BSL PRO Software Guide - Biopac

Acquisition Functions 141Usage Guidelines & Setup Summary for BSLSTM Output ControlHUMAN SUBJECT SAFETYBefore using the stimulator on human subjects, it is very important to limit theenergy the stimulator outputs. For optimal safety:Before powering on the BSLSTM stimulator, set the voltage level to zero byrotating the LEVEL knob on the front of the BSLSTM fully counterclockwise.Use BIOPAC HSTM Series Probes. You MUST use these probes order to limitthe energy the stimulator can output.Never create an electrical path across the heart.Never use on subjects with pacemakers.Read this manual and the BSL Hardware Guide to become familiar withStimulator operation.Connect the BSLSTM Stimulator to the MP UNIT and power on both units. (For instructions on how to connect theBSLSTM to the MP UNIT Acquisition Unit, refer to the BSL Hardware Guide.)Connect the Stimulator Trigger cable to the Analog Out port of the back of the MP UNIT.Connect the Stimulator Reference Output cable to an Input Channel on the front of the MP UNIT. This channel willbe set up in Step 3 as the Stimulator Reference Channel.The Reference pulse has a fixed Pulse width of 15 milliseconds, so chosen so that the Sample Rate of the recordingmay be as low as 100 samples/second and still capture the Reference pulse.Before powering on the BSLSTM stimulator, set the voltage level to zero by rotating the LEVEL knob on the frontof the BSLSTM counterclockwise all the way to the left.Launch BSL PRO software to a new data acquisition window.Confirm that Markers are activated.Markers are activated by default. If not activated for a given recording, choose Display> Show>Markers.Set up the Stimulator Reference Channel. This is the Analog InputChannel on the front of the MP UNIT that receives the StimulatorReference Output cable from the back of the BSLSTM.Choose MP UNIT > Set up Channels. This will generate a Set upChannels dialog.Select the Acquire, Plot and Enable options for the analog channel tobe set up as the Stimulator Reference Channel.Click Presets and scroll to select “Stimulator (0-10V)” or “Stimulator(0-100V)” to match the Range switch setting on front of the BSLSTM.Click View/Change Parameters. This will generate an Input ChannelParameters dialog.Read the entire Stimulator section of this manual and familiarizeyourself with the unit and its options before changing any presetparameters.You may set the Gain and other input parameters as desired.Click OK to accept the parameters.Close the Set up Channels window.Adjust the voltage output of the stimulator by using the Level control on the front of the BSLSTM.Rotate the Level knob clockwise to increase and counterclockwise to decrease, reading the voltage in theBSLSTM’s digital display.Stimulator Safety FeaturesThe stimulator cannot operate unless its Output Control panel is open.The Pulse ON/OFF Switch on the Stimulator Output Control panel must be OFF in order to open and configureStimulator Preferences.If the Stimulator Output Control panel (or the BSL PRO application) is closed in the middle of a pulse trainwhile the stimulator is running, the stimulator will shut down and the pulses will stop.If another data acquisition window is activated, the stimulator will stop and remain OFF unless restartedusing the parameters associated with the new data window. The only exception is that if the stimulator is