Vanguard TRM-203_403 - Manual (Page 7)

REV 1 TRM-203 AND TRM-403 USER’S MANUAL
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Computer Interface
The TRM-203/403 can be connected to a PC via the unit’s RS-232C, USB, or Bluetooth interface.
A PC can be used to control the TRM-203/403 to perform transformer resistance tests. Test
records (stored in the TRM-203/403 or a USB Flash drive) can also be retrieved, reviewed, and
printed. Test records are automatically exported to PDF, Excel, and XML formats.
Safety Features
The TRM-203/403 automatically dissipates the energy stored in the transformer at the end of
each test. The discharge circuit will continue to work even if the TRM-203/403 power supply is
lost.
Test Record Storage
The TRM-203/403 can store up to 256 static test records (111 tests per record) and 120
dynamic test records internally. For external test record storage, the TRM-203/403 features a
USB Flash drive interface port. Up to 999 test records can be stored on a connected USB Flash
Drive.