M3003, M3008 & M3007 Slipswitch
- ATEX and IECEx Zone 20 (Dust) and Zone 0 (Gas) Approved
- Signals underspeed for bucket elevators, conveyors and all rotating machinery
- Inductive proximity sensor in 30mm diameter housing, which detects rotating metal target
- 20% underspeed set point
- 2 wire & 5 wire versions available
- Easy and reliable calibration procedure by using a magnet
- Non-contacting & failsafe
- Compatible with the Whirligig speed sensor mount
Description
The
M300 Slipswitch is an easy-to-use inductive proximity shaft speed
monitoring device with an adjustable 0 – 30 second start-up delay, all
housed in a 30 mm diameter moulded body. The self-contained unit has a
single set point, which signals when the shaft speed has dropped by 20%
of normal running speed. It is used for detecting dangerous slow down
and underspeed conditions on conveyors, bucket elevators, air locks,
mixers, fans, grinders and many other machines.
No connection is necessary between the sensor and the equipment being
monitored. The proximity sensor detects a stud or bolt mounted on a
shaft, or other suitable target. Ideally, the target should be of
ferrous metal, but non-ferrous metal will be detected at a shorter
range. Maximum range of ferrous targets is 8 mm (5/16”) and for
non-ferrous targets is 5 mm (6/16”), assuming a 20 mm (3/4”) diameter
target. Smaller targets may be used but operating distances will be
reduced.
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