Baker Instrument Company D12R User Manual page 12

Instrument Overview
10) Vertical position
This control adjusts the up or down positioning of the surge wave pattern. Optimum
positioning is usually on the center of one major graticule line below center for surge testing.
11) Horizontal position
This control adjusts the side to side positioning of the surge wave pattern. A trace beginning
at the far left is suggested for surge testing.
12) Function selector
This control selects the type of test to be performed: Surge Testing, HiPot testing with 4
different current sensitivities, resistance testing for each of the three leads, AT101 testing,
and auxiliary/power pack surge/HiPot testing.
AT101: This position is used when using the Baker Instrument Company, an SKF Group
Company, Model At101 Bar-to-Bar Armature Test Accessory. Note: The Zero Start Interlock
is disabled when this function is selected and the Footswitch is depressed.
AUX: The auxiliary position is for use with a 30kV Power Pack. The display will also show
wave patterns from accessory units in this position.
Surge: This position selects the Surge Test. The name of the test and the microseconds
per division measured is displayed on the lower portion of the CRT for reference. A digital
readout for the peak voltage of the test is also displayed in the upper right portion of the
screen for reference.
HiPot- uA/div: This position is used for DC HiPot testing. The name of the test is
displayed on the lower portion of the CRT for reference. A digital readout for the leakage
current (in micro-amps) of the test and the resultant resistance in mega-ohms is also
displayed on the screen for reference. There are four positions associated with the HiPot test.
The four positions are 100uA/div, 10uA/div, 1uA/div, and 0.1uA/div. The chosen micro-amps
per division setting is displayed on the lower right portion of the CRT for reference during
2/24/2010 | 71-018 V11 EN
D12R, D6R, D3R Users Manual
12