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HA0403T

BPA100
Benchtop Piezo Amplifier

User Guide

Original Instructions

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Summary of Contents for BPA100

Page 1: ...HA0403T BPA100 Benchtop Piezo Amplifier User Guide Original Instructions ...

Page 2: ...n 3 3 3 1 Connecting To The Supply 3 3 3 2 Fuses 4 3 3 3 Rear Panel Description 4 3 3 4 Connecting the Piezo Actuator 4 3 3 5 Front Panel Description 5 Chaper 4 Operation 6 4 1 Using the Amplifier 6 4 2 Typical Output Waveforms under Capacitive Load Conditions 6 4 3 Fans 8 4 4 Powering Down The Unit 8 4 5 Load Response 9 Appendices Appendix A Specifications 10 Appendix B Preventive Maintenance 11 ...

Page 3: ...ig 4 2 for frequency response data A built in protection circuit guards against short circuit or overload and a temperature sensing circuit protects against overheating of the unit With a maximum output voltage of 150 V the BPA100 amplifier is suitable for use with many of our Thorlabs piezo actuators chips and stacks It was designed for use in liquid dispensing applications which require the piez...

Page 4: ...iving ohmic resistive or inductive loads If this equipment is used in a manner not specified by the manufacturer the protection provided by the equipment may be impaired In particular excessive moisture may impair operation Spillage of fluid such as sample solutions should be avoided If spillage does occur clean up immediately using absorbent tissue Do not allow spilled fluid to enter the internal...

Page 5: ...on When siting the unit it should be positioned so as not to impede the operation of the rear panel power supply switch Warning Operation outside the following environmental limits may adversely affect operator safety Caution In applications requiring the highest level of accuracy and repeatability it is recommended that the amplifier unit is powered up approximately 30 minutes before use in order...

Page 6: ...ng Risk of Electrical Shock Piezo actuators are driven by high voltages Voltages up to 150 V may be present at the SHV connector This is hazardous and can cause serious injury Appropriate care should be taken when using this device Do not touch the pins of the SHV connector which carries the piezo output voltage A high voltage output may be active whenever the device is turned on The output value ...

Page 7: ...es dynamically as the load current and the junction temperature of the output devices changes The OVERLOAD LED reflects this gradual reduction by the intensity of its illumination Thus at the onset of current limiting the LED is lit up dimly and the brightness is increased as the output devices are nearer their operating limits As the OVERLOAD condition is related to the semiconductor junction tem...

Page 8: ...gh voltages Voltages up to 150 V may be present at the SHV connector This is hazardous and can cause serious injury Appropriate care should be taken when using this device Do not touch the pins of the SHV connector which carry the piezo output voltage A high voltage output may be active whenever the device is turned on The output value depends on the control input Persons using the device must und...

Page 9: ... peak 703 Hz sine wave into 10 4 µF capacitive load 150 V peak to peak sine wave 53 Volt RMS At 703 Hz the impedance of the 10 4 µF capacitor is 21 8 theoretical Calculated RMS current 2 43 A 3 150 V peak to peak 4 kHz square wave into 1 1 µF capacitive load ...

Page 10: ... off The oscilloscope waveform capture A below shows the typical behavior with 10 µF load capacitance connected and the output at 0 V After the power is switched off a small approximately 0 5 V spike is seen the output voltage rises to about 0 4 Volt and then gradually decays In most applications this behaviour can be ignored as the small residual voltages associated with it are negligible If the ...

Page 11: ...ier to a sinusoidal waveform at varying loads and frequencies is shown below Fig 4 2 Response of BPA100 Amplifier to Varying Loads and Frequencies 100 1000 10000 100000 0 40 80 120 160 10 4 µF 4 7 µF 2 2 µF 1 µF 0 47 µF 0 22 µF 0 1 µF BPA100 Typical Load Response Peak to Peak Voltage V Frequency Hz ...

Page 12: ...m Up Time Noise 0 5 mV RMS Bandwidth 20 Hz to 100 kHz Typical Piezo Capacitance a 1 µF to 10 µF Input Input Type Single Ended Input Impedance 10 k Input Voltage Range 2 V to 10 V DC Input Voltage for Full Range 10 V DC 2 Monitor Output BNC Output Voltage Range 3 V to 15 V Output Impedance 220 Minimum Recommended Load Impedance 10 k Short Circuit Overload Protection Yes Temperature Sensor Yes Scali...

Page 13: ...commended that only a D C test is performed Warning The equipment contains no user servicable parts Only personnel authorized by Thorlabs Ltd and trained in the maintenance of this equipment should remove its covers or attempt any repairs or adjustments Maintenance is limited to safety testing and cleaning as described in the following sections Warnings Disconnect the power supply before cleaning ...

Page 14: ...armful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be requ...

Page 15: ...o see right were sold to and are currently owned by a company or institute within the EC and are not dissembled or contaminated Contact Thorlabs for more information Waste treatment is your own responsibility End of life units must be returned to Thorlabs or handed to a company specializing in waste recovery Do not dispose of the unit in a litter bin or at a public waste disposal site USA Canada a...

Page 16: ...www thorlabs com ...

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