An internally mounted accelerometer is the primary measuring element, the output of which is amplified and integrated to obtain an output proportional to velocity. 

The design ensures correct operation over a wide variation in supply voltage. Care has been taken to ensure reliable long term stability and accuracy without the need for periodic maintenance. 

The accelerometer and encapsulated electronics are mounted in a robust weatherproof cast aluminium housing with a rating of IP65. 

The entire head is mounted at the point of excitation using the locking nut to ensure correct alignment. 

The standard version has the accelerometer  isolated from ground. The units are thus suitable for use with PLCs and other applications where ground loops may be a problem.

Power Supply..........................10-32V DC 
Output Signal...........................4-20mA 
Typical Accuracy.....................±5% of span 
Fequency Range.......................10 -1000Hz 
Ambient Temperature..............-5°C to +60°C 
Mass ......................................510gm 
Plane of vibration......................90° to surface 
Housing....................................Weatherproof 
................................................epoxy coated 
................................................aluminium 
Mounting stud..........................Stainless steel 
................................................M12C
................................................M16C
Range options..........................0-10mm/sec 
................................................0-20mm/sec 
................................................0-50mm/sec