Electrical Test Instruments PI-2500-G2 & PI-5000-G2
Section II - Detailed Description
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Page II-7
POD also calculates a “virtual” temperature based on overload duty cycle limits
as indicated in the specifications. The ten bar graph LEDs correspond to tem-
peratures of approximately 80 to 280 degrees F, with about 20 degrees per bar.
Testing is allowed up to a reading of two red bars but will then be inhibited until
temperature cools to no more than four yellow bars.
Coarse Tap Switch: This rocker switch selects the coarse tap. The unit powers up
in tap 1. Pressing the switch briefly UP or DOWN will raise or lower the tap by
one. Holding it will change taps about one per second.
Coarse Tap Indicator: This seven-segment red LED indicates tap position from 1
to 9.
Vernier Indicator Bar graph: This ten-segment red LED indicates approximate
Vernier position. 0 or 1 segment lit indicates minimum position, and 9 or 10 seg-
ments lit indicates maximum position.
Vernier Adjust Switch: This rocker switch adjusts the Vernier position. Pressing
it briefly UP or DOWN causes the Vernier to move by a very small increment, for
fine control. Holding it for about a second will cause the Vernier to move very
quickly, for rapid fine adjustment.
Figure II-2
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Indicator Control Panel
