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In vivo applications / Behavioural applications / Modular system components
MB DC Shocker, 1-channel, floating, isolated
DC Shocker is a research grade animal shocker. Its internal circuitry is based on a precision and fast feedback regulated constant current generator. This shocker equipment has three security isolation barriers. Its output is totally isolated (floating output) for the sake of the safety for the operator and the subject. Furthermore it has isolation from other electronic devices such as physiological stimulators that may be in use concurrently. Isolation is performed by using an isolated power supply transformer, an additional high voltage isolated floating power supply along with 4 kV optical isolation of the inputs from the control equipment.
The output current range (0 to 10.0 mA) is quite wide to cover nearly every research application. This output current range is suitable even from small mice to huge experimental animals (e.g. sheep, pigs). There is a precise 10-turn helical potentiometer to adjust the output current. It gives a great resolution to fine tune the level of the shocking current. The output circuit of the DC Shocker operates as a two-pole monopolar constant current square wave output.
DC Shocker is manufactured in two versions: modular and self-powered versions, this actual product is the modular version.
Modular version : as a part of the Modular Behavioral System. This version has no its own power supply. This version is powered by the Power Supply Module MBPS-3 of the Modular Behavioral System. In this arrangement (in the Modular Behavioral System) the time parameters are provided by the fully digital DC Shocker Controller and the constant current source is implemented in the DC Shocker equipment.
Self-powered version a: As stand-alone equipment. This version contains a built-in mains power supply. This version of the DC Shocker can be used as stand-alone equipment, connected to and controlled by any data acquisition system.
Security Rules
The output of the DC Shocker is able to produce extremely large current and voltage in relation to biological objects. From this virtue comes its disadvantage (which is by the way valid for all professional shocker devices): DC Shocker equipment in the case of unprofessional, incautious, or negligent usage can cause life threatening electric shock on the subject, or the person making the experiment (henceforward: the operator). Supertech Instruments manufactures all its products with the most modern protecting and security circuits. However these methods do not protect in the case of errors committed by the operator. Against human errors it is not possible to defend the user with the help of circuitry methods.
DC Shocker equipment is able to apply a maximum 120 V of pulsing DC voltage and 10 mA of pulsing DC current. These data far exceed the life threatening or lethal limit.
The shocking grids are big, free and accessible by hand. Never touch the shocking grid!
There is a much more detailed explanation of the safety rules in the User Manual of the DC Shocker . Please study it carefully before using the equipment!
Specifications / Technical Data
- DC constant current generator at the output
- Output waveform: monopolar square wave
- Range of the output current: 0 to 10.0 mA
- Accuracy of the output current: 1 %
- Output load range: 0 Ohm (shortcut) to open circuit (any load condition is allowed)
- Compliance (open circuit) voltage of the output current generator: 120 V DC
- Working (shocking) frequency: 0.0001 Hz to 5 kHz
- Minimal output pulse width: 100 microseconds
- Maximal output pulse width: unlimited
- Supply voltage: 13.5 V +/- 5%. Modular version of the DC Shocker DCS-x is supplied from the MBPS-x Power Supply unit of the Modular Behavioral System.
- Manual output current adjustment with a 10-turn helical potentiometer
- External TTL control or computer-controlled activity from the Modular Behavioral System (the two control sources may be used together, independently of each other)
- Control input: TTL active level is High (overvoltage protected, from 2 V to 40 V)
- Double security insulation from mains
- Double security insulation of output
- 4 kV opto-isolated TTL control input
Descriptions
DC Shocker is a research grade animal shocker. Its internal circuitry is based on a precision and fast feedback regulated constant current generator. This shocker equipment has three security isolation barriers. Its output is totally isolated (floating output) for the sake of the safety for the operator and the subject. Furthermore it has isolation from other electronic devices such as physiological stimulators that may be in use concurrently. Isolation is performed by using an isolated power supply transformer, an additional high voltage isolated floating power supply along with 4 kV optical isolation of the inputs from the control equipment.
The output current range (0 to 10.0 mA) is quite wide to cover nearly every research application. This output current range is suitable even from small mice to huge experimental animals (e.g. sheep, pigs). There is a precise 10-turn helical potentiometer to adjust the output current. It gives a great resolution to fine tune the level of the shocking current. The output circuit of the DC Shocker operates as a two-pole monopolar constant current square wave output.
DC Shocker is manufactured in two versions: modular and self-powered versions, this actual product is the modular version.
Modular version : as a part of the Modular Behavioral System. This version has no its own power supply. This version is powered by the Power Supply Module MBPS-3 of the Modular Behavioral System. In this arrangement (in the Modular Behavioral System) the time parameters are provided by the fully digital DC Shocker Controller and the constant current source is implemented in the DC Shocker equipment.
Self-powered version a: As stand-alone equipment. This version contains a built-in mains power supply. This version of the DC Shocker can be used as stand-alone equipment, connected to and controlled by any data acquisition system.
Security Rules
The output of the DC Shocker is able to produce extremely large current and voltage in relation to biological objects. From this virtue comes its disadvantage (which is by the way valid for all professional shocker devices): DC Shocker equipment in the case of unprofessional, incautious, or negligent usage can cause life threatening electric shock on the subject, or the person making the experiment (henceforward: the operator). Supertech Instruments manufactures all its products with the most modern protecting and security circuits. However these methods do not protect in the case of errors committed by the operator. Against human errors it is not possible to defend the user with the help of circuitry methods.
DC Shocker equipment is able to apply a maximum 120 V of pulsing DC voltage and 10 mA of pulsing DC current. These data far exceed the life threatening or lethal limit.
The shocking grids are big, free and accessible by hand. Never touch the shocking grid!
There is a much more detailed explanation of the safety rules in the User Manual of the DC Shocker . Please study it carefully before using the equipment!
Specifications / Technical Data
- DC constant current generator at the output
- Output waveform: monopolar square wave
- Range of the output current: 0 to 10.0 mA
- Accuracy of the output current: 1 %
- Output load range: 0 Ohm (shortcut) to open circuit (any load condition is allowed)
- Compliance (open circuit) voltage of the output current generator: 120 V DC
- Working (shocking) frequency: 0.0001 Hz to 5 kHz
- Minimal output pulse width: 100 microseconds
- Maximal output pulse width: unlimited
- Supply voltage: 13.5 V +/- 5%. Modular version of the DC Shocker DCS-x is supplied from the MBPS-x Power Supply unit of the Modular Behavioral System.
- Manual output current adjustment with a 10-turn helical potentiometer
- External TTL control or computer-controlled activity from the Modular Behavioral System (the two control sources may be used together, independently of each other)
- Control input: TTL active level is High (overvoltage protected, from 2 V to 40 V)
- Double security insulation from mains
- Double security insulation of output
- 4 kV opto-isolated TTL control input
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