The SKF CMPT Copperhead Transmitter Module (CTU) is a digital vibration and temperature transmitter. It can be used as part of a machinery fault detection system. The SKF CMPT CTU can make three types of vibration signal process analysis - SKF’s Acceleration Enveloping (gE), acceleration (g), or velocity (mm/s or inch/s). The type of vibration analysis is user selectable. The SKF CMPT CTU has analog output signals proportional to the processed vibration and temperature for connection to automation systems and SKF CMPT DCL alarm and display monitors. The SKF CMPT CTU can process vibration signals from the SKF CMPT family of sensors or other industrial accelerometers.

• SKF's Acceleration Enveloping vibration analysis is useful to identify repetitive impact-type vibrations generated by machinery faults due to loose components, gear faults, lack of lubrication, and rolling bearing damage.
• The acceleration vibration analysis is useful to monitor overall machinery and structural vibration, including machinery having journal bearings.
• The velocity vibration analysis is useful to identify overall machinery vibration levels such as looseness and unbalance and including machinery support by journal bearings.

The SKF CMPT CTU has unique features to monitor both normal speed and low-speed machinery (n <40 r/min) with Acceleration Enveloping. It can also monitor unbalance down to 120 r/min with a low-speed velocity filter.