All STS Battery Element Testers provide a unique method
for the detection of assembly level insulation defects
in lead-acid batteries, including missing and damaged
separators. Detection of such faults prior to filling
and charging the battery minimizes costly reclamation.
Traditional AC dielectric tests can detect such faults,
but may produce damaging heat in moist cell
applications. To overcome this limitation, STS has
developed testers that employ a high-voltage, short
duration pulse to maximize stress to the dielectric
material while minimizing average energy. The goal is to
provide sufficient stress to cause current flow in the
presence of a failure. This technique allows reliable
fault detection while eliminating damage due to
overheating that may occur with an AC test.
All testers feature an adjustable test voltage with a
peak output of 3,000 volts, accommodating a wide range
of separator spacing and types. Durable solid state
switching of the high voltage assures reliability for
high volume applications. Easy-to-read displays provide
readouts for applied voltage and quality readback.
Following a simple setup procedure, operation is
go/no-go, and requires no operator interpretation of
results. The test voltage is applied using included
safety probes. When a failure occurs, the high voltage
is shut off and both audible and visual alarms warn the
operator of the failure.