AEMC DTR 8510 User Manual page 32

1. Connect the Primary (H) and Secondary (X) cables to the appropri-
ate connectors on the DTR
(see Fig. 5-2).
2. Press TEST button. The test will run continuity first and then run the
ratio test.
WARNING: It is important to make sure the Primary (H) and the
Secondary (X) cables are connected properly BEFORE running the
test. This is especially true for the high turn-ratio transformers since
dangerous high voltage may appear on the DTR
NOTE:
• Continuity checks for the integrity of the cable connections only.
It does not check for H/X reverse polarity.
If the continuity for the Primary connections is within specified
limits, the display shows ---- or equivalent to a Closed Switch.
If the continuity for the Primary connections is outside the speci-
fied limits, the display shows --/-- or equivalent to an Open
Switch.
• During the Ratio test, the instrument will check for H/X reverse
polarity, short (excessive current) etc. before conducting Ratio
test.
In this example, the display will appear as shown below.
30
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8510 and the transformer under test
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Figure 5-3
Figure 5-4
Digital Transformer Ratiometer DTR
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8510 terminals.
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