AEMC 8500 - Displayed Messages

16 Digital Transformer Ratiometer DTR
®
Model 8500
4.5 Displayed Messages
Check for H <> X Cable Reversal
The DTR
®
may have detected a potentially hazardous step-up condition
while attempting to test the transformer as connected. Verify connections:
HRED & HBLACKshould beattachedtothe highvoltagewinding.XRED &
XBLACK should be attached to the low voltage winding.
High Excitation Current
Check test cable connections for inadvertent short circuits. Check for
shorted transformer windings.
Check Cables & Connections
Verify that all test cable connections have been made correctly and are
rmlyattachedtothetransformerterminals.Inspecttransformerterminals
for dielectric coatings, fungus and corrosion.
Low Battery
Low battery indication. Recharge the batteries immediately.
Note: The DTR
®
can be operated during battery charging.
Calibrating Please Wait
The DTR
®
always self-calibrates upon power-up. The DTR
®
will also
automatically self-calibrate:
• atperiodicintervals
• after32sequentialtestcycleshavebeenperformed
• followingthedetectionofanyerrorinwhichtheDTR
®
automati-
cally cancels the test in progress
VT/PT Test Mode
Operation mode used in VT/PT testing, power-up default mode
VT/PT Test Mode Ready
Indicates system ready for VT/PT testing
CT Test Mode Selected
Indicates user selection of CT Test Mode. Mode selected by depressing
andholdingTESTbuttonduringpower-upsequence.