DEV 240 [1000 To 1500 Kgf]

System Description

Electro-dynamic Shakers simulate real-world environments to investigate dynamic endurance and ascertain reliability in select fields of vibration testing.

This medium range force rating are specially designed for testing of wide range of products, be it electronics, automobile and defence applications.

System Description

As a standard configuration, the shaker is supported on a frame with a trunnion assembly for 90 degree till. Shaker itself has pneumatic body isolation and is force-air-cooled by a centrifugal blower system which sucks air through the evenly spaced air guide path that is interlocked with the amplifier console for operational safety.

The shaker's electromagnet and moving element are energized by the direct current and alternating current supplies respectively generated and are electronically interlocked to the power amplifier drive console.

The solid-state Power Amplifier is an intelligent microcontroller based console in a movable rack version. It has a feather-touch user-friendly interface at the front panel to drive the respective Electro-dynamic Shaker.

The PC based Remote Link Module can be optionally used to remotely operate the complete vibration system. It is based on a chip-board microcontroller and is driven by software commands to communicate identical functions of the amplifier's control panel e.g. Gain, FPS, Cooling, Start-up and Shutdown. All the critical parameters like output voltage, current, temp., and all system interlocks are displayed simultaneously.

Salient Features

• Trunnion mounted shaker
• Compatible with any Digital Vibration Controller
• Low weight and robust Armature
• Optical Auto centering
• Low Noise Cooling Blower
• Microcontroller based fault diagnosis

Technical Specifications	DEV 240-DPA 12K	DEV 240-DPA 15K
System Performance
Armature diameter	240 mm	240 mm
Sine force (peak)	1000 Kgf (2200 lbf)	1500 Kgf (3300 lbf)
Random force (rms)	1000 Kgf (2200 lbf)	1500 Kgf (3300 Ibf)
Shock force	2000 Kgf (4400 Ibf)	3000 Kgf (6600 Ibf)
Acceleration (Sine)	75 'g'	90 'g'
Velocity (sine peak)	1.6m/sec	1.6m/sec
Displacement (Pk-pk)	38 mm (1.5 Inch) /51mm(2 Inch)	38 mm (1.5 Inch) /51mm(2 Inch)
Axial Resonance (±5%)	3000Hz	3000Hz
Useful Frequency range	5 to 3200 Hz	5 to 3200 Hz
Protection Interlocks	Mains input Over & Under Voltage, Over Current, Loss of Input Phase, Over Temperature Amplifier &   Shaker, Cooling flow, Field fail, User safety interlock or if specifically required by customer.
Shaker Characteristics
Moving element mass	14 kg	17 kg
Internal load capability	230 Kg	250 Kg
Suspension axial stiffness	5.5Kg/mm	5.5Kg/mm
Suspension cross-axial stiffness	300 Kg/mm	300 Kg/mm
Stray magnetic field (150mm above table)	10 gauss	10 gauss
Cooling air flow (blower system)	1200 cfm	1200 cfm
Compressed air (utility required at site)	6 Bar	6 Bar
Shaker body mass	1600Kg	1600Kg
Dimensions (L x W x H) (mm)	1010 x 670 x 900	1010 x 670 x 900
Amplifier Characteristics
Power output	80V,150A	80V, 180 A
Total harmonic distortion (At resistive load)	Typically 0.5%	Typically 0.5%
Input impedance (Nominal)	10 k Ohm	10 k Ohm
Input sensitivity	4 V rms Compatible with all standard controllers
Signal-to-Noise ratio	> 75 dB	> 75 dB
Power efficiency	>90%	>90%
Safety Norms
Protection	Integral protection to prevent the output devices working beyond their specification limits
EMC	EN50081-2 Emissions and EN50082-2 Immunity