PROTECT YOUR EQUIPMENT WITH TORQ SPEED SWITCH
UNDERSPEED AND OVERSPEED MODELS FOR HAZARDOUS LOCATIONS

The TORQ Speedetex® XES Electronic Speed Switch is used in bulk material handling/processing systems to monitor speeds of belt conveyors, screw conveyors, bucket elevators, rotary feeder shafts, rotating drums and other types of rotating machinery to protect elevators, feeders and conveyors from speed related damage resulting from broken belts, overloads, or belt slippages.

SPEED SWITCH APPLICATIONS:

SPEED SWITCH FEATURES:

• Threaded enclosure provides total environmental suitability for use indoors or outdoors in hazardous, non-hazardous, and wet or dusty industrial environments, as well as protection from falling materials
  
  
• Integral cast mounting feet and 1" conduit opening allow ease and flexibility of installation
  
  
• Threaded cover permits convenient access to interior for ease of installation, calibration, and maintenance
  
  
• Ramped cover ears enable easy bar loosening but not overtightening
  
  
• Neoprene o-ring gasket provides water tightness, and helps prevent the cover from vibrating loose
  
  
• Sealed shaft bearings are lifetime lubricated for long reliable performance

Class I, Groups C, D
Class II, Groups E, F, G
Class III
NEMA 3, 4, 7CD, 9FG, 12

SWITCH OPERATION:

This rugged, completely self-contained switch is a rotary shaft speed detector and tachometer. It will electronically detect either underspeed or overspeed. This is achieved by setpoint selection done directly thru pushbuttons and is displayed on the LCD readout. Calibration is accomplished without driving the unit. The actual shaft speed can be displayed on the LCD by a simple push of a button.

When the shaft speed on a piece of equipment exceeds or falls below the setpoint speed, change is immediately detected and output is provided via relay contacts to actuate motor contactors, audible alarms, warning lights, PLC's etc. Maximum response time is the time required to rotate 1/16 of a turn at the set speed for a standard unit, or 1/60 of a turn for the high response option, after the shaft passes through the set speed. The output condition is displayed as "ON" or "OFF". When "ON" is displayed, the driven speed exceeds the overspeed setpoint, or is below the underspeed setpoint. The output relay is de-energized in this condition and the "Alarm" contact (N.C.), closed in the output relay. The XES also falls into this condition under loss of power providing the logic that indicates "Alarm" under power failure to the XES.

In the underspeed mode at start up, there will be an 8 second pre-start delay (20 seconds @ 1/60 turn response option) before the switch operates, to allow for equipment start up. If the pre-start delay time is exceeded before the setpoint speed is reached, the unit will go into alarm. The output relay and the N.C. contacts will be closed.

Custom Modifications available such as special shaft machining, diameters, mounting, finishes, supply voltage, etc.

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Torq Corporation 32 West Monroe St. Bedford, OH 44146 (440) 232-4100 Email: info@torq.com