SEV 180 Series
Products
- Air Cooled Series
- Water Cooled Series
The SEV 180 Series of Shakers are matched with the DSA 4K and DSA 6K Series of Power Amplifiers. The Power Amplifier is assembled in a single 19-inch industrial rack of 30-unit height which houses the power transformer, high voltage rectification, power modules for the armature, field power supply, starters for cooling systems and oil pumps, along with all its control and protection assemblies.
Standard Features
- Magnesium Alloy Casting based Armature Structure
- Swivel mechanism in Bottom Cover
- Rocker based Suspension
- Trunnion mounted Shaker Body
- IP-67 Non-Contact Inductive Sensors for:
- Armature Position
- Armature Under / Over Travel
- Shaker Orientation
- MEMS Sensor based Air Flow Detection
- DC + Pneumatic based Auto-Centring of Armature
- Shaker Body Isolation using Air Bellows
- System Base Isolation using Rubber Pads
- 7” Coloured TFT Touch Screen based Interface
- 32-bit Microcontroller based Control Unit
- Digital Gain Control of 0.1% Resolution
- Digital Sine Generation of 0.1Hz Resolution
- Display of Armature Voltage & Current in True RMS
- Isolated Armature Voltage & Current BNC Output
- Display of Field Voltage & Current
- Galvanic Isolation of Analog Input & Output
- Sensing and Display of Shaker Orientation
- Auto Start, Stop, & Interlocking of Horizontal Slip Table
- Multiple User Configurable Interlocks
- Built-in Diagnostic Tool
Optional Features
- Shaker Body Isolation using Air Bellows
- Thermal Barrier for High / Low Temperature Operation
- PC based Power Amplifier Remote
- Explosion Proof for Lithium-Ion Battery Testing
- Field Power Regulation for higher Velocity
- Long Stroke for higher Displacement
- Pneumatic based Auto-Centring of Shaker Body
- Low Frequency Operation with Displacement Sensor
System Specifications
| Series | SEV 180 – DSA 4K | SEV 180 – DSA 6K |
|---|---|---|
|
System Performance |
||
|
Armature Diameter |
180 mm |
180 mm |
|
Sine Force (peak) |
400 kgf (3.9 kN) |
600 kgf (5.9 kN) |
|
Random Force (rms) |
400 kgf (3.9 kN) |
600 kgf (5.9 kN) |
|
Shock Force (peak) |
800 kgf (7.8 kN) |
1200 kgf (11.8 kN) |
|
Acceleration (Sine) |
80 g |
100 g |
|
Acceleration (Random) |
70 grms |
70 grms |
|
Acceleration (Shock) |
160 g |
200 g |
|
Velocity (peak) |
1.8 m/s | 2.7 m/s* |
1.8 m/s | 2.7 m/s* |
|
Displacement (pk-pk) |
38 mm | 51 mm** |
38 mm | 51 mm** |
|
Axial Resonance |
3200 Hz ±5% |
3200 Hz ±5% |
|
Useful Frequency Range*** |
DC to 3500 Hz |
DC to 3500 Hz |
|
Shaker Characteristics |
||
|
Moving Element Mass |
5 kg |
6 kg |
|
Internal Load Capability |
150 kg |
150 kg |
|
Suspension Axial Stiffness |
< 1 kg/mm |
< 1 kg/mm |
|
Suspension Cross-Axial Stiffness |
250 kg/mm |
250 kg/mm |
|
Stray Magnetic Field**** |
< 2.0 mT (20 gauss) |
< 2.0 mT (20 gauss) |
|
Cooling Air Flow |
700 cfm |
700 cfm |
|
Compressed Air***** |
4 bar (58 psi) |
4 bar (58 psi) |
|
Shaker Body Mass |
850 kg |
850 kg |
|
Amplifier Characteristics |
|
|
|
Power Output |
4 kVA |
6 kVA |
|
Total Harmonic Distortion****** |
Typically, 0.5% |
Typically, 0.5% |
|
Input Impedance |
> 10 kΩ |
> 10 kΩ |
|
Input Sensitivity |
1 VRMS to 80 VRMS |
1 VRMS to 80 VRMS |
|
Signal-to-Noise Ratio |
> 80 dB |
> 80 dB |
|
Power Efficiency****** |
> 92% |
> 92% |
|
Armature Insert Pattern |
Metric: 1 at Centre, 4 at 100 mm PCD, 4 at 141.4 mm PCD Inch: 1 at Centre, 4 at 4” PCD, 4 at 6” PCD |
Notes:
- *Peak velocity with reduced field power for Shock.
- **Long stroke option.
- ***Low frequency operation below 5Hz may require body locking or seismic foundation.
- ****150 mm above armature head.
- *****Dry compressed air to be provided by customer at installation site.
- ******Measured on pure resistive load.