DEV 440 [4000 To 6000 kgf]

System Description

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

This low sturdy force rating are specially designed for testing of wide range of products, be it electronics, automotive and defence applications. This series shaker generates high velocity which is required for shock applications.

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.

System Description

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
• Low Noise Cooling Blower
• Optical Auto centering
• Microcontroller based fault diagnosis

Technical Specifications	DEV 400-DPA 48K	DEV 400-DPA 62K	DEV 400-DPA 70K
System Performance
Armature diameter	440 mm	440 mm	440 mm
Sine force (peak)	4000 Kgf (8800 lbf)	5000 Kgf (11000 lbf)	6000 Kgf (13200 lbf)
Random force (rms)	4000 Kgf (8800 lbf)	5000 Kgf (11000 lbf)	6000 Kgf (13200 lbf)
Shock force	8000 Kgf (17600 Ibf)	10000 Kgf (22000 Ibf)	12000 Kgf (26400 Ibf)
Acceleration (Sine)	80 'g'	90 'g'	100 'g'
Velocity (sine peak)	1.8m/sec	1.8m/sec	1.8m/sec
Displacement (Pk-pk)	51mm(2 Inch)	51mm(2 Inch)/63mm(2.5Inch)	51mm(2Inch)/63mm(2.5Inch)
Axial Resonance (±5%)	2100Hz	2100Hz	2100Hz
Useful Frequency range	5 to 2400Hz	5 to 2300Hz	5 to 2200 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	50kg	56kg	60kg
Internal load capability	500 Kg	600 Kg	600 Kg
Suspension axial stiffness	18Kg/mm	18Kg/mm	18Kg/mm
Suspension cross-axial stiffness	500 Kg/mm	500 Kg/mm	500 Kg/mm
Stray magnetic field (150mm above table)	10 gauss	10 gauss	10 gauss
Cooling air flow (blower system)	2200 cfm	2200 cfm	2200 cfm
Compressed air (utility required at site)	6 Bar	6 Bar	6 Bar
Shaker body mass	5400Kg	5500Kg	5800Kg
Dimensions (L x W x H) (mm)	1600 x 1000 x 1300	1600 x 1000 x 1300	1600 x 1000 x 1300
Amplifier Characteristics
Power output	125V,385A	130V,480A	140V, 500A
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