Curtis 1624 User manual

Curtis Model 1624
Battery Charger
Manual
53098 Rev A 1/17
Specications are subject to change without notice.
© 2017 Curtis Instruments, Inc. ® Curtis is a registered trademark of Curtis Instruments, Inc.
© The design and appearance of the products depicted herein are the copyright of Curtis Instruments, Inc.
Read Instructions Carefully!
Curtis Instruments, Inc.
200 Kisco Avenue
Mt. Kisco, NY 10549
www.curtisinstruments.com

iiCurtis Model 1624 Manual
TABLE OF CONTENTS
1.0 Important Safety and Operating Instructions .......................................1
Safe Operating Instructions ...................................................................2
2.0 Maintenance ...........................................................................................3
3.0 Troubleshooting......................................................................................4
4.0 Charging Proles....................................................................................5
Table 1 Troubleshooting Chart......................................................................4

1Curtis Model 1624 Manual
1.0 IMPORTANT SAFETY AND OPERATING INSTRUCTIONS
This manual contains important safety and operating instructions for standard Curtis chargers. Please
read this information in its entirety before using your Charger.
WARNING
Use charger only with an algorithm selected that is appropriate to the specic battery type. Other
usage may cause personal injury and damage. Lead acid batteries may generate explosive hydrogen
gas during normal operation. Keep sparks, ames, and smoking materials away from batteries.
Provide adequate ventilation during charging. Never charge a frozen battery. Study all battery
manufacturers’ specic precautions (e.g. maximum charge rates and if cell caps should be removed
while charging).
DANGER
Risk of electric shock. Connect charger power cord to an outlet that has been properly installed and
grounded in accordance with all local codes and ordinances. A grounded outlet is required to reduce
risk of electric shock – do not use ground adapters or modify plug. Do not touch uninsulated portions of
output connector or uninsulated battery terminals. Disconnect the AC supply before making or breaking
the connections to the battery. Do not open or disassemble charger. Do not operate this charger if the
AC supply cord is damaged or if the charger has received a sharp blow, been dropped, or is damaged
in any way – refer all repair work to the manufacturer, or qualied personnel. This charger is not intended
for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of
experience and knowledge on electrical systems and battery charging, unless they have been given
supervision or instruction concerning use of the charger by a person responsible for their safety. Children
should be supervised to ensure that they do not play with the charger.
Figure A
Model 1624
Battery Charger – Front view

2Curtis Model 1624 Manual
SAFE OPERATING INSTRUCTIONS
• The charger may become hot during charging. Use hand protection to safely handle the charger
during charging.
• Extension cords must be 3-wire cord no longer than 30m (100’) at 10 AWG or 7.5m (25’) at 16
AWG per UL guidelines.
• Only connect one QuiQ Charger to a single 120VAC 15A circuit, or the circuit may become
overloaded.
• The charger will conduct a self-test after being powered on, visible by ashing all of its LEDs in
sequence.
Fault Indicator (Red Light)
• Charger error. Refer to troubleshooting information below.
• If solid: AC power is present.
• If ashing: Low AC voltage. Check electrical source and
cord length.
AC Indicator
Bulk Charge Indicator
• If solid: Bulk charge phase complete (80% charged); in
absorption phase.
• If ashing: Displays charge prole number if no battery
is connected.
Charge Completion Indicator (Green Light)
• If solid: Charging complete and maintenance mode is active.
• If ashing: Absorption phase complete, in nishing phase.
• If solid: Displays
scale of output
during bulk phase.
• If ashing: Output
has been reduced
due to high
internal charger
temperature.
Displays charge
proles 1-6 for
11 seconds if
no battery is
connected.
Ammeter
Charger 10-LED Display
LED Color Indication
Green If solid: Charging complete and maintenance mode is active.
If ashing:
Short: <80% Charge.
Long: >80% Charge.
When battery is not connected: Charge Prole (Algorithm Number) display.
Amber If ashing: Reduced power mode. Low AC voltage or high internal
charger temperature.
Red If ashing: Charging error. Reset charger power and refer to
Troubleshooting Instructions below.
Optional Charger Single-LED Display (internal or external)

3Curtis Model 1624 Manual
1. Do not expose charger to high pressure water spray when cleaning vehicle.
2. The enclosure of the charger meets IP66, making it dust-tight and protected against powerful
water jets. The AC connection is rated to IP20, which is not protected against water. Protect the
AC connection if used in wet or dusty environments.
3. If the detachable input power supply cord set is damaged, replace with a cord that is appropriate
for your region:
- This charger is provided with a cord set for connection to outlets operating at nominal 120
Volts (or 240 Volts as appropriate). If the input plug does not fit the power outlet, contact
Curtis Instruments for the proper cord set terminating in an attachment plug of the proper
configuration for the power outlet.
- ‘North America: UL or CSA listed / approved detachable cord, 3 conductor, 16AWG minimum
and rated SJT; terminated in a grounding type IEC 60320 C14 plug rated 250V, 13A minimum
- For all other regions: Safety approved detachable cord, 3 conductor, 1.5mm² minimum, rated
appropriately for industrial use. The cord set must be terminated on one end with a grounding
type input connector appropriate for use in the country of destination and, on the other end, an
output grounding type IEC 60320 C14 plug.
2.0 MAINTENANCE INSTRUCTIONS
Figure B
Model 1624
Battery Charger – Rear view

4Curtis Model 1624 Manual
3.0 TROUBLESHOOTING
If a fault occurs, count the number of red ashes between pauses and refer to the table below.
Table 1 Troubleshooting Chart
Flashes Cause Solution
Battery high voltage
Check battery size and condition. This
fault will clear automatically once the
condition has been corrected.
Battery low voltage
Check battery size and condition. This
fault will clear automatically once the
condition has been corrected.
Charge timeout caused by
battery pack not reaching
required voltage; or charger
output reduced due to high
temperatures.
Check connections, that battery
type matches selected charge prole
and operate the charger at a lower
ambient temperature. Reset the
charger by interrupting AC power for
15+ seconds.
Battery could not be trickle
charged up to minimum voltage.
Check for shorted or damaged cells.
Reset the charger by interrupting AC
power for 15+ seconds.
Charger shutdown due to high
internal temperature.
Ensure sufcient cooling airow.
Reset the charger by interrupting AC
power for 15+ seconds.
Internal charger fault
Reset the charger by interrupting AC
power for 15+ seconds. Return to
service depot if fault persists.
NOTE: This is a Class A product complying with United States Federal Communications Commission, Code of Federal Regulations; 47CFR part 15. In a
domestic environment this product may cause radio interference, in which case the user may be required to take adequate measures.
WARNING: Charger connectors must be mated to connectors from the same manufacturer. Failure to do so may void warranty and cause a hazardous
condition or equipment damage.

5Curtis Model 1624 Manual
4.0 SELECTING A CHARGE PROFILE
The 1624 Charger can store up to 10 charging proles, also called charge algorithms. This section
shows how to identify the default prole and select a new prole using the “tap method.”
Model 1624 chargers are also reprogrammable by using the dedicated programmer. Pre-2006 Model
1624 chargers with serial number prex DQCP allow pre-loaded proles to be selected but cannot be
reprogrammed with new proles.
Identify the default prole
1. Required supplies include an insulated
wrench, eye protection and gloves.
2. Disconnect the AC power source from the
charger, either from the wall outlet, or from the
IEC320 connector on the charger (Figure 1).
3. Use your insulated wrench to remove the
positive lead from the positive terminal on the
battery pack (Figure 2).
4. Reconnect AC power (Figure 3).
5. Charger will conduct a self-test of its LED
indicators (Figure 4).
6a. For 11 seconds after the self-test, the
charger will display its default charge prole.
Proles #1-6 will display on the ammeter, as
well as on the bulk charge indicator (Figure 5).
6b. Charge proles #7 and above will
display on the bulk charge indicator. If the
charge prole number has two digits, it
will be displayed by one or more ashes, a
pause, then one or more ashes (e.g. #13 =
) (Figure 6).
Figure 1: Disconnect AC power.
Figure 2: Remove positive lead from positive
terminal on the battery pack.
Figure 3: Reconnect AC power to the charger.
Figure 4: Charger LED indicator self-test.
Figure 6: Bulk charge indicator displays charge
proles 7 and above.
Figure 5: Charge prole #1 on the ammeter.

6Curtis Model 1624 Manual
Select a new prole
7. Disconnect AC power (Figure 1).
8. Reconnect AC power (Figure 3).
9. Touch the positive lead to the positive terminal for three
seconds (+/- 0.5 seconds), then remove the lead. You will see
the next prole displayed on the charger’s display. Repeat this
step until you reach the desired charge prole (Figure 7).
10. When the charger displays the desired charge prole,
apply the positive lead to the positive battery terminal for
10 seconds. When the charge prole is locked, you will hear
a click from the charger. See Figure 7 for how to apply the
positive lead to the positive terminal.
11. Disconnect AC power, wait for the LED indicator display to
turn off, then reconnect AC power. (Figure 3)
12. Check the LED display to ensure that the desired charge
prole is selected.
13. Disconnect the charger from AC power and wait for the
LED indicator display to turn off. (Figure 1)
14. Reconnect the positive lead to the positive battery
terminal (Figure 8).
SELECTING A CHARGE PROFILE CONT'D
Figure 8: Reattach the positive lead to the
positive terminal after disconnecting AC power.
Figure 7: Touch the positive lead to the
positive battery terminal for 3 seconds.