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Indikon Vibration Monitors measure vibration double amplitude (displacement) or vibration severity (velocity). There are two ways to sense vibration: Relative to the frame or bearing cap using proximity probes or Absolute which is relative to a point in space (i.e. seismic displacement pickups, velocity transducers or accelerometers). Any of these sensor signals can be processed, using the appropriate monitor, into a DC signal proportional to displacement (mils peak-to-peak) or velocity (inch per second peak). Axial Position Monitors measure the axial motion of a machine shaft caused by thrust clearance and further thrust bearing wear using proximity probes. In general, these probe measure distance and, therefore, can also be used to measure machine variables such as roter position and differential or shell expansion in gas turbines. Indikon Monitors are useful in providing an index of condition for rotating machinery. The readings of a vibration monitor reflect the status of variables that affect the performance of the machinery such as bearings, alignment and balance. The main reasons for applying monitors are to prevent or minimize the unexpected failure to losing the use of the machines and the cost of repairing them. The Indikon Vibration and Axial Position Monitors are normally being used for automatic alarm and or shutdown of machinery to minimize the damage done in a failure and/or to prevent catastrophic breakup at failure. They can serve as a powerful preventive tool when using permanently positioned probes, because then you can 'set them and forget them'. Once the vibration monitor is programmed with an alarm set point and a 'trip' set point (shutdown) and its probe is providing the input needed to measure vibration or position then it becomes an automatic detection and prevention system. |
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Operating Range - Vibration/Displacement - 0-3, 0-5, 0-10, 0-15 mils peak-to-peak / Velocity - 0-0.5, 0-1 inch/sec. Position / 0-10-0, 0-25-0. 40-0-40 mils Analog Output - 0-1 VDC, 0-5 VDC, 1-5 VDC, 0-10 VDC or 4-20 mA analog Time Delay - The Alarm and Trip Time Delay are fixed: 0.5, 1, 2, 3, 5, or 10 seconds Relay Rating - Relays are rated 5A at 28 VDC or 115 VAC (resistive) Contact Configuration - Form A= normally open, Form B= normally closed, Form C= available in both normally open or closed. HSP - Automatically increases setpoint levels by a factor 2-5 times during start-up - Prevents premature setpoint action. Ordering Information - To order any of the above monitors, in addition to the operating voltage and vibration/position range, you must provide the following - Analog Output, HSP Factor, setpoints time delay, rpm frequency response of filter and whether the alarm should operate as failsafe or normal. (energized or de-energized relay - normal is de-energized) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| For other related products see Probes, and Absolute Vibration Transducers | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Digital Torquemeter and
