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12 Cards in this Set
- Front
- Back
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What are the electrodes coming from the patient plugged into?
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The electrode board or sometimes called the jackbox
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What is the main sensitivity control?
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the main sensitivity has step settings that may range from 1uV/mm to 150 mV/cm
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What does the sensitivity equalizer do?
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this is a continuous control that enables the technologist to set precisely the sensitivity in each channel
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What is a multiplier do?
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This enables the technologist to change the overall sensitivity of any individual channel by a constant factor. eg by a factor of 100
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What are the pens called?
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ink-writing galvanometers
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The input cable is connected to what?
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The electrode selector
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What does the electrode selector do?
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it connects the the electrodes to the amplifiers. There are switches that are arrainged in pairs corresponding to 2 inputs of each amplifier (G1 and G2)
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The selection of a pair of electrodes using the electrode selector is called what?
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A derivation
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What do we call a specific set of derivations?
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A montage
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What is used to change amplifier inputs during a montage change?
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A master electrode selector
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What is a calibrator?
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a device that sends a precise preselected voltage to all inputs/outputs to test the identical working conditions of the machine
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What is the electrode test?
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It measures the total resistance of the 2 electodes under test
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