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National Railway Supply ELC-24/10-M-D Installing, Operating And Service Instructions

Solid state battery charger

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PLEASE SAVE THESE IMPORTANT SAFETY AND OPERATING INSTRUCTIONS
For correct operation of the equipment, it is important to read and be familiar
with this entire manual before installing and operating the charger.
LOOK FOR THIS SYMBOL TO POINT OUT SAFETY PRECAUTIONS.
BECOME ALERT—YOUR SAFETY IS INVOLVED. IF YOU DO NOT FOLLOW THESE
SAFETY INSTRUCTIONS, INJURY OR PROPERTY DAMAGE CAN OCCUR.
1. IMPORTANT SAFETY INSTRUCTIONS
a. Before using the battery charger, read all
the instructions and caution markings on the
battery charger, the battery, and all of the
products using the battery.
b. Do not touch the uninsulated parts of the AC
input or the DC wires, the charger's binding
posts, or the battery terminals, as there is a
possibility of electrical shock.
c. Batteries produce hydrogen gas while
operating, which can explode if ignited.
Never smoke, use an open flame, or create
sparks in the vicinity of the battery. Ventilate
the area well when the battery is charging in
an enclosed area.
d. Batteries contain caustic material which may
cause burns. Do not get in eyes, on skin, or
clothing. If the gelled or liquid content of the
batteries contacts the skin or clothing, wash
the area thoroughly with water. In the case
of contact with the eyes, flush immediately
with clean water for 15 minutes and obtain
medical attention.
e. Only qualified personnel should program or
service this equipment.
www.nationalrailwaysupply.com
1-800-357-3572
NATIONAL
RAILWAY
MODEL ELC-24/10-M-D
BATTERY CHARGER
DO NOT DISCARD THIS MANUAL AFTER READING.
SUPPLY
f.
De-energize
connections before servicing this unit.
injury does occur, apply standard treatment
for electrical shock and, if necessary,
consult with a physician.
g. The charger is not for outdoor use. Do not
expose the charger to rain or snow.
h. Do not operate the charger if it has received
a sharp blow, been dropped, or otherwise
damaged.
i.
Do not disassemble the charger. Have the
charger
RAILWAY SUPPLY service agent.
charger is assembled incorrectly, damage to
the charger and the batteries or an electrical
shock may result.
2. DESCRIPTION
The NATIONAL RAILWAY SUPPLY charger, model
ELC-24/10-M-D, is a convection-cooled, solid state,
SCR regulated charger that provides either a
constant current or constant voltage output.
charger can be set to charge batteries within a
voltage range of 20.0 to 35.0 volts for gel-cell, liquid
lead-acid, nickel cadmium, nickel iron, and starved
electrolytic batteries.
1
*38502*
Installing, Operating and
Service Instructions for the
ELC-24/10-M-D
Solid State Charger
IT MEANS:
all
AC
and
DC
examined
by
a
NATIONAL
power
If
If the
The
38502A

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Summary of Contents for National Railway Supply ELC-24/10-M-D

  • Page 1 The NATIONAL RAILWAY SUPPLY charger, model the area thoroughly with water. In the case ELC-24/10-M-D, is a convection-cooled, solid state, of contact with the eyes, flush immediately SCR regulated charger that provides either a with clean water for 15 minutes and obtain constant current or constant voltage output.
  • Page 2: Theory Of Operation

    3. THEORY OF OPERATION control module temperature compensation range between 32°F and 95°F ( 0°C When the charger is connected to the desired AC and 35°C) that does not allow charger voltage to voltage source (115 or 230), the transformer creates increase or decrease beyond the calculated values.
  • Page 3: Temperature Probe

    ground binding posts (A.A.R.) located on the front of WARNING: IT IS IMPORTANT TO MOUNT the charger. Open the small door cover on the front TEMPERATURE PROBE of the charger by pulling out on the push tabs. BATTERIES PROPER TEMPERATURE Connect the AC power terminals on the two posts on COMPENSATION.
  • Page 4 The OPEN, COMMON, and CLOSED relay contacts 9. CURRENT MONITOR/ALARM have push-in type terminals for remote wiring. The The ELC-24/10-M-D battery charger includes an relay contacts are rated for 1A at 30 Vdc or 0.5A at integrated current monitor/alarm that monitors the 120 Vac.
  • Page 5: Maintenance

    Current Limit Adjustment 10. MAINTENANCE The current limit adjustment should be set to a level The battery charger requires minimal maintenance. that is below the charger output when sourcing the It should be kept clean and all connections are to be minimum DC load of the system and floating the fully periodically tightened.
  • Page 6: Temperature Compensation

    Current Maximum 10 + 0.6 amps 13. PARTS LIST The following is a list of parts found in the NRS model ELC-24/10-M-D. When replacing a part, USE ONLY ORIGINAL FACTORY REPLACEMENT PARTS of the correct size and rating. PART NO.
  • Page 7: 14. Wiring Diagram

    14. WIRING DIAGRAM www.nationalrailwaysupply.com 1-800-357-3572 38502A...