of acceleration (mV/G).

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Biaxial and Triaxial

The basic accelerometer element measures vibration along one axis only.  While multiple sensors can be mounted to monitor multiple directions (e.g. one for radial and another for axial), it may be necessary or convenient to combine two or three sensing elements into a single case and cable.  The cables for these multi-axis sensors usually terminate in a pigtail with a separate connector for each axis.  Multi-axis sensors also speed up walk around data collection.

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High Frequency

High frequency accelerometers are used on machinery with gear mesh or small bearings such as high-speed machine tool spindles and compressors. They are also necessary for measuring spikes and true peak values of high crest factor vibration.  These sensors are capable of measuring frequencies up to 150,000,000 CPM or 25,000 Hz.

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Low Frequency / High Sensitivity

Low frequency measurements and low levels of vibration are closely related. Acceleration levels decrease at low frequencies. In order to have adequate voltage signals at the acquisition equipment, low frequency sensors may have greater output sensitivity (up to 1,000mV/g) than general-purpose sensors. Additionally, the low-end frequency cut-off is improved (down to 6 CPM or 0.1 Hz) in order to read slow speed vibration signals such as those from slow rolls.

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High Temperature

Due to the internal electronics, standard accelerometers are limited to approximately 250 F/121 C.  Special electronics can be used to extend the limit to 325 F/162 C.  For even higher temperatures, the electronics are placed outside a short distance from the case and special cables are used.  Sensors in this configuration are capable of 650 F/ 343 C.

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Dual Vibration & Temperature Output

ctc-dual-output-accelerometerThese dual output sensors are useful for those situations where users wish to know the temperature of the machine where the vibration is measured such as the dryer section on a paper machine.

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Wireless Sensors

These sensors transmit the raw time signal via Bluetooth to a PC or tablet.  The internal battery lasts up to 4 years (when transmitting twice a day).  It can be set to sample as fast as 40,000 samples per second.  A ruggedized receiver tablet is also available.

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Junction Boxes

CTC offers a wide variety of junction box solutions to allow monitoring of remotely mounted vibration sensors, which otherwise would be restricted to human access due to safety considerations.  Also offered is a selection of low cost cable termination boxes which allow multiple measurement points to be routed to a cost effective location to gather data. Many CTC junction boxes offer continuous output options for direct interface to online monitoring systems.

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Cables & Connectors

CTC offers a variety of cables and connectors for both permanent and portable applications.   CTC’s permanent mount cable options are available with cable jacketing of polyurethane, Teflon, stainless steel armor protected and stainless-steel braided armor.  Connectors with Ingress Protection ratings ranging from IP66 to IP68 are available.  Cable and connector options are available with two, three, and four conductors for multiple sensor applications.

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