Using state-of-the-art switch-mode technology the DLS Power Supply series is engineered with the user and variable environmental conditions in mind. Extra care has been given to insure many years of service-free operation, even when subjected to extremely harsh conditions. Batteries are charged quickly and efficiently without over charging. Pumps, motors, and fans operate perfectly for prolonged life.
IOTA Engineering uses advanced switch mode technology to bring to market highly sophisticated electronic converter/power supplies at appealing affordability.
Exceptionally clean DC output insures pumps, motors, fans, and lights work perfectly. This means longer life for any connected load and virtually no AC ripple to cause static or premature failure of radio or television equipment.
The DLS series converter/charger quickly and efficiently charges batteries from the full rated output of the DLS. The DLS then maintains the batteries, only putting into the battery what is required by load or self-discharge, cutting back to milliamps as the battery requires.
Low and transient AC line voltage is a major cause of converter/power supply failure. The DLS series converter/power supply is protected against low line voltage, as well as spikes coming from the AC power source or from improperly adjusted generators.
The DLS series converter/power supply meets F.C.C. criteria, minimizing radio and television equipment interference, especially on the lower frequency bands.
The DLS series converter/power supply can be used with or without a battery. When used as a converter/power supply, the DLS model will only supply what the load requires. When not in use it is essentially off, reducing electricity usage.
Even in its subcompact size, the DLS series converter/power supply, at full load, has an operating temperature half that of some switch mode electronic models. This means substantially longer life and safer operation.
Tight line-load regulation ensures that the output voltage holds steady from no load to full load. This keeps pumps, motors, and lights working at the correct voltage even during brown out situations.
Proportional Fan Circuitry provides an extra measure of protection. During times of heavy load demands, the automatic circuitry will activate the fan before thermal stress can occur on any internal components. Reliability and durability is built into all DLS models.
In the event the batteries or the DLS unit is wired incorrectly, the DLS converter/power supply is protected from damage. External fuses can be quickly and easily replaced.
How IQ Smart Technology Works

The IQ is designed for use with the DLS series converter/chargers. The IQ Controller allows the DLS charger to operate as an automatic 3-stage "smart charger". This gives the battery(s) the benefit of Bulk, Absorption, and Float stage charging, increasing the charging capacity of the DLS charger and decreasing charge times while insuring proper and safe battery charging. In addition, The IQ insures proper battery charging while minimizing over-charging. This "smarter" technology monitors the battery at all times. If the DLS voltage remains in the long-term float stage more than 7 days, the IQ will automatically deliver an equalization charge for a predetermined time, then automatically return to the normal float stage.
The DSL 15, 30 and 55 are shipped with IQ module which requires a simple RJ11 hook up..
The DLS-75 power converter comes with the IQ Controller option internally integrated into the unit.
Bulk Charge
The batteries are charged from the full rated output of the DLS charger. During this stage, the batteries are recharged quickly to reduce charge times.
Absorption Charge
The batteries are then held in the absorption stage for a controlled period, insuring a full and complete charge. During this stage, the battery cells are equalized to 14.2vdc for increased capacity.
Float Charge
During the float stage, the DLS charge voltage is reduced to 13.6vdc. This minimizes gassing, while maintaining a full charge. If the battery voltage drops below 12.6vdc, the IQ will restart at the bulk charge stage and repeat this cycle.
Weekly Equalization
If the batteries have not received a "smart charge" during a 7 day period, the IQ will switch the DLS charger into a pre-programmed, equalization stage to top off the batteries. This ensures full batteries all of the time without over-charging!
IOTA Specifications
| |
15 AMP |
30 AMP |
55 Amp |
75 Amps |
| DC Output Voltage (No Load) approx. |
13.6 VDC |
13.6 VDC |
13.6 VDC |
13.6 VDC |
| Output Voltage Tolerance (No Load) |
+/- 0.7% |
+/- 0.7% |
+/- 0.7% |
+/- 0.7% |
| Output Amperage, Max Continuous |
15 amps |
30 amps |
55 amps |
75 amps |
| Output Voltage (Full Load) approx. |
13.4 VDC |
13.4 VDC |
13.4 VDC |
13.4 VDC |
| Maximum Output Amps Single Surge |
15 amps |
30 amps |
55 amps |
75 amps |
| Maximum Power Output, Continuous |
200 watts |
400 watts |
740 watts |
1000 watts |
| Ripple and Noise |
50 mV rms |
50 mV rms |
50 mV rms |
50 mV rms |
| Input Voltage Range |
96-140 VAC |
96-140 VAC |
96-140 VAC |
96-140 VAC |
| Input Voltage Frequency |
47-63 |
47-63 |
47-63 |
47-63 |
| Maximum AC Current @ 96VAC |
4 amps |
8 amps |
15 amps |
18 amps |
| Typical Efficiency |
80% |
80% |
80% |
80% |
| Max Inrush Current, Single Cycle |
8 amps |
16 amps |
20 amps |
22 amps |
| Short Circuit Protection |
Yes |
Yes |
Yes |
Yes |
| Overload Protection |
100% |
100% |
100% |
100% |
| Line Regulation |
100 mV rms |
100 mV rms |
100 mV rms |
100 mV rms |
| Load Regulation |
1% |
1% |
1.5% |
1.5% |
| Over Temperature |
Off @ 80C |
Off @ 80C |
Off @ 80C |
Off @ 80C |
| Fan Protection |
NA |
proportional |
proportional |
proportional |
| Working Temperature Range |
0 – 40C |
0 – 40C |
0 – 40C |
0 – 40C |
| Storage Temperature |
-20 to 80C |
-20 to 80C |
-20 to 80C |
-20 to 80C |
| Dimensions |
7 x 6.75 x 3.75 |
7 x 6.75 x 3.75 |
10 x 6.75 x 3.75 |
13 x 6.75 x 3.20 |
| Weight |
4.3 lbs |
5.4 lbs |
6.8 lbs |
10 lbs |