Atec Megger-MBITE - Manual

MBITE
Miniature Battery Impedance Test Equipment
■
Determines condition of lead-acid and
NiCd batteries on-line to 2500 Ah
■ Helps to ensure (Improves) critical
equipment back-up and (continuous)
revenue streams
■
Directly measures intercell connection
resistance and voltage
■
Standard and Custom Lead Sets available
■
17% smaller than the previous version
MBITE
Miniature Battery Impedance Test Equipment
DESCRIPTION
The Miniature Battery Impedance Test Equipment, MBITE,
is designed and ideally suited to determine the health of
flooded and sealed lead-acid and Ni-Cd batteries in
telecomm, RR signal and communications, substation,
process control and switchgear, emergency lighting
systems, smaller UPSs, and more. An additional
application is to measure impedance of batteries at the
end of the production line in battery manufacturing plants.
The MBITE is a lightweight, easy-to-use battery tester that
incorporates advanced features for enhanced capabilities
to provide fast, reliable results to determine what further
action may be required to ensure adequate system back-
up time. After all, measuring batteries is not for the
battery but for the equipment the battery is supporting
whether to ensure revenue streams or to support critical
plant equipment such as oil priming pumps.
In addition to measuring battery impedance and
interconnection resistance, the MBITE also measures
individual dc terminal voltages. Furthermore, since
impedance does not stress the battery, terminal voltages
may be used when they need to be documented. All
three parameters can be stored (up to 1000 lines of
readings) on-board for immediate review at the test site
on the large 31⁄2 digit LCD or from the built-in printer.
The stored data also can be downloaded via the RS-232
connector to a PC using “AVOLink” download software or
other conventional communications packages to
spreadsheet applications for further data interpretation.
The Battery Analysis Report (see Figure 1) prints out cell
number, battery impedance, interconnection resistance,
cell dc voltage, date and time at which cell impedance is
recorded, total test current, and cell impedance summary
including graphical analysis. The printed header has space
to record user, location and cell IDs using the Bar Code
Wand listed in Optional
Accessories.
Unlike load cycle testing,
which involves substantial
downtime and performed
periodically, the MBITE
requires no battery discharge.
With a test time of less than
30 seconds per cell, it
measures internal cell
impedance, dc terminal
voltage and intercell
connection resistance without
taking batteries off-line. The
MBITE, like the original BITE,
is used to find weak cells due
to sulphation, post-seal
corrosion, and poor top lead
and intercell connections.
The test results, along with
user-supplied information
such as ambient temperature
and system ac ripple current,
will provide sufficient
information to evaluate the
overall battery system.
Battery Analysis Report
Location ID:
USA Mobile Comm Site 37W Str 1A
User ID:
John Doe
Average Test Current: 0.98
Notes:
23-FEB-2000
TST Cell Zb mΩ RS mΩ Volts DC Time
001 1A01 2.46 0.356 6.18 10:56
002 1A02 2.34 0.359 6.23 10:57
003 1A03 2.65 0.341 6.23 10:57
004 1A04 2.47 0.355 6.18 10:58
005 1A05 2.34 0.337 6.23 10:58
006 1A06 2.65 0.347 6.23 10:58
Cell Impedance Summary
Minimum Average Maximum
2.34 2.48 2.65
Percent Deviation from Average
-10 0 10 20 30
001
002
003
004
005
006
Figure 1.The Battery Analysis
Report (with Loc ID, User ID,
Notes, Cell ID filled-in)