Specification Sheet
Issued 8/24/10
Revision 0
VA001-066-43
LineGuard 2300
The LineGuard 2300 Electronic linebreak detection
system monitors natural gas pipeline pressure and
rate of pressure drop, and can provide manual or
automatic control of a single valve actuator at a
station site or a remote site. This economical safety
device reliably and accurately performs gas pressure
calculations, actuator control, data sampling and
archival, and remote communications.
The LineGuard 2300 Electronic linebreak detection
system has a weather-tight enclosure, with a LCD
touchpad display. This self-contained controller has a
processor circuit board, internal batteries, a wire
termination board, an integral line-pressure
transducer, an integral solenoid and terminal wiring
for a 3- or 4- wire RTD. It also has additional I/O
nd
points for an optional 2 pressure transducer and/or a
nd
2 solenoid.
The basic LineGuard 2300 unit consists of the
following components and features:
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A 32-bit processor board, 2 MB for flash ROM,
and 2 MB of SRAM for data storage
Pressure transducer for static pressure and ROD
measurement
Weather-tight CSA Type 4 enclosure
Eight-line by twenty-one character touchpad
display
Local Operator Interface port (LOI)
RS-485 or RS-232 Communication Port (Built
into CPU module)
Support for a 3- or 4- wire 100 ohm RTD
Five diagnostic analog input monitoring logical
voltage, battery voltage, charge in voltage,
system milliamps and board temperature
Solenoid Valve, 12 VDC, 1.4 Watts
Discrete Output relay(s) rated 30 VDC at 1.0
amps max.
Valve Automation
The LineGuard 2300 utilizes a 32-bit microprocessor,
which incorporates low-power operating modes. The
LineGuard 2300 comes standard with 2 MB of built-in
Static Random Access Memory (SRAM) for storing data
and history. Backup power for the RAM is supplied by a
small lithium battery. The LineGuard 2300 also has 2
MB of programmable Read-Only Memory (flash ROM)
for storing operating system firmware, configuration
parameters, and applications firmware.
Firmware - The firmware provides the following
functionality.
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Calculation of average high and low line pressure
and high rate of pressure drop based on a
selectable number of samples (1 to 12)
Auto-closure capability to energize the solenoid
Time delay before acceptance of a major event
Solenoid time-out
Memory logging of 100 minor event pressure logs
Memory logging of 100 minor event ROD logs
Memory logging of 1 major event pressure logs
Memory logging of 1 major event ROD logs
Memory logging of 240 alarms and 240 events
Standard History Archival of 35 days of hourly
data for up to 35 points
Extended History Archival for up to 15 points at a
configurable interval
Alarm call-out to a host, known as Spontaneous
Report By Exception (SRBX)
Modbus ASCII and RTU slave or host protocols
Fisher ROC protocol support
User C programs support for specialty applications
Pass-Through communications on multiple
ports
Specification Sheet
VA001-066-43
Configuration Software - The field I/O, pressure
sensor inputs, linebreak calculation, history logging,
and all other functions are accessed and configured
using ROCLINK™ 800 Configuration Software (see
Specification Sheet 4:RL800).
Termination Board - The standard termination board
provides terminations for the pressure sensor input,
the solenoid, the LOI communications port, the RSnd
485 or RS-232 communications port, an optional 2
nd
pressure sensor, an optional 2 solenoid, and
incoming power.
The Local Operator Interface (LOI) port provides a
direct, local link between the LineGuard unit and a
personal computer (PC). A PC connected to the LOI
port running ROCLINK 800 software can configure
the functionality of the LineGuard unit, monitor its
operation and download logs. In addition, a host
computer can remotely configure the LineGuard unit
and download logs through the host communications
port.
Diagnostics - Five diagnostic analog input
monitoring logical voltage, battery voltage, charge in
voltage, system milliamps and board temperature.
Pressure Transducer - The LineGuard 2300 uses
proven transducer technology to sense pipeline
pressure and provide extremely accurate, stable and
repeatable readings. As standard, a 1-5 VDC output
transducer is used, but a 4-20 mA output external
transducer may be used with an easy software
change.
Solenoid – A low wattage solenoid rated at 150 PSI
is used to pilot external controls in order to close the
valve.
The LineGuard 2300 base consists of an integral
manifold that holds both the pressure transducer and
solenoid, as well as provides process and pilot
pressure connections.
Valve Automation
Issued 8/24/10
Revision 0
Housing - The weather-proof, CSA Type 4
enclosure protects the electronics from physical
damage and harsh environments. The enclosure
has a Class I Div. 2 (hazardous area) rating when
properly installed with cable/conduit seals.
The enclosure has four 7/8-inch holes and one 1inch NPT conduit hub for field wiring,
communications or solar panel access.
Mounting - The LineGuard 2300 assembly has
provisions that allow the LineGuard to be mounted
locally on the actuator or remotely on a pipe stand.
Open I/O Points - The terminal board provides
terminations for optional I/O points. The open I/O
points are: one software selectable Analog
Input/Discrete Input point (additional analog sensor
or limit switch), one Discrete Output point, two
software selectable Pulse Inputs/ Discrete Inputs
and (limit switches), and five Discrete Output relays.
Liquid Crystal Display (LCD) Touchpad - Using the
door mounted LCD touchpad display, you can view
selected data stored in the LineGuard 2300 unit. The
LCD is typically used to display pressure data, time
and date, real-time parameters and user-specified
parameters. The touch screen provides a multi-line
graphic display scrolling through the configured list of
items, when activated by the user. The touchpad can
also be security enabled to allow up to sixteen users
read-only, read-write or no access to the user lists
and standard features
Surge Protection – The 24 VDC and solar powered
LineGuard 2300 comes equipped, as standard, with
20 kA surge protection for the incoming power,
pressure transducer, and communication signal.
Specification Sheet
VA001-066-43
Options
Power Options – The LineGuard 2300 has four
power options available: 24 VDC, solar powered,
115 VAC or 230 VAC. All options come standard
with a 12 VDC battery back-up capable of 25 days
autonomy if all incoming power is lost.
Pressure Transducer Option – To handle a varying
array of pipeline pressure conditions, the LineGuard
2300 has transducers with varying pressure ranges.
Ranges available include 0-2000 PSIG, 0-100 PSIG,
0-500 PSIG, 0-1000 PSIG, 0-3000 PSIG, 0-5000
PSIG all with ± 0.25% accuracy. A 0-2000 PSIG
transducer with ± 0.10% accuracy is available. If
desired, an external transducer may be used.
Solenoid Options – Standard offering for the
LineGuard 2300 is one solenoid for valve closure in
the event of a Major alarm. If desired, a second reopening solenoid can be utilized. Additionally, an
external solenoid may be used.
Communication Options – The LineGuard 2300
comes with built in RS-485 and RS-232
communication. Due to the type of surge device
required for the specific communication option, the
customer should specify their preference for
communication connection to the LineGuard 2300.
Mounting Hardware and Solar Panel Options Mounting hardware can be supplied to mount the
LineGuard 2300 on the actuator or remotely away
from the actuator. Depending on geographic location,
20 or 40 watt modules are available. Hardware for
mounting the solar modules is available as well.
Valve Automation
Issued 8/24/10
Revision 0
Specification Sheet
VA001-066-43
ROCLink 800 Software
LineGuard 2300 Base Unit
Valve Automation
Issued 8/24/10
Revision 0
LineGuard 2300 I/O Module
Specification Sheet
Issued 8/24/10
Revision 0
VA001-066-43
1. Local operator interface port (RS-232)
communicates to a laptop or similar PC device
for local configuration and data retrieval.
2. CPU module contains the main processing unit,
memory, operational firmware, RS-232 port,
RS-485 port, and RTD input.
3. 6 point I/O modules for analog input, discrete
output, discrete input and/or pulse input. 24 VDC loop
power is provided.
4. 6 point discrete output relay module capable of
switching 1 amp at 30 VDC.
6. Covered wiring tray neatly routes field wiring to and
from modules.
7. Battery compartment uses lithium battery to
backup RAM in the CPU.
8. Input power range for the LineGuard 2300 and I/O
is 9 to 30 VDC.
9. Display port connects a graphic display unit to the
LineGuard 2300. Supports ROC and Modbus
slave protocols.
5. Open I/O slot for installation of additional I/O
module.
The base unit provides the backplane, module slots, ports, and electrical
interconnections for the LineGuard 2300.
Valve Automation
Specification Sheet
Issued 8/24/10
Revision 0
VA001-066-43
Main Specifications
PROCESSOR INFORMATION
32 bit, running at 3.68 MHz.
Program Memory: 2 MB Flash EPROM
(programmable) for firmware and configuration
Data Memory: 2 MB SRAM.
Boot Flash: 8 KB for system initialization and
diagnostics.
TIME FUNCTIONS
Clock: Real Time. Year/Month/Day and
Hour/Minute/ Second. Backed up by battery.
DIAGNOSTICS
Five diagnostic analog input monitoring logical
voltage, battery voltage, charge in voltage, system
milliamps and board temperature.
COMMUNICATIONS
Local Operator Interface: EIA-232 (RS-232C)
format. Software configurable with baud rates from
300 to 115.2 Kbps and uses a DB9 connection.
EIA-485 (RS-485): Software configurable with baud
rates from 300 to 115.2 Kbps with standard
differential data transmission over distances of up to
1220 meter (4000 feet).
EIA-232 (RS-232): Software configurable with baud
rates from 300 to 115.2 Kbps. Uses point-to-point
asynchronous serial communications and used to
provide the physical interface for connecting serial
devices.
Protocols: Fisher ROC or Modbus ASCII and RTU
slave or host protocols.
POWER
Internal Battery: Lead-acid. Rechargeable.
Nominal 12 V DC, 55 Amp-hour. Battery life with no
charging input and no communications: 25 days.
External Power Charging Input:
24 VDC. 12 VDC solar powered. 115 or 230 VAC.
WEIGHT
LineGuard 2300, (no mounting hardware):
43.1 kg. (95 lbs.)
Valve Automation
SOLAR PANEL (OPTIONAL)
20 Watt Output: 12 Volts nominal. Max. current =
1.19 amps.
40 Watt Output: 12 Volts nominal. Max. current =
2.38 amps.
RTD INPUT
Quantity/Type: Single input for a 3- or 4-wire RTD
element with an alpha equal to 0.00385.
Terminals: SRC (single source current positive
input), + (+ RTD), - (-RTD), GND (negative ground
return reference.
Sensing Range: -40 to 240°C (-40 to 464°F)
(default).
Filter: Band-pass hardware filter.
Resolution: 16 bits.
Sample Period: 1 sec minimum.
ENVIRONMENTAL
Operating Temperature: -40 to 75°C (-40 to
167°F).
LCD Display: -20 to 75°C (-4 to 167°F).
Storage Temperature: -50 to 85°C (-58 to 185°F).
Operating Humidity: 5 to 95%, non-condensing.
ENCLOSURE: Construction/Rating 14-Ga welded
steel enclosure and door with SS hinges and locking
butterfly latches. ANSI-61 gray powder coated finish
inside and out. CSA Type 4 rating (NEMA 4
equivalent). Includes four 7/8-inch holes and one 1”
NPT conduit hub for field wiring. External ground lug
provided.
DIMENSIONS
Enclosure: 508 mm H by 406 mm W by 254 mm D
(20 in. H by 16 in. W by 10 in. D).
Pipestand Mounting: Mounts on an NPS 2-inch
pipe with U-bolt mounting kit (optional).
Specification Sheet
Issued 8/24/10
Revision 0
VA001-066-43
Main Specifications (Continued)
APPROVALS
Applicable requirements:
CAN/CSA-C22.2 No. 0-M91
st
CSA C22.2 No. 94.1-07, 1 Ed.
st
CSA C22.2 No. 94.2-07, 1 Ed.
CSA C22.2 No. 142-M1987
CSA C22.2 No. 213-M1987
ANSI/UL 50, 12 Ed.
st
ANSI/UL 50E, 1 Ed.
th
ANSI/UL 508, 17 Ed.
ANSI/ISA-12.12.01-2007
Certified by CSA. Marked
Product Markings for Hazardous Locations (North
America):
Class I, Division 2, Groups C & D T4. Type 4
enclosure.
PRESSURE TRANSDUCER SPECIFICATIONS
STATIC PRESSURE INPUT
Range:
0 - 2000 PSIG default, 0-100 PSIG, 0-500 PSIG, 01000 PSIG, 0-3000 PSIG, 0-5000 PSIG.
Consult factory for special ranges and materials
ACCURACY
<±0.25% BFSL (includes non-linearity, hysteresis,
and non-repeatability).
<±0.10% BFSL 0-2000 PSIG transducer available.
STABILITY
±0.25% FS, typ. (1 year).
PROCESS CONNECTION
½-14 NPTF (integral manifold)
CONSTRUCTION
Body construction - 304 S.S.; Wetted material –
316L
ENVIRONMENTAL AND OTHER SPECS
Meets specifications described in the Main
Specifications table.
SOLENOID VALVE
Normally Closed, 12 VDC, 150 psig MOP
½-14 NPT Electrical Connection
Power consumption 1.4 W
Ambient temp range -40 to 75°C (-40 to 167°F).
LineGuard and ROCLINK are marks of one of the Emerson Process Management companies. The Emerson logo is a trademark and service mark of Emerson
Electric Co. All other marks are the property of their respective owners.
The contents of this publication are presented for informational purposes only. While every effort has been made to ensure informational accuracy, they are not to be
construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. Bettis reserves the right
to modify or improve the designs or specifications of such products at any time without notice.
Emerson Process Management
Valve Automation
2500 Park Avenue West
Mansfield, Ohio, USA 44906
Tel: 419-529-4311
Valve Automation