www.nationalrailwaysupply.com
1-800-357-3572
5
39262A
Figure 8.1
9. MAINTENANCE
The battery charger requires minimal maintenance.
It should be kept clean and all connections are to be
periodically tightened.
BE SURE THE CHASSIS IS
SECURELY GROUNDED.
If any problem cannot be
resolved, consult the nearest NRS service agent at
1-800-357-3572.
10. SERVICING
If the battery charger operates improperly, follow the
steps below.
a. Begin by checking the voltage switches to
verify their settings against the specifications
of the batteries.
b. Check the AC voltage selection switch for
the proper setting.
c. Check the fuses to make sure they have not
blown.
d. Check the circuit breaker to see if it has
opened and push it in to reset it, if
necessary.
e. Check the polarity between DC output and
the battery and make sure their connections
are tight.
f.
Remove the small cover on the front of the
charger and make sure all of the binding
posts nuts are tight.
g. If the steps above do not solve the problem,
contact your local NRS service agent at
1-800-357-3572.
11. CHARGER SPECIFICATIONS
AC INPUT VOLTAGE:
115 VAC (108-128) or 230 VAC (216-256)
AC INPUT CURRENT:
16.0 amps for 115 VAC (full power)
7.5 amps for 230 VAC (full power)
AC INPUT FREQUENCY:
48
– 65 Hertz (single phase)
AC LINE REGULATION:
For a constant output current at 2.23 volts/cell
+ 5.6% for 18 cells
+ 13.1% for 12 cells
AC FUSES:
MDA 12 or equivalent
DC OUTPUT:
Voltage range
20.0
– 35.0 + 0.2 volts
Current Maximum 30.0 + .5 amps
DC OUTPUT RIPPLE (at battery terminals):
1.4V p-p at 30.0 amps, 24.0 volts
0.28V p-p at 2.0 amps, 26.8 volts
TEMPERATURE COMPENSATION:
3mV per
F per cell
WEIGHT, NET:
62 lbs.
DIMENSIONS:
W = 19 15/16" H = 8 7/8"
D = 8 3/4"
