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Skid Mounted Pump - Vibration Monitoring for Motor Driven Machinery with Rolling Element Bearings
Last Updated: 05/23/2017
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Machinery Applications Include: Motors, Pumps, Mixers, Agitators, Blowers, Compressors, Skid Mounted Machinery and Chemical Injection Skids, Condition Monitoring, Vibration Monitoring, Protection System, VMS.

A simple and effective Machine Vibration Monitoring Protection System for Motor Driven Machinery with Rolling Element Bearings can be provided by installing STIís CMCP420VT Vibration Transmitters at each of the four (4) bearing locations (Max). A lower cost alternative is available by mounting a single CMCP420VT Vibration Transmitter on each machine case (Min) to protect the overall machine case from catastrophic failure. It is recommended that the Vibration Sensors be mounted in a horizontal direction as close to the bearings as possible where there is good transmission of the vibration energy to the machine case. Alarm levels can be set by referring to ISO-10816 Severity Chart.

Protection System BOM using Local PLC or Control System:

The Protection System using the CMCP420VT Loop Powered Velocity Transmitter BOM (Bill of Materials) provides a simple low cost approach to Vibration Monitoring making use of the machines local PLC or Control System for alarming and trending of the vibration values. STIís CMCP420VT Loop Powered Vibration Transmitters are mounted to the machines bearings or case and the 4-20 mA Output proportional to Velocity signal is wired to the local control system. Alarms and Time Delay are then programmed in the PLC/Control System.

Protection System BOM (Vibration Switch):

The Stand Alone Protection System BOM provides all the features of the above Transmitter System with the addition of an Alarm Module for standalone operation. The Alarm Module provides two (2) programmable alarms (alert & danger) with 5 Amp Relays, programmable alarm time delay, LCD Display in engineering units, LED Alarm indication and a 4-20 mA output. An internal Push Button for alarm reset and a terminal for wiring a remote reset is also provided. The CMCP-EVS is a complete system simply supply 24 VDC.

Protection System BOM (API-670):

The Stand Alone Protection System BOM meets the requirements of API-670 and provides all the features of the above Protection System with the addition of Relay Modules and Displays. OK, Alert and Danger Alarms and 5 amp Relays are provided for each channel. The ability to select alarm delay, trip multiply, latching or non-latching relays are provided. Terminal for remote reset is also provided. The CMCP5304 is a complete system simply supply AC line power and connect sensors.

Recommended Installation Accessories (All Systems):

The following are STIís recommended Installation Accessories. Quantities vary as shown depending on the BOM selected above. More details and instructions on Transmitter Installation can be found under our Application Notes at this link:

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