SENS MicroGenius S2/S4 Technical Manual
6
3 PERFORMANCE SPECIFICATIONS
MicroGenius
® S2/S4 is a switchmode, regulated, filtered, microprocessor-controlled, current limited battery
charger designed for heavy-duty industrial service. Chargers may be configured for three primary applications: 1)
DC power and standby battery charging for industrial control and safety systems, 2) DC power supply and battery
charging for marine environments and 3) quick recharge and long life maintenance of engine start batteries. The
charger is provided in two enclosure sizes (S2 and S4) and with various output options. Every model provides
Modbus and J1939 communications, 5 alarm relays, easily readable alpha-numeric display and keypad. Optional
features include breakers, supplemental surge protectors, TCP/IP Modbus with native USB, IP22 drip shield as well
as multiple outputs configured to different output voltages. Charger specifications are detailed in the table below,
see following sections for installation and operation instructions.
Table 1 – Specifications
S2: 8 Amps maximum (at 100 VAC)
S4: 16 Amps maximum (at 100 VAC)
Supplementary overcurrent protection fuse (non-replaceable);
transient protected to EN61000-4-5 level 4
2-pole circuit breaker (optional with S4)
Supplemental surge protection (optional with S4). Surge protective
device is field replaceable.
Up to 93%; meets CA Energy Commission (CEC) Title 20 Appliance
Efficiency Regulations
>.95 typical at maximum rated load current and boost charge voltage
12/24V nominal; multiple output assignments (optional); adjustable
from 0-34V using front panel keypad or computer to charger
cable/native USB (optional) and SENS Setup Utility Kit (SENS p/n
209254 plus SENS software available at www.sens-usa.com)
15-60 Amps, see section 2. Output power reduced by approximately
20% for output voltages greater than 24 VDC when input voltage is
Charger gradually increases current with a maximum of 5 seconds to
full-required output
Multi-stage, including float, boost and commissioning charge modes
Flooded lead-acid, AGM, Ni-Cd, VRLA, ultracapacitor
DC power supply
operation
Delivers fast-responding, stable, well-filtered DC without battery
100% current capability subject to temperature limits and AC voltage
limits; field adjustable
Constant voltage, current limited; patented Dynamic Boost control
<30mVrms with or without battery
compensation
On-board sensor controls changes in output voltage when
temperature is between 0°C and +40°C at a rate of – 0.18% per
degree C; optional remote battery temperature probe (SENS p/n
209481); remote temperature probe connections provided for each
Current limit, supplementary overcurrent protection fuse (non-
replaceable), transient protected
2-pole circuit breaker (optional with S4)
Supplemental surge protection (optional with S4). Surge protective