Test Lead Connections - Baker Instrument Company D12R User Manual

Instrument Overview
testing. The position of the function knob in one of the above current ranges also
automatically selects the overcurrent trip point which will be ten time the settings or 900uA,
90uA, 90uA, or 0.9uA, respectively, for each of the sensitivity ranges above.
Resistance Lead 1-2: This position selects the storage location for a resistance test. This
does not select the actual leads connected to the D12R/D6R/D3R.
Resistance Lead 2-3: This position selects the storage location for a resistance test. This
does not select the actual leads connected to the D12R/D6R/D3R.
Resistance Lead 1-3: This position selects the storage location for a resistance test. This
does not select the actual leads connected to the D12R/D6R/D3R.
13) Volts/Div
This control sets the sensitivity of the display or scale factor in volts per division for both the
Surge and DC HIPOT traces. There are four settings corresponding to the tester. For example
the D12R Volts/Div are 500, 1000, 2000, and 3000 volts. Note: this knob setting does not
limit the output voltage of the tester.
14) Seconds/Div
This control adjusts the seconds per division or sweep rate of the trace on the horizontal axis
of the surge display. There are ten settings corresponding to 2, 6, 10, 20, 60, 100, 200, 500,
600, 1000, 2000 micro-seconds per division. The seconds per division setting is displayed on
the lower right portion of the display for the reference during Surge Testing. This control will
have the effect of zooming in or out on the wave pattern.
15) Leads energized indicator light
This indicator light will illuminate when voltage is applied during a test.
V fast up
When pressed, this control will increase the applied voltage to a motor at an increasing rate of
approximately 1000V/second.
V slow up
When pressed, this control will increase the applied voltage to a motor at a slower but still
increasing rate of 33.3V/second.
V slow down
When pressed, this control will decrease the applied voltage to a motor at a slow rate of
approximately 250V/second.
16) Test button
The test button activates the high voltage output of the tester. One of the selected modes,
surge or HIPOT, will be enabled and a voltage will be impressed on the device being tested.
This button automatically disengages when released and must be held in during the whole
length of the test unless the Footswitch is being used.
17) Test lead select switch

Test lead connections

Switch position Test lead #1
Surge lead 1 Hot
Surge lead 2 Ground
Surge lead 3 Ground
HiPot Hot
All leads ground Ground
18) Footswitch connector
A footswitch may be connected to this socket which is in parallel to the Test button. The
footswitch will operate the tester in a manner identical to the Test button, freeing the users
hand from having to operate the Test button.
19) Test leads
Test leads #1, #2, and #3 (red) and grounds (black) are provided for contact to the windings.
Test leads are insulated to 40 kV.
20) Resistance test leads
There are two sets of test leads, two wires each lead, that are provided to make contact to
the windings of a motor. Each set of leads contains a current carrying lead and a high
impedance sense lead.
2/24/2010 | 71-018 V11 EN
D12R, D6R, D3R Users Manual
Test lead #2 Test lead #3
Ground Ground
Hot Ground
Ground Hot
Open Open
Ground Ground
Ground
Ground
Ground
Ground
Ground
Ground
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