Liquid Controls FlightConnect 600 - Manual (Page 49)

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lcr 600 InputS and outputS
lectrocount lcr 600 Inputs and outputs
The LCR 600 can communicate with a number of components on a Liquid Controls flowmeter system. The following
pages provide a brief description of the components, a drawing identifying these components on the flowmeter
system, and a list of the LCR 600 commands and fields that correspond to each component.
Internal pulSer
Typically, an internal pulser is mounted to the bottom
of the LCR 600 housing. A small shaft extends from
the bottom of the internal pulser through the LCR 600
housing where it attaches to a drive shaft. The drive
shaft turns directly off of the rotors inside the Liquid
Controls flowmeter. When the internal pulser shaft spins,
the pulser manufactures a two channel quadrature pulse
output. The LCR 600 uses the pulse output to calculate
flow measurements. The number of pulses equal to a
unit of measurement is set during calibration and proving
in the Pulse/Unit : field.
temperature probe
The optional temperature probe, part of the Electronic
Temperature Volume Compensation (ETVC) kit,
monitors the temperature of the product being
measured. Because the volume of many products
expand and constrict considerably according to
temperature fluctuations, the LCR 600 corrects the
volume measurement to a base temperature (60º F for
example).
prInter
Together, the LCR 600 and the Epson printer can print
out four types of tickets (fueling, duplicate fueling,
shift, and diagnostic). With the FlightConnect LCR 600
application, the fueling ticket is configured at set up and
only prints data specific to the fueling options selected.
The LCR 600 provides a “require ticket feature” to meet
Weights & Measures standards and prevent unrecorded
fuelings.
S1 SolenoId
When energized by the LCR 600, the S1 solenoid-
operated valve opens the control valve on the outlet
side of the flowmeter, allowing product to flow through
the valve. When the S1 is deengergized, the control
valve shuts off the product flow. The LCR 600 switches
the S1 solenoid via the selector switch (RUN and
STOP positions) and during two stage preset fuelings
(according to the S1 Close: value).
∆P TRanSduCER
The differential pressure transducer, common in aviation
applications, monitors the differential pressure (pressure
drop) across a full flow fuel monitor/water coalescer. The
highest differential pressure reached during the custody
transfer is printed on the fueling ticket and displayed
on the screen. If the differential pressure reaches a
dangerous level, the LCR 600 can shut down the fueling.
To set up a differential pressure shutdown value, a
shutdown device (such as a valve or a dead-man) must
be connected to the LCR 600, and a differential pressure
shutdown value must be entered into the dP Shutdown
Value: field.
auxIlIary outputS
The LCR 600 provides three open drain transistor
auxiliary outputs for different external devices such as
pump controls and additive injectors. Two of the outputs
have settings that can be set in the Auxiliary 1
output: (Off, On, On During Delivery, and Monitor
Flowrate) and Auxiliary 2 output: (Off, On, On
During Delivery, and Flow Direction) fields. The LCR
600 also provides auxiliary output connections for the
LectroCount Remote Display (other types of displays
are usually compatible). Signals from these outputs
duplicate the volume data sent to the LCR 600 display.
The FlightConnect additive field, if
activated, will override these fields.