P/N 752-648 Rev. 20121017 IR
Page
11 of 12
DETAILED SPECIFICATIONS - VDC Model No. DS24041-AA-S5
28.2V – 4A Microcontroller Based Charger for General Aviation Lead-Acid Battery
FCC Part 15 Certification:
This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This equipment generates,
uses and can radiate radio frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. However, there is no guarantee
that interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off and
on, the user is encouraged to try to correct the interference by one of more of the following measures:
•
Reorient or relocate the receiving antenna.
•
Increase the separation between the equipment and receiver.
•
Connect the equipment to an outlet on a circuit different from that to which the receiver is connected.
Electrical Parameters:
Input voltage: 90 -‐ 140Vac
Input frequency: 50/60 Hz
Unloaded input current: 80 mA ac
Input current consumption at 120VAC input, output 26V 4A loading (UL1236) approx: 1A AC
Charging Output Control Characteristics:
Soft start charging Activity conditions: Battery voltage is over 6 VDC and less than 21VDC
Soft start charging output current control: (4A mode) 4 ±0.
2
5 A DC
Soft start charging Timeout: 6 ±0.
2
5 Hours (Stops charge if battery cannot be charged over 21 volts
after 6 hours,
Power-Status
indicator flash indicated)
Bulk charging activity conditions: Battery voltage is over 21VDC
Bulk charging current control at 4A mode: 4 +0.
22
/ -0 amps DC
Max. rated output voltage and current:
2
6.0V at 4A DC
2
7.
2
V at
3
.
2
5A DC
Bulk charging time limited: (stops charge if battery cannot be fully charged [28.2V @ 24°C] after
2
0
hrs, error LED flash indicated)
2
0 ±1 hours
Maintenance-Float Operations:
Mode: 1) Charging current
2) 5 hours time-out: after 5 hours unit switches to Float Charge mode
Absorption mode thermal runaway protection: Stops charging when the second current sample is
larger than the first current sample (positive dI/dt)
Charge-Float
indicator will
FLASH GREEN
Float charge output voltage control
2
7.0 ±0.
2
5 VDC
Float charge current control (4A Rate)
2
A DC ±0.
2
5
Float charge transitions to PWM* Float Charge mode after 1 hour
Float pulse charge voltage control
2
7.0 @
2
4°V ±0.
2
5 VDC
Float pulse charge current control: (4A rate)
2
A DC ±0.
2
5
Battery sulfation check period (after absorption charge is finished): 10 minutes
Unloaded output voltage when battery is disconnected: 0.5 VDC (max.)
Output short-circuit current when battery disconnected: 5mA DC (max.)
Battery flow back current (to the charger) when connected to 24V battery, AC power disconnected:
30 (max.) mA DC
All indicators shut off if AC power is disconnected for 5 minutes
Full time de-sulfation output pulse current control Ip-p ±3ADC
Full time de-sulfation output PWM* frequency 100 ±10Hz
Full time de-sulfation duty 0.3%
* Pulse Width Modulated
