M
AVTM246004 BITE 2/2P Rev 4 July 2011
4
BITE 2/2P Measurements
Impedance readings are calibrated to 5 percent of reading over
the specified temperature range. For ac impedance, the
receiver screen presents data as ranges: 1.000, 10.00, and
100.0 mΩ. The maximum measurement is 200 mΩ.
Impedance precision (reproducibility) is 0.5%, and voltage
precision is 0.5%.
Test numbers start with number one (001) and increment
after each successful cell and strap reading. The operator
initiates data acquisition by pulling a trigger on the receiver.
The measurement range for dc voltage is from 1 to 25 V dc
with an accuracy of 1 percent of reading.
Intercell (strap) and intertier connection measurements are
made directly after the internal cell impedance measurement
when STRAP is displayed on the LCD of the receiver. This
feature provides resistance measurements in the same ranges
as the cell/module impedance.
Total current is monitored with each impedance measurement
to compute both cell and strap impedance and intercell (strap)
resistance. The operator selects filtering in a menu in the
receiver as either 50 Hz or 60 Hz depending on the line
voltage.
A low current cutoff alarm is maintained at 3 A, and the
maximum current allowed is 15 A. The LCD displays
"Hi_A" to warn of an ac current over-range and "Lo_A" for
current below 3 A.
Upon Receipt of the BITE 2/2P
Check the equipment received against the packing list to
ensure that all materials are present. Notify Megger of any
shortage (tel: 610-676-8500).
The BITE 2 instrument is shown in Figure 1-1. The BITE 2
includes the following components and accessories:
• transmitter with built-in receiver battery charger
• receiver
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