3
West Mountain Radio
Operating Manual
number of cells, from 0.7 to 10 volts. The CBA HR is capable of testing batteries at load currents from 1 mA to
1000 mA, (10 watt maximum), in increments of 1 mA.
An optional 4-wire test harness improves voltage measurement accuracy by minimizing the voltage sensing
lead wire resistance effect. Some optional harnesses also include an external magnetic probe, which when
used with optional Extended Software allow logging of battery / ambient temperature and automatic over-
temperature test cutoff.
Standard Software is supplied with the CBA HR. In addition to the four basic test modes included with the CBA
IV (Mission Profile, Discharge, Charge Monitor, and Power Profile), the CBA HR adds two additional test modes
(Duty Cycle and Multiple Discharge) to allow user simulation of real world battery load variations found in typical
remote sensor sleep / transmit applications.
The optional Extended Software license provides the ability to graph battery temperature when the optional
magnetic temperature probe is connected. This optional temperature probe is included in selected test harness
assemblies and is connected to the CBA HR via a 3.5mm accessory input.
The CBA HR is not designed to be used with optional West Mountain Radio 500 watt CBA Amplifiers. For
higher test currents and voltages that exceed the CBA HR’s ratings - use the West Mountain Radior CBA IV,
which can accommodate one or more 500W Amplifiers.
CBA IV Specifications
Electrical
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Maximum continuous discharge rate: 100 watts
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Maximum limited term discharge rate with < 3500 ma-hour battery: 125 watts
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Maximum limited term discharge rate with < 1000 ma-hour battery: 150 watts
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0-3 amp accuracy: typically better than + - 10 mA
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3-40 amp accuracy: typically better than + - 45 mA
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0-5 volt accuracy: typically better than + - .005 volts
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5-15 volt accuracy: typically better than + - .01 volts
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10-60 volt accuracy: typically better than + - .05 volts
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Maximum operating voltage: 55 Volts (48 Volt Lead Acid Telecom supported)
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Maximum discharge rate: 40 Amps (Battery dependent, 100 watt continuous)
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Minimum discharge voltage to maintain 30 Amps 0.9 Volts (Battery dependent)
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Minimum Voltage for a 40 Amp discharge: 2 Volts at completion of test (Battery dependent)
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Minimum discharge rate: 0.01 Amps (10 mA)
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Residual current drain, battery connected while not in use: < 3 mA @ 12 volts
Hardware / Software
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High performance micro controller with USB interface and 12 bit A/D conversion
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USB powered: CBA does not use battery being tested to run the CBA or fan
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Computer Interface: USB Type A to B (Cable Included)
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Load Connections (Battery Test): Powerpole (+) / (-)
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I/O Port: 5 pin flat header for Temp Input & Serial Port
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LED indicators: System ready and Test in progress, viewable from across a room
