Liquid Controls CENTRILOGiQ LCR.iQ Assembly Instructions

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Table of Contents
Adobe PDF Manuals ..................................................................................................... 4
Register Overview ........................................................................................................ 5
Publication Updates ..................................................................................................... 6
Safety Procedures ....................................................................................................... 7
ESD Protection ............................................................................................................ 9
Specifications ............................................................................................................ 11
Regulatory & Certifications ........................................................................................ 16
FCC Compliance ......................................................................................................... 19
Dimensions - Panel Mount ......................................................................................... 22
Dimensions - Meter Mount ......................................................................................... 24
Installation ................................................................................................................. 26
Wiring Diagram ....................................................................................................... 26
Ground Strap Kit .................................................................................................... 26
Attach Ground Strap ............................................................................................... 26
Check for a Good Ground ...................................................................................... 26
Mounting Overview ................................................................................................. 26
Mounting the Register ............................................................................................ 26
Routing the Data and Power Cables ....................................................................... 26
ETVC Installation .................................................................................................... 26
Valves ..................................................................................................................... 26
Single-Stage Valves .................................................................................................................. 26
Two-Stage Valves ..................................................................................................................... 26
Valve Installation ....................................................................................................................... 26
Optical Air and Vapor Eliminators ........................................................................... 26
Pulse Output Device ............................................................................................... 26
Differential Pressure Transducer ............................................................................ 26
Printers ................................................................................................................... 26
Power Supply .......................................................................................................... 26
Finalize the Installation ........................................................................................... 26
Spare Parts - External Components ........................................................................ 26
Spare Parts - Internal Components ......................................................................... 26
Spare Parts - Board Components ........................................................................... 26
Appendix A: K-Factor (Pulse/Unit) Chart .................................................................... 79
Appendix B: Data Types ............................................................................................. 80

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LCR.iQ/MasterLoad.iQ
Product Manual
Congratulations on ownership of the new LCR.iQ or MasterLoad.iQ electronic meter register
and controller. This manual provides the technical details on installation, hardware, setup,
operation, and regulatory information for your register.
NOTE: Throughout this manual, both the LCR.iQ and MASTERLOAD.iQ are
referred to as “Register” (unless otherwise specifically referenced by name).
The Register calculates, monitors and records volumetric data from bulk flow meters, provides
fluid transfer process customization and automation, ties in critical system sensors and inputs,
and bridges data communication between the operator, the equipment, and the operator’s
back office if necessary.
The Register is specially designed to work with leading bulk fuel meters such as LC and
Avery-Hardoll, but will easily retrofit into existing systems with other flow meter brands.
The Register provides many new features, yet supports backward compatibility with LCR-II
and LCR-600.

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Adobe PDF Manuals
Download either of the manuals using the links below:
· Liquid Controls LCR.iQ / MASTERLOAD.iQ Installation Manual
· Liquid Controls LCR.iQ / MASTERLOAD.iQ Operations Manual
To begin reading the online help, start with the Register Overview .
5

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Register Overview
The Register is a microprocessor-based electronic meter register that can be used for
Weights & Measures approved custody transfer actions in mobile or fixed installations. The
Register is a self-contained unit. All operation, setup, and configuration functions can be
carried out using the Register function keys and alphanumeric keypad. No lap pads, laptops,
or other data entry devices are required.
A complete Liquid Controls meter system not only accurately measures product, it also
regulates product flow and removes contaminants in order to produce the optimal conditions
for measurement. Typical systems include an air/vapor eliminator, strainer, meter, register,
and control valve.
Basic Functions
The principle functions of the Register registers include:
· Weights & Measures custody transfer (product delivery and ticket generation)
· Metrological data collection
· Preset deliveries by volume
· Multiple product selection
· Multi-point meter calibration
· Security settings
· Air and vapor elimination (with proper accessories)
· Single and dual stage valve control (with proper accessories)
· Electronic Temperature Volume Compensation (ETVC)

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Publication Updates
The most current versions of all Liquid Controls publications are available on our web site,
www.LCmeter.com/resources/technical/manuals. If there are questions about the language or
interpretation of any LC manuals, instructions, or specification sheets, please first contact your
local distributor for help with your inquiry.
For service related issues that require further support from the Liquid Controls Service Team,
please call the number below.
Liquid Controls Corporate Office:
Phone: [phone]
Toll-free: 800 458 5262
Address: Liquid Controls LLC, 105 Albrecht Drive, Lake Bluff, IL 60044 USA
Website: www.LCmeter.com

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Safety Procedures
BE PREPARED
· Before using this product, read and understand the instructions.
· All work must be performed by qualified personnel trained in the proper
application, installation, and maintenance of equipment and/or systems in
accordance with all applicable codes and ordinances.
· When handling electronic components/boards, always use proper Electrostatic
Discharge (ESD) equipment and follow proper procedures.
· Make sure that all necessary safety precautions have been taken.
· Provide for proper ventilation, temperature control, fire prevention, evacuation,
and fire management.
· Provide easy access to appropriate fire extinguishers for your product.
· Consult with your local fire department, state, and local codes to ensure
adequate preparation.
· Read this manual and all the literature provided in your owner’s packet.
· Save these instructions for future reference.
· Failure to follow the instructions in this publication could result in, personal
injury, or death from fire and/or explosion, property damage, or other hazards
that may be associated with this type of equipment.
SAFELY EVACUATE PIPING SYSTEM
Before disassembly of any meter or accessory component: ALL INTERNAL
PRESSURES MUST BE RELIEVED AND ALL LIQUID DRAINED FROM THE
SYSTEM IN ACCORDANCE WITH ALL APPLICABLE PROCEDURES.
· Pressure must be 0 (zero) psi.
· Close all liquid and vapor lines between the meter and liquid source.
Failure to follow this warning could result in property damage, personal
injury, or death from fire and/or explosion, or other hazards that may be
associated with this type of equipment.

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OBSERVE NATIONAL & LOCAL CODES
Power, input, and output (I/O) wiring must be in accordance with the area
classification for which it is used (Class I, Div 2). For North America, installations
must be per the U. S. National Electrical Code, NFPA 70, or the Canadian
Electrical Code in order to maintain Class I, Division 2 ratings. This may require
using connections or other adaptations in accordance with the requirements of
the authority having jurisdiction.
Peripheral equipment must be suitable for the hazardous location where it is
installed. (L'équipement périphérique doit être adapté à la zone dangereux où il
est installé.)
WARNING: Explosion Hazard
When in hazardous locations, turn power OFF before replacing or wiring
modules. (Lorsque dans des endroits dangereux, coupler le courant avant de
remplacer ou de câbler des modules.)
DO NOT disconnect equipment unless power has been switched OFF or the area
is known to be Non-Hazardous. (NE PAS déconnecter l'équipement san coupler
l'alimentation ou sans s'assurer que la zone est non dangereuse.)
WARNING: Use 3.5 in • lb (0.4 N • m) torque when tightening terminal block
screws.

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ESD Protection
ESD Precaution
Opening the Registers
Follow this procedure each time you open the Register or approach it with the door open:
Before opening the Register and handling the CPU board, it's important to discharge any
ESD that may have built up on your person. To discharge ESD from your person, touch a
well-grounded point–such as the Register housing, the meter, truck piping, or the bumper.
When the maintenance is complete and the Register door is closed, the CPU board is
protected from ESD by the Register housing which is grounded to the chassis.
Preventing ESD Damage
To prevent electrostatic discharge (ESD) damage to the Register, truck installations must
properly ground the truck seat cushion and the Epson printer chassis. Prolonged exposure to
ESD over weeks, months, or years can corrupt register memory and damage the electronic
components in Register registers (as well as other electrical components in the truck electrical
system).
Adjustable, shock-absorbing seats, if not grounded correctly, generate significant amounts of
ESD. The pivots and hinges of these seats isolate the seat cushion from an electrical ground.
Without proper bonding, static electric charge builds between the seat cushion and the
operator. This electric charge can enter the Register from any point in the truck electrical
system, including register power and printer cabling.
Liquid Controls Grounding Kits
All truck installations of the Register must have grounded seats and printers using the following
kits:
· Ground Strap Kit (LC Part Number 82185)
· Epson Printer Ground Wire Kit (LC Part Number 82184)
Properly grounded seats allow static electricity to ‘bleed off’ before it can build up, discharge,
and damage the Register or other electrical components.

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The Epson Printer Ground Wire Kit is included with each Epson printer cable kit shipment. For
existing installations and previously purchased registers / printers, both ground kits are
available from LC.
Grounding with a Meter Mount or Remote Mount
In an installation where the Register is mounted directly to the meter, the Register housing is
grounded through the meter. If the register is not mounted on the meter, you must ensure the
Register housing is grounded properly.
Alternate grounding methods for remote mounted registers
For installations where grounding the register housing through a mount is not possible, an
external grounding screw hole is available. This hole requires a #8-32 x 1/4” ground screw–
which is supplied with the register (the LC part number for the screw is 08254)–and also a 12
gauge or larger stranded wire connected to a known ground (less than 1 ohm).
Another option is to connect the ground screw 8-32 x 1/4” ground screw (inside the Register
housing) to a 12 gauge or larger stranded wire connected to a known ground (less than 1
ohm).

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Specifications
Mechanical
Housing and Keypad
The Register housing and bases are aluminum die castings with chromate protective finishing
and powder coated with high durability, urethane powder. The cover internal hinge design
provides easy access to the internal connections and keeps all moving hinge parts out of the
elements to further prevent corrosion. Weights and Measures features are accessible by
using a seal-able fastener on the side of the cover. There are 11 half-inch NPT ports, on the
back of the Register to provide secure cable connections for a wide range of external devices.
Construction Materials
· High grade A360 Die Cast Aluminum, enclosure cover, and enclosure base
· Chromate finish with powder-coat protective coating
· Tempered glass display window
· Silicone display glass seal
· Stainless steel display bracket
· Silicone door seal
· Keypad – Membrane Switch with back-lit silicone overlay
· Stainless steel fasteners/hardware
· Stainless steel bonded silicone sealing washer
Certified Operational Temperature Rating
· The Register is certified for normal operation within the temperature range of -40 to 140 °
F (-40 to 60 °C).
Display
· 7 inch heavy duty, high definition TFT/LCD (Thin Film Transistor Liquid Crystal Display)
video display with LED backlight unit.

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· 800 x 480 pixels (152.4 mm x 91.4 mm)
· Luminance: 1500 (cd/m2)
· Display acceptable operation or storage temperature -40 °F to 185 °F (-40 °C to 85 °C).
Weight
· Approximately 12 lbs (Meter Mount Version, no added accessories)
· Approximately 11 lbs (Panel Mount Version, no added accessories)
Cable Entry
· Eleven (11), 1/2" NPT (1/2-14 NPT) threaded ports
Alphanumeric Keypad
The Register alphanumeric keypad is made of petroleum resistant silicone and consists of 12
large alpha-numeric keys, 5 navigation keys, and 5 function keys that relate to the adjacent
display indicators for operator-guided functionality. The keys, when pressed, give the operator
a tactile, positive confirmation of keystrokes. The keypad multi-tap functionality also allows
users to input up to four alpha-numeric characters on a single key.
Electrical
Inputs
Inputs are configurable in the Register to handle a variety of external accessories that provide
data signals in the metering system including pulse input and a variety of external sensors.
Register Input Voltage
· Voltage – 9 to 28 VDC
· Current maximum: 5 A maximum

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Pulse Input
In order to calculate flow measurements when mounted to a positive displacement meter, the
Register receives a pulse input from a quadrature pulser that is mechanically connected to the
flow meter output shaft (meter mount option only). A pulse input can also come from an
external device such as a Liquid Controls Pulse Output Device (POD) or another externally
mounted pulse generator. If an external LC POD is purchased, these materials are
necessary, but are not supplied with the POD:
· 16-22 AWG 4 conductor Shielded Cable (Consult the POD manual for complete
specifications)
· Weather Proof flexible conduit or loom
· ½” Conduit connectors or cable glands
RTD Temperature Probe
The Register is equipped with an input for a temperature probe, so the register can read
realtime temperature as well as compensate volume measurements according to the
temperature of the product.
· 4 wire platinum sensor
· 100 Ω resistance at 0 C
· 138.5 Ω resistance at 100 C
Optical Air Eliminator
The Register is equipped to handle an optical air eliminator input:
· Voltage – 10 to 28 VDC
· Current – 0.5 Amp maximum
Digital Inputs 1, 2, 3, 4, 5, and 6
· Active Low, normally pulled high

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· Voltage: 5 to 28 VDC
· Current: 3 mA maximum sink current
· Maximum Frequency: 10 kHz
OUTPUTS
The Register is equipped with six digital outputs and four solenoid outputs. These outputs allow
the Register to communicate with meter system accessories such as solenoid- controlled
valves, optical air and vapor eliminators, remote displays, printers, and third-party devices.
Digital Outputs 1, 2, 3, 4, 5, and 6
· Open drain output, active low to ground, thermally protected
· Voltage: 5 to 28 VDC
· Current: 500 mA maximum
Outputs for solenoids 1, 2, 3, and 4
· Open drain output, active low to ground, thermally protected
· Voltage: 12 VDC nominal
· Current: 1 A maximum
· Voltage: 24 VDC nominal
· Current: 0.5 A maximum
Pulse Output
· Voltage peak to peak – 5 to 28 V
· Frequency maximum – 7500 Hz
Scale Pulse Output
· Current sinking capability: 150 mA

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Electrical Protection
· 5 A fuse on power cable
COMMUNICATIONS
· RS-232
· RS-485
· CAN BUS – Consult the applicable Chassis Builder’s Guide, available from the truck
chassis manufacturer.
· Ethernet (Gigabit)
· Bluetooth (wireless)
· Wi-Fi (wireless)
Printer (Epson Model 295)
· Voltage – 24 VDC
· Current – 0.8 Amp maximum
· Operating Temperature – -22 to 104 ºF (-30 to 40 ºC)

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Regulatory & Certifications
The equipment is Listed by UL to applicable US and Canadian standards for use in hazardous
locations under Liquid Controls file E180172.
LCR.iQ Serial Number tag
MASTERLOAD.iQ Serial Number tag
Class I
· Potentially Explosive Gas/Vapor Atmospheres.

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Division 2 and Zone II
· Gases and vapor are not normally present in an explosive concentration but may
accidentally exist during abnormal operations.
Grp C&D and Grp IIB
· Flammable/explosive Gas groups.
T4
·
ambient temperature. At the rated maximum ambient temperature, the equipment will not
generate temperature higher than 135 °C
· Safe limits of ambient temperature.
IP66
· Ingress protection: dust tight and protected against powerful water jetting.
Type 4X
· The enclosure has been evaluated by UL for outdoor use to provide protection against
water and dust and an increased level of protection against corrosion; and that will be
undamaged by the external formation of ice.

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Specifications

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FCC Compliance
Unique Identifier: LCR.iQ or MasterLoad.iQ
Responsible Party:
Liquid Controls LLC
105 Albrecht Drive
Lake Bluff, IL 60044 USA
www.LCmeter.com
FCC Compliance Statement: This device complies with Part 15 of the FCC Rules. Operation
is subject to the following two conditions: (1) This device may not cause harmful interference,
and (2) this device must accept any interference received, including interference that may
cause undesired operation.
This device contains FCC ID Z64-WL18DBMOD, IC: 451I-WL18DBMOD, and may optionally
contain FCC ID MCQ-XBPS3B, IC: 1846A-XBPS3B (DIGI Module).
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications. However, there is
no guarantee that interference will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which can be determined by turning
the equipment off and on, the user is encouraged to try to correct the interference by one or
more of the following measures:
· Reorient or relocate the receiving antenna.
· Increase the separation between the equipment and receiver.

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· Connect the equipment into an outlet on a circuit different from that to which the receiver
is connected.
· Consult the dealer or an experienced radio/TV technician for help.
Any changes or modifications to this equipment, not expressly approved by Liquid Controls
could void the user’s authority to operate the equipment.
This device complies with the ISED Canada license-exempt RSS standard(s). Operation is
subject to the following two conditions: (1) This device may not cause harmful interference,
and (2) this device must accept any interference received, including interference that may
cause undesired operation.
Cet appareil est conforme à la norme RSS exempte de licence d'ISED Canada. L'opération
est sous réserve des deux conditions suivantes: (1) Cet appareil ne doit pas causer
d'interférences; et (2) Cet appareil doit accepter toute interference fonctionnement indésirable
de l'appareil CAN ICES-3(B)/NMB-3(B)
This device could automatically discontinue transmission in case of absence of information to
transmit or operational failure. Note that this is not intended to prohibit transmission of control
or signaling information or the use of repetitive codes where required by the technology.
The device for operation in the band 5150-5250 MHz is only for indoor use to reduce the
potential for harmful interference to co-channel mobile satellite systems.
High power radars are allocated primary users (i.e. priority users) of the bands 5250-
5350MHz and 5650-5850MHz and that these radars could cause interference and or damage
to the Wi-Fi transceiver.
This equipment complies with the FCC/IC radiation exposure limits set forth for an uncontrolled
environment.
Only antennas specified by Liquid Controls shall be used with this equipment.
The antenna for this equipment shall be installed and operated to maintain a separation
distance of 20 cm or greater between the antenna and any person.