Conveyor Belt Under Speed Switch

The Ramsey Model 60-23P and 60-23PX Under Speed Switches provide a low-cost, dependable, versatile and simple means of monitoring the rotational velocity of a shaft or other rotating equipment. The Model 60-23P features one-piece unitized construction. The electronics and output contacts are housed in the same unit with the detector.
Only two bolts are required to mount the unit. The non-contacting proximity-type detector has no moving parts. Once the simple installation is completed, the device is virtually maintenance-free.
Two 10-second time delays add important benefits to the package. The first delay prevents nuisance alarms. The second
delay accommodates an alarm to normal condition after the under speed status has been corrected.
The under speed switch is housed in a gasketed weather-tight polyammide/fiberglass enclosure (allowing exposure to harsh environments), or a cast aluminum NEMA 9 enclosure for explosion-proof applications. The unit is ideally suited for a wide variety of industrial applications where the need to monitor for under speed or slippage conditions exist. It may be used on conveyor belts, bucket elevators and other types of rotating equipment.
Operation
The Model 60-23P Under Speed Switch monitors speed by sensing a ferrous element attached to the rotating shaft or equipment. The detector generates impulses from the ferrous element and closes alarm contact when the time between impulses is greater than the time adjusted by the setpoint. The unit operates on the number of impulses received rather than actual revolutions. Low speed range may be enhanced by increasing the number of ferrous elements on the rotating shaft.

Recommended for:
Conveyor belts
Bucket elevators
Other types of rotating equipment
Industrial applications

Conveyor Protection Switches 
 
Deviation switch for belt conveyor protection
Specifications:
1. Belt sway protection
2. Stop the machine in case of deviation
3. Heavy duty rugged design
4. Weatherproof Type.: IP67

Deviation switch Belt Sway Switch is a protective switch for detecting the meandering (sway or deviation) of belt conveyors, and sends out an alarm signal and an emergency stop signal.

Suited to be used for belt break age prevention and ore falling prevention due to the belt sway. Widely used in iron and steel, cement and chemical plants, thermal power plants, etc., since it is essential for safety operation of belt conveyors.


= FEATURES =
* High reliability microswitches, lubircateless ball bearings, etc. For long term stable operation and safety.
* Two step signals for alarm (ON) and stop (OFF).
* Explosion-proof available as option.

Reset mode: Manual
Number of contacts: 1a1b
Contact capacityAC: 90-380V, 5A
Switch angle Level 1: 20°
Switch angle Level 2: 35°
Actuating Force: 3.4-5.4N (0.35~0.55kgf)
Ambient temperature: -20 ° C ~ +60 ° C
Weatherproof Type.: IP67
Color code: Y100M20C70BL50
Cable connection: 8~12mm

 

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