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Instruction manual for MACHsense-R - MSR1600
1MZB100400
A
20(31)
We reserve all rights in this document and in the information contained therein. Reproduction, use or disclosure to third parties without
express authority is strictly forbidden.
© Copyright 2017 ABB
PROPRIETARY AND SECRET INFORMATION
Ensure to understand and follow the instructions and information of adhesive and
cleaning products for safe and correct use.
Make sure to use personal safety equipment and make sure the area is well
ventilated.
7.3 Mounting of sensors
Mount the accelerometers in the mounting pads by screwing the sensor into the pad.
Mounting torque: 2.7 to 6.8 Nm
7.4 Additional information on mounting
There are alternative mounting techniques for mounting sensors, if it is not possible to use these glued
mounting pads. Please consult ABB for alternative recommendations for mounting.
The point of measurement is chosen so that point of measurement and sensor are mechanically as close
as possible to each other. The sensor should be mounted as close as possible to the bearing and pointing
towards the shaft centreline.
·
High-frequency oscillation loses some of its energy in the face of the interface. Therefore, the
measuring point has to be chosen in such a way that the point of measurement and the sensor
have minimal interfaces.
·
Vibration of rotating equipment is transferred to the bearings through the body. So, the
measurement points should be selected as close as possible.
·
The sensor mounting point has to be chosen correctly so that the space available allows for the
sensor installation and replacement.
7.5 Wiring and connection of sensors
Quick connector
1. Connect the quick connector to each sensor and put the cable to the DAU.
2. After mounting the sensor, the cable should be anchored to reduce stress at the cable ends and
to prevent false signals due to cable vibration and slapping. Cables that are allowed to have
excessive motion will eventually result in cable metal and insulation fatigue. The fatigue causes
wire strand breakage, insulation failure, and results in noisy or broken connections.
3. Use cable ties or clamps to secure cables without being left hanging loose. When securing the
cable, leave enough slack cable to allow free movement of the accelerometer on the vibrating
machinery. These techniques for cable anchoring are extremely important for machinery with high
displacement amplitudes.
