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HUNTRON TRACKER 2000
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Neets Module 16-Introduction to Test Equipment
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5-23 Table 5-3.—Front-Panel Controls and Connectors NO. NAME DESCRIPTION 1 HORIZ control When adjusted this controls the horizontal position of the CRT display. 2 VERT control When adjusted, this controls the vertical position of the CRT display. 3 POWER on/off and INTENSITY control switch When this is rotated clockwise, the power is turned on. Further adjustment of the switch controls the intensity of the CRT display. When it is rotated fully counterclockwise, the power is turned off. 4 TRACE ROTATE control When adjusted, this controls the trace rotation of the CRT. 5 CRT display This displays the signatures produced by the unit. 6 RANGE selectors These are push buttons that are used to select one of four impedance ranges: LOW, MEDIUM 1, MEDIUM 2, and HIGH. 7 AUTO selector This push button, when selected, initiates automatic scanning of the four ranges from low to high. The speed of the scanning is determined by the RATE control (item 14) 8 CHANNEL A selector This push button, when selected, causes channel A to be displayed on the CRT. 9 CHANNEL A test plug This is a fused test lead connector that is active when channel A is selected. All test lead connectors accept standard banana plugs. 10 ALT selector When selected, this push button causes the unit to alternate between channel A and channel B. The speed of this is determined by the RATE control (item 14). 11 COM test plug This test lead connector is the instrument common to and the common reference point for channel A and channel B. 12 CHANNEL B selector This push button, when selected, causes channel B to be displayed on the CRT. 13 CHANNEL B test plug This is a fused test lead connector that is active when channel B is selected. 14 RATE control This controls the channel alteration and/or the range scanning. 15 G1 and G2 plugs These are used for the pulse generator output test leads. 16 WIDTH control This controls the duty cycle of the pulse generator. 17 LEVEL control This controls the amplitude of the internal pulse generator. 18 PULSE GENERATOR selectors These push buttons are used to select the output modes of the pulse generator: positive (+), negative (–) or PULSE/DC. 19 FREQUENCY selectors These push buttons are used to select one of the three test signal frequencies: 50/60 Hz, 400 Hz, 2000 Hz. Cathode-Ray Tube (CRT) Display The CRT display (figure 5-19) is used to view the signature of the component under test. The display has a graticule consisting of a horizontal and vertical axes. The horizontal axis is used to represent voltage with the vertical axis being used to represent current. The axes divide the display into four quadrants. Each quadrant displays a different portion of the signature for the component under test.






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