4
Quick Tester Model 8505
1.3 Introducing the Quick Tester Model 8505
The AEMC
®
Quick Tester Model 8505 is a hand-held instrument for
performing quick basic integrity tests on transformers and capacitors
used by electrical utilities. This instrument is a fast and inexpensive
inspection tool for detecting opens or shorts caused by shipping damage
or workmanship issues, and for verifying the proper operation of
switching components.
The Model 8505 verifies transformers with functional coils without
requiring a full transformer ratio test. A single user can check a shipment
of incoming transformers; units that have a defective coil or switch can
be quickly pinpointed and turned around for repair. The instrument
provides simple, single-button operation; the user only needs to make
the proper connections and push a button. Test results are clearly
indicated by bright LEDs and (when applicable) a buzzer. The instrument
includes captive cables with safety clips, test probe, and a built-in fuse
for protection; and operates on four AA batteries. It also automatically
detects whether or not the unit under test is a transformer or a capacitor.
The Model 8505 features internal multi-frequency ACV source and
loads to accommodate the testing of a wide range of transformers and
capacitors. Its microprocessor-based design provides a high level of
control, stability, and repeatability. Other Model 8505 features include
built-in self-test components, fuse protection, and an indicator providing
ample warning for low battery. Typical users include electrical utility
maintenance and management personnel at electrical utility supply and
transformer repair facilities. For instance, electrical utility staff can use