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Atec Megger-MBITE User Manual

Page 3

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MBITE

Miniature Battery Impedance Test Equipment

flooded). A sample curve is shown in Figure 4. In order
to facilitate the long-term interpretation of impedance
values, Megger maintains a database of impedance values
of many battery types. For comparison purposes, this
information is available upon request.

An additional data evaluation method that can be used in
either a short-term or a long-term mode is in conjunction
with load test data. By taking impedance measurements
just prior to a load test and comparing them with end
voltage, a correlation between impedance and that string’s
capacity can be derived. See Figure 6.

FEATURES AND BENEFITS

Provides excellent data to evaluate critical systems’
back-up time

On-line testing requires no downtime

Graphical printout aids to quickly determine cell/jar
condition to make immediate decisions

Data is stored for on-site review

Requires no battery discharge to save cycle life

Built-in printer to leave a record at the site

RS-232 connector for downloading stored data to PC

Reduced testing time; less than 30 seconds per cell

Measures impedance and dc cell voltage for lead-acid
and nickel-cadmium cells

Directly measures intercell connection resistance to
eliminate routine retorquing

Up to 1000 sets of readings can be stored in an
unlimited number of tests

Custom Lead Sets available to meet specific needs

SPECIFICATIONS

Maximum Total Voltage at MBITE Leads

250 V dc. Larger battery systems can be sectioned

Power Requirements

120 V ac 60 Hz (240 V ac 50 Hz on –47 and –47-CE models)

Display

Backlit LCD panel with 5-in. (125 mm) viewing area

Voltage Range

0 to 2.500 V dc, 1 mV resolution
2.5 to 25.00 V dc, 10 mV resolution

Impedance Range

0 to 1.000 mΩ 1 µΩ resolution
1 to 10.00 mΩ 10 µΩ resolution

Measurement Accuracy

AC impedance: ±(5% rdng + 1 lsd)
DC voltage: ±(1% rdng + 1 lsd)

Settling Time per Reading

3 seconds maximum

Temperature

Operating: 32° F to 104° F (0° C to 40° C)
Storage: -5° F to 130° F (-20° C to 55° C)
Humidity: 20% to 90% RH, non-condensing

Clamp Range

Standard Opening: 2.0 in. (50 mm) maximum
Optional Opening: 0.5 in. (12 mm) maximum

Safety

Designed to meet IEC 1010-1 specifications
Dimensions: 7H x 11D x 17W in. (18 H x 29 D x 45 W cm)

Weight:

19.5 lbs. (8.8 kg)

Item (Qty)

Cat. No.

MBITE, 110/60

246005B

MBITE, 240/50

246005B-47

MBITE, 240/50, CE-marked

246005B-47-CE

Included Accessories

Potential Probe set

33530

Potential Probe cable (8 ft.)

33806

Fused Current Source Leads (8 ft.)

33805

Clamp-on current sensor, CT, with 1⁄2 in. opening (5 ft.)

33863

Extension cable, CT (6 ft.)

33864-1

AVOLink, downloading software Instruction manual

AVTM246005B

Optional Accessories

Potential Probe extension cable (8 ft.)

33806

Extension cable, CT (20 ft.)

246033

Clamp-on current sensor, CT, with 1⁄2 in. opening

246034

Factory Probes, dual-point helical hand spikes

33532

Factory Probes, AMP/Burndy Lead Set

33531

Bar Code wand with preprinted, laminated code sheet

246036

Bar Code Label printing software

246039

ORDERING INFORMATION