4040 Viper User ManualRevision 3, Oct 2012 2 Analyzer Description – 2-9supply power at the rate of 4.5 Amps for one hour or at the rate of 1Amp for 4.5 hours. Thedifference in battery technology removes the "memory effect" associated with NiCd batteries.The analyzers in this serial number group also have integrated "smart-charger" technology.The battery can be fully cycled (charged and discharged), or partially discharged prior to re-charge, or any combination of the two methods and the smart-charging circuit combined withthe NiMH chemistry will result in having 100% battery capacity available. This removes theneed for periodic deep discharge/re-charge cycles associated with properly maintaining NiCdbatteries. The NiMH batteries, combined with the proper charger, require just 4 hours for afull charge, but can be left on charge indefinitely. After a 4-hour (or less) full charge, thecharger switches to "top-off" mode for another 2 hours to ensure that the battery is fullycharged to 100% capacity. At the end of the top-off period, the charger switches to trickle-charge mode which is simply counter-acting the self-discharge of the battery pack.2.4.2. Battery ChargerWARNINGThe Viper was not intended to be operated during the charging cycle. Individual powerrequirements must be examined on a case by case basis. Operation of the Viper withthe charger energized and connected may affect acquired readings.Each power supply configuration described above has a specific battery charger available torecharge the internal battery.2.4.2.1. Nickel Cadmium (NiCd) equipped analyzersThe analyzer’s internal battery must be charged periodically. This is accomplished using thebattery charger included as standard equipment with your analyzer and shown in thephotograph below. The 12-Volt DC battery charger is used to charge the 4040’s nickelcadmium batteries. The charger has an input of 100-240VAC, 50-60Hz. The output is18VDC, 670mA. The charger has a two-prong outlet connector and cord that plugs into thecharging unit and into a wall outlet. The cord is a standard, 16-gage electrical appliance cordand is 6 feet long. The analyzer connector end is an MS, three-pin female, quarter turn locktype connector, constructed of aluminum alloy and coated with olive drab chromate forcorrosion protection.
