Sens MicroGenius S4 User manual

Getting Started
Connections - single/multiple output, no breakers
Need Help?
REFER TO THE USER MANUAL OR CONTACT SENS CUSTOMER SERVICE:
800-742-2326 / 303-678-7500 / [email protected]
USE YOUR SMART PHONE QR CODE READER TO ACCESS USER MANUAL
PATENTED US 9,270,140; 9,385,556; 9,413,186; 9,509,164; 9,466,995; 9,948,125
Automatic Battery Charger/Power Supply
REMOVE PLUGGABLE
ALARM TERMINAL BLOCK
TO INSTALL ALARM WIRES
SEE INSIDE COVER LABEL
FOR FACTORY ALARM
ASSIGNMENTS
CONNECT RS-485 MODBUS
OR J1939 NETWORK CABLE
TO RJ-45 CONNECTOR
(see user manual for
connector pinout, RJ-45 to
terminal block adapter p/n
208026 available from SENS)
*CONNECT TCP/IP MODBUS
NETWORK CABLE TO RJ-45
CONNECTOR
(optional feature)
CONNECT DC WIRES AT
TERMINAL BLOCKS
(multiple outputs optional)
SEE INSIDE COVER LABEL
FOR FACTORY OUTPUT
CONFIGURATION
REMOTE BATTERY
TEMPERATURE SENSORS
(optional, one per output)
CONNECT AC WIRES
AT TERMINAL BLOCKS
100-240VAC, 50/60HZ
SENSbus -CHARGER LOAD
SHARING, REMOTE
ACCESSORIES OR SENS
SETUP UTILITY
(do not connect J1939,
TCP/IP or RS-485 here)
*See user manual for details regarding J1939 and TCP/IP Modbus configuration
CONNECT
GROUND WIRE
Connections - single output with breakers
MULTIPLE OUTPUTS
OPTIONAL
(outputs share common
negative connection)
REMOTE BATTERY
TEMPERATURE SENSOR
(connect at leftmost
terminal block)
DO NOT CONNECT AT
TERMINAL BLOCK WHEN
BREAKER PRESENT
DO NOT CONNECT AT
TERMINAL BLOCK WHEN
BREAKER PRESENT
REMOVE PLUGGABLE
ALARM TERMINAL BLOCK
TO INSTALL ALARM WIRES
SEE INSIDE COVER LABEL
FOR FACTORY ALARM
ASSIGNMENTS
CONNECT RS-485 MODBUS
OR J1939 NETWORK CABLE
TO RJ-45 CONNECTOR
(see user manual for
connector pinout, RJ-45 to
terminal block adapter p/n
208026 available from SENS)
*CONNECT TCP/IP MODBUS
NETWORK CABLE TO RJ-45
CONNECTOR
(optional feature) CONNECT DC WIRES AT
BREAKER TERMINALS
SEE INSIDE COVER LABEL
FOR FACTORY OUTPUT
CONFIGURATION
CONNECT AC WIRES AT
BREAKER TERMINALS
100-240VAC, 50/60HZ
SENSbus -CHARGER LOAD
SHARING, REMOTE
ACCESSORIES OR SENS
SETUP UTILITY
(do not connect J1939, TCP/IP
or RS-485 here)
CONNECT
GROUND WIRE
CONNECT SENS SETUP
UTILITY TO USB WHEN
OPTIONAL TCP/IP
MODBUS PCA INCLUDED
CONNECT SENS SETUP
UTILITY TO USB WHEN
OPTIONAL TCP/IP
MODBUS PCA INCLUDED

reduces this risk, but will not eliminate it.
8.7 Remove personal metal items such as rings, bracelets, necklaces, and watches when
working with a storage battery. A storage battery can produce a short circuit current high
enough to weld a ring or the like to metal, causing a severe burn.
8.8 When charging batteries, charge 6 and 12 cell LEAD-ACID or 10 and 20 cell LIQUID
ELECTROLYTE NICKEL-CADMIUM batteries only, with rated capacity of 30 to 1100
Ampere hours. Certified for fire pump and emergency generator applications. For a 24
hour recharge time do not exceed 220 Ampere hours of capacity per 12A charger output
current. Do not use this battery charger to supply power to an extra-low voltage electrical
system or to charge any type of non-rechargeable, dry cell, alkaline, lithium, nickel-metal-
hydride, or sealed nickel-cadmium batteries that are commonly used with home
appliances. These batteries may burst and cause injuries to persons and damage to
property.
8.9 NEVER charge a frozen battery.
8.10 The charger contains a DC output fuse for internal fault protection, but this will not protect
the DC wiring from fault currents available from the battery. Consult national and local
ordinances to determine if additional battery fault protection is necessary in your
installation.
9. PREPARING BATTERY FOR CHARGE
9.1 Be sure area around battery is well ventilated while battery is being charged.
9.2 Ensure battery terminals are clean and properly tightened. Be careful to keep corrosion
from coming in contact with eyes.
9.3 Add distilled water in each cell until battery acid reaches level specified by battery
manufacturer. Do not overfill. For a battery without removable cell caps, such as valve
regulated lead acid batteries, carefully follow manufacturer’s recharging instructions.
9.4 Study all battery manufacturer specific precautions such as removing or not removing cell
caps while charging and recommended rate of charge.
10. CHARGER LOCATION
10.1 Locate the charger as far away from the battery as DC cables permit.
10.2 Never place charger directly above or below battery being charged; gases from battery will
corrode and damage charger.
10.3 Never allow battery acid to drip on charger when reading electrolyte specific gravity or
filling battery.
10.4 Do not operate charger in a closed-in area or restrict ventilation in any way.
10.5 Do not set anything on top of the charger.
IMPORTANT SAFETY INSTRUCTIONS
1. SAVE THESE INSTRUCTIONS –This guide contains important safety and operating instructions
for MicroGenius®S4 battery chargers.
2. Do not expose charger to rain or snow.
3. Use of an attachment not recommended or sold by the battery charger manufacturer may result in
a risk of fire, electric shock, or injury to persons.
4. This charger is intended for commercial and industrial use. ONLY TRAINED AND QUALIFIED
PERSONNEL MAY INSTALL AND SERVICE THIS UNIT.
5. Do not operate charger if it has received a sharp blow, been dropped, or otherwise damaged in
any way; shut off power at the branch circuit protectors and have the unit serviced or replaced by
qualified personnel.
6. To reduce risk of electric shock, disconnect branch circuit feeding charger before attempting any
maintenance or cleaning. Turning off controls will not reduce this risk.
7. WARNING – RISK OF EXPLOSIVE GASES
7.1 WORKING IN VICINITY OF A LEAD-ACID OR NICKEL-CADMIUM BATTERY IS
DANGEROUS. STORAGE BATTERIES GENERATE EXPLOSIVE GASES DURING
NORMAL BATTERY OPERATION. FOR THIS REASON, IT IS OF UTMOST
IMPORTANCE THAT YOU READ THIS DOCUMENT AND FOLLOW THE
INSTRUCTIONS EACH TIME YOU USE THE CHARGER.
7.2 To reduce the risk of battery explosion, follow these instructions and those published by
battery manufacturer and manufacturer of any equipment you intend to use in vicinity of
a battery. Review cautionary markings on these products
and on engine.
8. PERSONAL PRECAUTIONS
8.1 Someone should be within range of your voice or close enough to come to your aid when
you work near a storage battery.
8.2 Have plenty of fresh water and soap nearby in case battery electrolyte contacts skin,
clothing, or eyes.
8.3 Wear complete eye protection and clothing protection. Avoid touching eyes while working
near a storage battery.
8.4 If battery electrolyte contacts skin or clothing, wash immediately with soap and water. If
electrolyte enters eye, immediately flood the eye with running cold water for at least 10
minutes and get medical attention immediately.
8.5 NEVER smoke or allow a spark or flame in vicinity of battery or engine.
8.6 Be extra cautious to reduce risk of dropping a metal tool onto battery. It might spark or
short circuit battery or other electrical part that may cause explosion. Using insulated tools
For information and service on any SENS product, please contact us at:
Sales 1.866.736.7872 •303.678.7500 •Fax [phone] •www.sens-usa.com •[email protected]
Stored Energy Systems, LLC
1840 Industrial Circle, Longmont, CO 80501 USA
101329 Rev D Date Issued: 8/1/19© Stored Energy Systems, LLC 2018
PATENTED US 9,270,140; 9,385,556; 9,413,186; 9,509,164; 9,466,995; 9,948,125
Automatic Battery Charger/Power Supply
Power On - Connect battery then energize AC power
AC SOURCE
DISCONNECTED
100-240VAC
50/60HZ
BATTERY
DISCONNECTED
Note - Chargers configured to boost may be in boost for up to 24 hours at start-up if battery voltage is low
SEE APPLICATION NOTE 26 TO COMMISSION NICD BATTERIES
Mounting 
6”
(152 mm)
4” (102 mm)
ADEQUATE
AIR FLOW
0.5” (13 mm)
16.50”
(419.1mm)
15.50”
(393.7mm)
13.00”
(330.2mm)
14.25”
(362mm)
10.44”
(265.2mm)