IOTA DLS 27-15 Owner's Manual

The DLS series power converter/battery charger from IOTA
Engineering converts nominal A.C. voltage to volts D.C.
As a power supply, its tightly controlled regulation al-
lows the user to operate any appropriate nominal D.C.
load up to the converter's rated output current. As a bat-
tery charger, the converter will maintain the battery, de-
livering its full-rated current when the battery capacity
falls sufficiently low. The voltage is set to deliver its
maximum current for the necessary period of time that
minimizes undue stress to the battery caused by heat-
ing of its cells. This helps to ensure the longest pos-
sible life of the battery. Over time, as the battery nears
its full capacity, the converter will float-charge the bat-
tery to prevent self-discharge of its cells.

PROTECTION FEATURES

The DLS series power converter/battery charger is designed
with high quality components to help ensure years of con-
tinuous use. The DLS series is protected by multiple pro-
tection features for a long, trouble-free life.
1) Reverse Battery Polarity Protection. 2) Brown-Out
Input Protection. 3) Over-Current Protection - cycle
by cycle peak limiting as well as rated current limiting
to maximize the life of the converter. 4) Over-Tem-
perature Protection. In addition, it is designed with a
unique "proportional" fan control circuit. Fan speed is
directly proportional to the converter's internal ambi-
ent temperature. This enables the fan to turn on and
off very slowly, minimizing unwanted fan-starting noise.

WARRANTY

The DLS series power converter/battery charger is war-
ranted from defects in materials or workmanship for two
years from date of retail purchase, and limits the remedies
to repair or replacement. This warranty is valid only in the
continental United States and Canada. For complete war-
ranty details, consult Customer Service or visit
www.iotaengineering.com.
POWER CONVERTER/CHARGER
DC Output Voltage (No Load) approx.
Output Voltage Tolerance (No Load)
Output Amperage, Max Continuous
Output Voltage (Full Load) approx.
Maximum Power Output, Continuous
Ripple and Noise
Input Voltage Range
Input Voltage Frequency
Maximum AC Current
Typical Efficiency
Max Inrush Current, Single Cycle
Short Circuit Protection
Overload Protection
Line Regulation
Load Regulation
Fan Control*
Thermal Protection
Working Temperature Range
Storage Temperature
Withstand Voltage
Dimensions**
Weight
Distributed By:
27VDC DLS SERIES
OWNER'S MANUAL
DLS 27-25 DLS 27-40
DLS 27-15
27.2 V (DC)
27.2 V (DC)
+ or - .5%
+ or - .5%
15 Amps
25 Amps
>27.0V (DC)
>27.0 V (DC)
400 Watts 675 Watts
<50 mV rms
<50 mV rms
108 - 132 AC
108 - 132 AC
47-63
47-63
7.0 Amps 11.6 Amps
>80%
>80%
8 Amps
16 Amps
Yes
Yes
>100%
>100%
100 mV rms
100 mV rms
<1%
<1%
PROPORTIONAL PROPORTIONAL
PROPORTIONAL
YES
YES
0 - 40C
0 - 40C
-20 to 80C
-20 to 80C
1240V @ leads 1240V @ leads
1240V @ leads
7" x 6.5" x 3.5"
7" x 6.5" x 3.5"
10" x 6.5" x 3.5"
5.5 lbs
5.5 lbs
27.2 V (DC)
+ or - .5%
40 Amps
>27.0 V (DC)
1100 Watts
<50 mV rms
108 - 132 AC
47-63
20 Amps
>80%
20 Amps
Yes
>100%
100 mV rms
<1%
YES
0 - 40C
-20 to 80C
7.8 lbs