Lamarche LMES Pro User manual

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This manual is subject to change without notice. You may obtain the newest version of the manual at www.lamarchemfg.com
106 Bradrock Dr. Des Plaines, IL 60018-1967
CPN 144074
Instruction Drawing Number: P25-LLMESP-01
Tel: [phone]
Fax: [phone]
Revision A00
Rev. Date: 03/21
ECN:22774
La Marche Manufacturing Company | www.lamarchemfg.com
LMESpro
Smart Battery/HCAP Charger
Installation and Operation Manual

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Important Safety Instructions
Before using this equipment read, all manuals and other documents related to this unit and other equipment
connected to this unit. Always have a copy of a unit's manual on file nearby, in a safe place; if a replacement
copy of a manual is needed, it can be found at www.lamarchemfg.com.
Electrical Safety
Hazardous Voltages are present at the input of power systems. The output from rectifiers and from
batteries may be low in voltage, but can have a very high current capacity that may cause severe or
even fatal injury.
When working with any live battery or power system, follow these precautions:
•Never work alone on any live power system; someone should always be close enough to come to your
aid
•Remove personal metal items such as rings, bracelets, necklaces, and watches.
•Wear complete eye protection (with side shields) and clothing protection.
•Always wear gloves and use insulated hand tools.
WARNING : Lethal Voltages are present within the power system. Parts inside the unit may still be
energized even when the unit has been disconnected from the AC input power. Check with a meter
before proceeding. Do not touch any uninsulated parts.
A licensed electrician should be used in the installation of any unit.
•Always disconnect the unit from the supply and batteries before performing maintenance or cleaning.
•Always assume that an electrical connection is live and check the connection relative to ground.
•Be sure that neither liquids nor any wet material comes in contact with any internal components.
•Do not operate this unit outside the input and output ratings listed on the unit nameplate.
•Do not use this unit for any purpose not described in the operation manual.
Mechanical Safety
•This unit or parts of the unit may get very hot during normal operation; use care when working nearby.
•Do not expose equipment to rain or snow. Always install in a clean, dry location.
•Do not operate equipment if it has received a sharp blow, been dropped, or otherwise damaged in any
way.
•Do not disassemble this unit. Incorrect re-assembly may result in a risk of electric shock or fire.
Battery Safety
WARNING : Follow all of the battery manufacturer’s safety recommendations when working with or
around battery systems. DO NOT smoke or introduce a spark or open flame in the vicinity of a battery.
Some batteries generate explosive gases during normal battery operation.
•To reduce risk of arc, connect and disconnect the battery only when the unit is off.
•If it is necessary to remove the battery connections, always remove the grounded terminal from the
battery first.
•Remove personal metal items such as rings, bracelets, necklaces, and watches.
•Always wear rubber gloves, safety glasses, and a rubber lined vest/apron when working near a battery.
•Have plenty of fresh water and soap nearby in case the battery electrolyte contacts skin, clothing, or
eyes.
•If the battery electrolyte contacts skin or clothing, wash immediately with soap and water.
•If the electrolyte enters the eye, immediately flood the eye with running cold water for at least ten (10)
minutes and seek medical attention immediately.
•Do not drop metal on a battery. A spark or short-circuit could occur and lead to an explosion.

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Charger Location
•Provide at least 6 inches of free space left/right, and at least 6-inches of free space top/bottom for proper
cooling.
•Do not operate this unit in a closed-in area or restrict ventilation in any way.
•Do not set any battery on top of this unit.
•Never allow battery electrolyte to drip on this unit. Take care when reading the specific gravity or filling
the battery.
•Never place this unit directly above a standard flooded battery. Gases from the battery will corrode and
damage equipment.
•A sealed maintenance free or valve regulated lead acid (VRLA) battery may be placed below this
equipment.
•Do not mount directly above another heat source.
•The charger must be mounted upright as to promote convection air flow through the external heat-sink.
•See Installation & Mounting sections.
Check for Damage
Prior to unpacking the product, note any damage to the shipping container. Unpack the product and inspect the
exterior of product for damage. If any damage is observed, contact the carrier immediately. Continue the
inspection for any internal damage. In the unlikely event of internal damage, please inform the carrier and contact
La Marche for advice on the risk due to any damage before installing the product. Verify that you have all the
necessary parts as per your order for proper assembly.
CAUTION: Failure to properly file a claim for shipping damages, or provide a copy of the claim to La
Marche, may void warranty service for any physical damages reported for repair.
Returns for Service
Save the original shipping container. If the product needs to be returned for service, it should be packaged in its
original shipping container. If the original container is damaged/unavailable, make sure the product is packed
with at least three inches of shock-absorbing material to prevent shipping damage. La Marche is not responsible
for damage caused by improper packaging of returned products.
Inspection Checklist
Enclosure exterior is not marred or cracked.
All externally accessible hardware and connections are tight.
All items on packing list have been included.
Precautions
•Do not operate this system in direct sunlight, in contact with fluids, or where there is excessive dust or
humidity.
•Allow adequate space for proper ventilation. (See Charger Location & Installation Mounting sections)
•Connect the charger AC input wiring to an appropriately rated circuit. The AC circuit should be able to
continuously support the charger’s full rated input current and have an upstream OCPD at least rated to
meet or exceed that of the charger’s input fuses.
•Do not attempt to operate the LMESpro with the cover removed; lethal voltages exceeding 400V inside.

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Table of Contents
Important Safety Instructions ........................................................................................................................ i
Electrical Safety ........................................................................................................................................ i
Mechanical Safety ..................................................................................................................................... i
Battery Safety........................................................................................................................................... i
Charger Location ......................................................................................................................................ii
Check for Damage ....................................................................................................................................ii
Returns for Service ...................................................................................................................................ii
Inspection Checklist ..................................................................................................................................ii
Precautions ..............................................................................................................................................ii
Table of Contents ........................................................................................................................................iii
Model Scope/General Description.................................................................................................................. 1
Understanding the Model Number............................................................................................................. 1
Optional Accessories Included in the Charger ............................................................................................ 1
Features.................................................................................................................................................. 2
Protection................................................................................................................................................ 2
1Installation .......................................................................................................................................... 3
1.1 Mounting ...................................................................................................................................... 3
1.2 Electrical Connections.................................................................................................................... 4
1.2.1 AC Input Connections ............................................................................................................ 5
1.2.2 DC Output Connections .......................................................................................................... 6
1.2.3 Remote Temperature Probe Connection .................................................................................. 6
2Operation............................................................................................................................................ 7
2.1 Initial Setup .................................................................................................................................. 7
2.2 DIP Switch Settings....................................................................................................................... 7
2.3 Lead Acid - Four Stage Charge Curve ............................................................................................. 8
2.4 HCAP - Four Stage Charge Curve ................................................................................................... 9
2.5 Indication Details .........................................................................................................................10
2.6 Fault Indications and Alarms.........................................................................................................10
2.7 Reset Button................................................................................................................................11
3Service...............................................................................................................................................12
3.1 User Serviceable Parts ..................................................................................................................12
3.2 Performing Routine Maintenance...................................................................................................13
3.3 Troubleshooting Procedure ...........................................................................................................13
Appendix A: LMESpro Technical Specifications.............................................................................................14
Appendix B: Power Cabling Guide ................................................................................................................15
Appendix C: Manufacturer’s Warranty ..........................................................................................................16
Appendix D: Document Control and Revision History.....................................................................................17

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Model Scope/General Description
The La Marche LMESpro is a battery charger, which utilizes advanced high frequency switch-mode technology
and active power factor correction; meeting strict CEC Efficiency requirements. It is specially designed to meet
the requirements of charging Lead Acid & NiCad batteries, or HCAPS (Hybrid Asymmetric LiC Supercapacitors).
The LMESpro battery charger is designed to recharge and extend battery life utilizing multi-stage charging. This
charger is completely automatic, lightweight and convection cooled. It offers a Universal AC-Input, and the output
is selectable for either 12 VDC or 24 VDC.
Understanding the Model Number
The LMESpro model number is coded to describe the options that are included. Find the model number on the
nomenclature nameplate of the charger. Follow the chart to determine the configuration of your battery charger.
Optional Accessories Included in the Charger
This charger may have been outfitted with several optional accessories or option packages. To determine the
options included (if any) refer to the cover page of the manual package. If the manual package that is included
with the charger is no longer available, contact La Marche and provide the model & serial number of the charger
to receive a list of the included accessories.
Front View
Bottom View

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Features
➢Microprocessor Controlled High Frequency Switch-Mode Technology
➢Single Phase Wide Range Universal AC Input: 105 Vac - 264 Vac, 50/60Hz
➢Complete Galvanic Isolation from AC to DC
➢Soft Start, Short Circuit Protection, Over Voltage, Over Temperature Protection, Reverse Polarity, and
Input/Output Transient Overvoltage Protection
➢Four Stage Battery Charging Algorithms (Unique Lead-Acid, and HCAP algorithms)
➢Automatic High Battery Cutout Protection
➢Low Noise & High Reliability
➢Convection Cooled with Over Temperature Protection
➢Lightweight with Sleek Aesthetic Looks
➢Temperature Compensation
➢Remote Temperature Sensor available.
Battery/HCAP charging voltage is temperature compensated (temp-comp) when the remote temperature probe
is connected to the remote temperature sensor (RTS) terminal with the correct polarity.
Temperature Compensation Coefficient (25°C Reference Temp.) & Compensation Range:
•Lead Acid: -3mV/cell/°C, from 0°C to +50°C
•HCAP: -6mV/°C in 12V mode & -12mV/°C in 24V mode, from -25°C to +70°C
•NiCad: Not available.
Protection
➢Temperature Compensation
With temperature compensation, the output voltage is adjusted according to the temperature to prolong
the life of the battery or HCAP. The charger also detects an open or shorted external probe. When the
temperature probe is not connected or defective, temperature compensation is disabled.
➢High DC Protection
If 24V DC battery is connected to the charger when 12V mode is selected, it will shut down in High DC
protection. No damage will occur to the charger.
➢Output Short Circuit Protection
Short circuit protection is triggered when the battery voltage drops below 6V in 12V mode, or 12V in 24V
mode. The output of the charger is then turned off to protect the circuitry. The charger output will self-
recover in 2 minutes in a soft start mode to charge the battery.
➢Output Current/Overload Protection
When demand exceeds 100% of rated DC output current, the charger limits the current and reduces the
output DC voltage to protect the charger.
➢Thermal Protection
Charger is protected from over-temperature. The charger will derate by 30% due to over-temperature
when ≥ 70°C (internal). For extreme overtemperature situations, thermal shutdown is activated when ≥
85°C (internal). In both cases, as the temperature returns to 60°C (internal), the full output capability is
automatically restored. (Note: Thermal protection does not activate when the charger is operating at full
output current & operating in a 50°C ambient.)

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1 Installation
1.1 Mounting
When mounting the LMESpro, the location chosen for the charger should be within an ambient temperature range
of -40 to 122˚F (-40 to 50˚C) with a non-condensing relative humidity no higher than 95%. The LMESpro should
be mounted in an area free of flammable & explosive materials and away from drips, splatter, or moving parts.
To be mounted on a non-combustible surface. The LMESpro utilizes convection cooling with a heat-sink facing
the mounting surface; mount in an upright position as shown in Figure 1 to promote convection air flow. Provide
clearance for at least 6in (152mm) of free air must be maintained on the left/right sides, and at least 6”(152mm)
top/bottom sides for cooling. Maintain 36in (914mm) or more of clearance at the front of the charger in order to
allow for operation and maintenance. Install the LMESpro using appropriate hardware on the wall. When using
multiple adjacent LMESpro chargers, do not mount them 1 above the other, mount them side-by-side with a
minimum of 6” between them. Avoid mounting the LMESpro directly over another heat source.
Figure 1 –LMESpro Mounting Dimensions
Figure 2 - Distance to obstruction of free air flow

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1.2 Electrical Connections
Before beginning installation of electrical connections, ensure that all sources (AC & DC) are de-energized; verify
that no voltage is present on the field wiring by using a voltmeter. Check that the source voltage and frequency
match the charger’s specifications. Select field wire size using Table 1 below.
Wire terminal table
AC Input Terminal
Line-1, GND, N/L2
DC Output Terminal
Pos & Neg
Remote Temperature
Probe
+ + & - -
Minimum Recommended
Wire Size *
18Ga
14Ga
Optional accessory supplied
by La Marche. Temp probe
includes correct wire size,
pre-crimped ferrules, and is
marked (+ + & - -)
Range of wire sizes
which fit the LMESpro
push-in spring terminals
18ga →14Ga stripped
18ga →14Ga w/ferrule
14Ga →8Ga stripped
14Ga →10Ga w/ferrule
Wire Strip Length
(Inch”/mm)
0.4” / 10mm
0.6” / 15mm
Table 1 –AC/DC & Ground Wire Size Minimum Requirements
(All wires specified in the table are copper rated at 90 °C or 194 °F)
*NOTE: These are minimum recommended sizes per La Marche Standards. The National Electrical Code (NEC)
and Local Wiring Codes must be followed.
The LMESpro utilizes spring-loaded push-in style connectors. It is recommended to use wire crimp ferrules on
the AC & DC field wiring when installing the charger, however it is not absolutely necessary. Crimp ferrules will
prevent wire strands from fraying near the connectors. Being spring-loaded, the connectors are highly resistant
to vibration and do not require periodic torque checks as with a screw-terminal. See Figure-2.
To connect field wiring, you can simply push in the prepared conductors until fully seated. To make the wires
easy to push-in, you may insert a small flat-head screwdriver tip into the rectangular opening above the wire
entry to relieve spring-tension on the wire connection.
Figure 3 - Wire installation
To remove a wire connection (on a completely de-energized system AC & DC), insert a small screwdriver tip in
the rectangular opening above the wire to release spring pressure, then pull the wire out. See Figure 3.

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Figure 4 –Removing a wire from the connector
1.2.1 AC Input Connections
Check that the source voltage and frequency match the charger specifications. Select wire size using Table 1.
Before connecting the Battery/HCAP and/or DC loads, Refer to Section 2.2 for the configuration instructions. For
AC Terminal location refer to Figure 5.
•For AC systems with a line and neutral such as 120Vac service in North America, connect Line to the “L”
& neutral to the “N”.
•For AC systems with “2-hot leads” or Line-1 & Line-2 such as 240Vac service in North America, connect
Line-1 to “L” & Line-2 to “N”.
•All installations require the Ground terminal to be connected to the AC service Ground/Earth wire.
•All installations require 3-wire connections to the AC Input connector
Figure 5 –LMESpro AC/GND Connections

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1.2.2 DC Output Connections
Select proper size for the DC wiring from the wire size from Table 1. If the distance between the charger’s DC
output and the DC load exceeds 10 feet, use the Power Cabling Guide on Appendix B to minimize the voltage
drop across the wire distance. Connect DC output wires with the correct polarity connection as shown in Figure 3
below.
Figure 6 –LMESpro Output/Temp Sensor Connections
CAUTION: When connecting the DC cables to the battery, be certain the positive terminal of the charger
is connected to the positive battery terminal and the negative terminal is connected to the negative
battery terminal.
CAUTION: Do not touch the charger while it is in operation or just after de-energizing the charger as
the LMESpro heat-sink can become very hot during operation.
1.2.3 Remote Temperature Probe Connection
It is recommended to use temperature compensated charging with Lead-Acid & HCAPS, especially in environments
having a wide temperature range. La Marche supplies optional remote temperature probes (RTS) in two lengths
option 11W –24ft and option 11Y –100ft with crimp ferules already attached for connection to the charger, and
a 3/8” dia ring-terminal for connection to the battery.
•Connect the crimp ferrule end of the RTS to the LMESpro. See polarity markings (++++ & - - - -)
•Connect the ring-terminal to the negative terminal of the Battery/HCAP.