Sensors & Software Inc. NG250 ユーザーズマニュアル
Noggin
14-Care and Maintenance
115
14 Care and Maintenance
14.1 Battery Care
Smart Systems use 12-volt sealed lead acid batteries. They are fused with a 10 Amp fuse to
protect them from short circuit damage.
protect them from short circuit damage.
The SmartCart battery unit uses contains a 9 Amp-hour battery. The battery unit should run the
Cart Noggin for 4-5 hours before recharging is necessary. If long days of data surveying are
typical, a second battery unit may be a useful item.
Cart Noggin for 4-5 hours before recharging is necessary. If long days of data surveying are
typical, a second battery unit may be a useful item.
If batteries are maintained in a charged condition they will give long life and reliable service.
Improper use and lack of maintenance will greatly reduce their life.
Improper use and lack of maintenance will greatly reduce their life.
Sealed lead acid batteries should NEVER be left in a discharged condition for any period of time.
Charge the batteries as soon as possible after use.
Charge the batteries as soon as possible after use.
Charge batteries at room temperature whenever possible.
The Noggin and DVL contain a voltage monitoring circuit that will turn off the unit when the input
voltage drops below 10.2 volts.
voltage drops below 10.2 volts.
If a battery has been deeply discharged or left in a discharged condition for some period of time it
may not accept charge immediately when it is connected to the charger (The fast charge LED will
not light). If the fast charge light does not come on within 6 hours the battery should be
considered damaged and should be discarded.
may not accept charge immediately when it is connected to the charger (The fast charge LED will
not light). If the fast charge light does not come on within 6 hours the battery should be
considered damaged and should be discarded.
Do not assume that a battery that is still charging after 8 hours is nearing the end of its charge
cycle. Typical charging time for an empty battery is 12-14 hours from start of fast charge.
cycle. Typical charging time for an empty battery is 12-14 hours from start of fast charge.
Ensure that the batteries are fully charged before storing. If practical, store the batteries in a cool
place, 10
place, 10
o
c (a refrigerator is ideal), but make sure the temperature is not likely to drop below -
30
o
C or the electrolyte may freeze and possibly split the case.
14.2 DVL Internal Battery
If the Smart System has not been powered up for an extended period of time, the internal battery
will discharge. The dead battery causes the DVL time and date to reset to January 1, 1988 at
12:00 PM. To correct the time and date see Section 12.5.1: P.110.
will discharge. The dead battery causes the DVL time and date to reset to January 1, 1988 at
12:00 PM. To correct the time and date see Section 12.5.1: P.110.
To recharge the internal battery the Smart System must be powered up and left running for at
least one hour and preferably longer.
least one hour and preferably longer.
14.3 Cable Care
1)
The cable connectors as well as the connectors on the Noggin and DVL need to stay
clean and free of dust and moisture. Use a brush or air spray to clean dust, lint and
other foreign particles from these connectors.
clean and free of dust and moisture. Use a brush or air spray to clean dust, lint and
other foreign particles from these connectors.