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3171MR & 3171S Weatherproof Vibration Switches
3171MR & 3171S防风雨型振动开关
Vibration Switches
- Weatherproof and Explosion Proof
3171 型振动开关是一款低成本、高灵敏度的产品，用于保护旋转和往复式运动的设备。该产品触发
水平可调节，当设备振动强度超出正常运转的水平时，即可发出报警信号和/或启动停车保护电路，以避
免发生灾难性的故障。
本产品可以监测任意方向的振动。故障设备产生失衡力，从而引发振动（含基频和谐频）。当任何频
率上的振动强度超过触发水平时，开关就会动作。
3171/MR & S Weatherproof Vibration Switches
3171/MR Manual Reset
3171/S Electric Reset
3171/MR or by energising momentarily an electrical coil in the 3171/S model
振动开关工作原理：
- 振动开关垂直安装于受保护设备上，内置钢球受永磁棒吸引作用，坐在倒置的圆锥形底座内；
- 当设备振动的强度足够大时，钢球就会摆脱永磁棒的吸引，坠落并触发微动开关，从而发出报警
信号和/或启动停车保护电路；
- 3171 MR 型号振动开关，钢球和微动开关触发臂通过复位按钮手动复位；
- 3171 S 型号振动开关，除了手动复位，钢球和微动开关触发臂还可通过激活螺线管进行远程复位；
- 振动开关的触发水平，通过调节永磁棒和钢球之间的距离进行设定。
Vibration Switches
Vibration sensitive switches are used to protect rotating plant and reciprocating machinery. They are adjustable to operate above the normal running levels of vibration, activating alarm or machine shut-down circuits.The vibration switches have a low frequency response, which makes them ideal for detection of mass unbalance on most machines. They are inherently insensitive to high frequency components and those caused by external knocks, etc.
3171MR & 3171S Weatherproof Vibration Switches PDF Catalog
3171MR & S Weatherproof Vibration Switches
The type 3171 vibration switch is a low-cost, vibration-sensitive switch for the protection of rotating and reciprocating machinery. It is adjustable to operate above the machine's normal running levels of vibration, activating machine shut-down circuits and/or alarms.
Once operated the internal microswitch remains latched until reset. The switch is reset by depressing a reset button on the base of the 3171MR or by energising momentarily an electrical coil in the 3171S model.
规格参数：
Ease of installation on new or existing plant and machinery
Robust for industrial environments
Manual or remote electrical reset
SPCO or DPCO (manual reset) or DPST (with remote reset)
Must be vertically mounted as in diagram below - sensitive in horizontal, lateral and vertical planes
Electrical connections via M20x1.5mm cable entry (Models can be adapted for two cable entries)
Maintenance free operation
Models for operation in hazardous areas, see appropriate data sheet
Captive lid and fasteners
Two year warranty (from date of Invoice)
Accessories available
Blanking plug accessory for corrosion protection when mounted into the field un-wired
Version for hazardous areas available
Applications
The 3171 is ideal for use on rotating and reciprocating machinery (below 3000rpm) such as fans, centrifuges, compressors, pumps, turbines, motors and generators, vibrating conveyors, vertical and horizontal crushers and shakers.
3171 Ex d e (ATEX) Explosion proof Vibration Switches
3171 Ex防爆型振动开关3171 EExed
The type 3171 Ex vibration switch is a low-cost, vibration-sensitive switch for the protection of rotating and reciprocating machinery in hazardous areas.
3171 Ex d e (ATEX) Explosion proof Vibration Switches
3171 Ex防爆型振动开关 PDF Catalog
It is adjustable to operate above the machine's normal running levels of vibration, activating machine shut-down circuits and/or alarms.
Once operated the internal micro switch remains latched until reset.
Key Benefits
Ease of installation on new or existing plant and machinery
Robust for Industrial Environments
Manual reset
SPCO or DPCO Contacts
Must be vertically mounted as in diagram below - sensitive in horizontal, lateral and vertical planes
Electrical connections via M20x1.5mm cable entry (models can be adapted for two cable entries)
Captive lid and fasteners
Two year warranty
Accessories available
Models for operation in non-hazardous areas are available.
Applications
MR & S Weatherproof Installation and Operating Manual English
The type 3171 Ex vibration switch, with its low frequency response is ideal for detection of mass imbalance on most machines. It is inherently insensitive to high frequency components and those caused by external knocks, etc. The type 3171 Ex vibration switch is responsive to vibrations in all directions.
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