LC-300 Manual
I NSTR
RUCTIION
MANUA
A
AL
Ve
ersion 1.06
TMS,
T
Inc.
6040
6
N Cuttter Circle, S
Suite 302
Portland, Oregon 9 7217
Phone: 503-285-8
8947
Fax: 503-285-1 379
net
www.levelcom.n
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Copyrright © 2013 Technica
al Marine Se
ervice, Inc. LC-300 v1
1.06
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Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
LevelCom 300 Specifications
Power
Supply Gas
Temperature
Humidity
Linearity
Hysteresis
Enclosure
Alarm Setpoints
Control Setpoints
Security
Options
120VAC / 2.0A / 60Hz
Compressed nitrogen (N2). Consumption varies based on configuration of the
LevelCom 300, depth of water and integrity of the well bubbler tube system.
Operating range: -30F to +140F
5 - 95% RH non-condensing
Less than or equal to +/- 0.5%
Less than .25% FSO
NEMA 4X non-metallic
Four (4) programmable setpoints
(Relay option required for remote alarm activation)
Four (4) programmable setpoints
(Control 1 & 2 On/Off) (Relay option required)
User defined 1 - 9 character password
Alarm/control relays: 2 - SPDT “Form C” relays (contacts rated 5A - “Pilot Duty”)
Communications: RS232 / RS422 / RS485 Modbus RTU
Analog output: 4 - 20mA
Level Sensing Range (H2O)
0 – 2000 ft.
Accuracy (Full Scale)
+/-0.5% FS
Resolution (Full Scale)
8.7” (221mm)
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Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
Table of Contents
LEVELCOM 300 SPECIFICATIONS ...................................................................................... 3 GENERAL INFORMATION .................................................................................................... 7 FEATURES AND DEFINITIONS............................................................................................. 9 DISPLAY FUNCTIONS ......................................................................................................... 12 DISPLAY MESSAGES ............................................................................................................. 12 INSTALLATION .................................................................................................................... 14 ELECTRICAL CONNECTIONS - GENERAL .................................................................................. 16 ELECTRICAL CONNECTIONS - 115VAC ................................................................................... 16 ELECTRICAL CONNECTIONS - ANALOG .................................................................................... 16 ELECTRICAL CONNECTIONS - RELAY OUTPUT ......................................................................... 17 ELECTRICAL CONNECTIONS - RS-422 SERIAL COMMUNICATIONS ............................................. 18 PNEUMATIC CONNECTIONS AND MANIFOLD FUNCTIONS ........................................................... 19 BASIC PROGRAMMING ...................................................................................................... 20 ENTERING THE PROGRAM MODE ............................................................................................. 22 ERASE ALL MEMORY RESET FACTORY DEFAULTS ................................................................... 22 SENSOR RANGE ................................................................................................................... 23 DISPLAY SETUP .................................................................................................................... 23 TIMING ................................................................................................................................. 24 SPECIFIC GRAVITY ................................................................................................................ 26 ADVANCED PROGRAMMING ............................................................................................. 27 ENTERING THE PROGRAM MODE ............................................................................................ 27 ENTERING THE PROGRAM MODE WITH A HOT MENU ESTABLISHED ............................................ 27 PASSWORD .......................................................................................................................... 28 HOT MENU ........................................................................................................................... 28 MODBUS COMMUNICATION .................................................................................................... 29 OUTPUTS ............................................................................................................................. 30 RELAY OUTPUTS .................................................................................................................. 31 ALARM RELAY CONFIGURATION ............................................................................................. 31 CONTROL RELAY CONFIGURATION ......................................................................................... 32 ANALOG OUTPUT .................................................................................................................. 34 CONFIGURE AS A GAUGE OUTPUT .......................................................................................... 35 CONFIGURE AS A CONTROL OUTPUT ...................................................................................... 35 MANUAL ANALOG OUTPUT ..................................................................................................... 37 CALIBRATION...................................................................................................................... 39 ANALOG OUTPUT CALIBRATION .............................................................................................. 39 TROUBLESHOOTING .......................................................................................................... 41 INSTRUMENT DISPLAYS EEPROM FAILURE .......................................................................... 41 Page 4
Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
INSTRUMENT DISPLAYS LOW N2............................................................................................ 42 THE CALIBRATE MENU ....................................................................................................... 42 MODBUS TROUBLESHOOTING ................................................................................................ 45 APPENDIX A SERIAL NETWORK WIRING DIAGRAMS .................................................... 46 APPENDIX B MODBUS REGISTER MAP ........................................................................... 46 NOTES: ................................................................................................................................ 48 APPENDIX C ........................................................................................................................ 51 WIRING DIAGRAM ............................................................................................................... 51 CONFIGURATION INTERFACE MAP .................................................................................. 52 Page 5
Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
Table of Figures
Figure 1 Levelcom 300 Display ............................................................................................ 12 Figure 2 Levelcom 300 General Layout ............................................................................... 14 Figure 3 Main Controller Board with Options ........................................................................ 15 Figure 4 Main Terminal Block Label ..................................................................................... 16 Figure 5 Analog Output Power Jumpers .............................................................................. 17 Figure 6 Pneumatic Connections ......................................................................................... 19 Figure 7 Typical Well Installation .......................................................................................... 20 Figure 8 Well installation with Well Head Differential Pressure ............................................ 20 Figure 9 Buttons ................................................................................................................... 21 Figure 10 Input board with Analog Output Installed.............................................................. 39 Figure 11 Two-Wire RS-485 configuration (Multiple Drops) ................................................. 46 Figure 12 Four-Wire RS-485 configuration (Single Drop) ..................................................... 46 Figure 13 Four-Wire RS-485 configuration (Multiple Drops) ................................................ 46 Figure 14 Wiring Diagram .................................................................................................... 51 Page 6
Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
General Information
Bubblers are one of the oldest remote level sensing systems, and are ideal for sensing water
level in wells. They operate by measuring the air pressure required to blow bubbles from a
tube that opens near the bottom of the well. This pressure reading is converted to liquid
depth if the specific gravity of the measured fluid is known. This ability, to measure the fluid
depth remotely is one of the most important characteristics of bubblers. No sensitive
electronics or machinery are mounted in the well, only a piece of tubing that is compatible
with the well environment.
The LevelCom 300 Well Level Indicator answers problems long associated with submersible
sensors for well level sensing. First, the calibration of the sensor can be verified because the
sensor is not at the bottom of the well, the sensor is connected to the bottom of the well by a
gas filled bubbler tube. Secondly, the instrument uses the same sensor to measure wellhead
pressure. This removes the errors resulting from using a separate sensor for this
measurement. Finally the LevelCom 300 can detect faults with the bubbler tube system,
such as leaks and plugs. The instrument can be interfaced to data telemetry systems
allowing remote read out of well level.
For operation, the LevelCom 300 simply requires electrical power, a source of clean, highpressure air or nitrogen and connection to a sense tube in the well.
The LevelCom 300 measures the static head pressure at the end of the sense line. Using
the programmed value for the liquid specific gravity this pressure reading is converted to a
depth reading. This raw depth reading is then converted for display in engineering units of
measure, which include both English units, inches, and feet, and metric units, meters.
The LevelCom 300 uses computer controlled solenoid valves, admitting pulses of gas to the
system only as needed to balance against the liquid level. The unit is designed for minimal
gas consumption.
When power is applied, the LevelCom 300 performs a diagnostic check of system
operations. To ensure accuracy the instrument performs a “hardware zero” by sampling
the atmospheric air pressure external to the instrument. In normal operation the LevelCom
300 automatically performs the hardware zero with each new sample operation.
Each LevelCom 300 is field programmed with the parameters and feature selections
associated with the well to be monitored. These include:
Depth in English or metric units
Timing of sample cycles
Manual input of specific gravity
Four alarm setpoints with hysteresis
Analog and/or digital outputs
A user defined password
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Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
A Hot Menu to access certain user-selectable features without a password
The LevelCom 300 is self-diagnostic and is programmed to detect hardware errors, sense
and supply line problems including leaks, plugged lines and low supply gas pressures. If an
abnormal condition is detected, the LevelCom 300 will display the appropriate error message
on the digital display to alert the operator.
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Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
Features and Definitions
The following are definitions and explanations of LevelCom 300 features and the terminology
pertaining to this manual and the LevelCom 300 program.
Alarm / Control Setpoint: A user defined reference point that establishes the point at which
a particular alarm or control function will activate.
Bubbler: Refers to the sensing tube installed in the well. The Bubbler to Bottom parameter
is the distance between the lower end of the sense tube and the bottom of the well.
Buttons: The LevelCom 300 has a set of buttons built into the faceplate. These are used to
enter the configuration information into the device, and to locally acknowledge alarm
conditions.
Calibrate: The LevelCom 300 is shipped fully calibrated and while in operation automatically
performs a periodic “Hardware Zero”. Should the unit require field calibration please
reference the calibration procedure beginning on page 39.
Communication: The LevelCom 300 can be purchased with an optional communication
interface that allows the instrument to be networked to a central control or data acquisition
computer. The interface is RS-422/RS-485 using standard Modbus RTU Protocol.
Initialization Purge: A Purge is the act of clears the sense tube of liquid by the application
of compressed gas. The LevelCom 300 has an initialization purge function that can be used
to bring the instrument into normal operation quickly without using an excess amount of gas.
This function is only intended for use bringing the instrument into operation when the sense
line must be cleared of water.
Configuration: The LevelCom 300 program allows users to configure the unit to a wide
variety of situations. The unit is shipped with a default configuration and the user adjusts the
parameters to match his own requirements thereby establishing the instrument configuration.
Demand: The user may configure the LevelCom 300 to perform sample functions on
demand in lieu of automatic timed cycles. This feature is normally used in areas where the
quantity of supply gas is limited or in applications not requiring constant monitoring.
Hot Menu: The hot menu is for use when the configuration will be password protected. It is
a configurable menu that allows certain parameters, for example, Sample Timing, to be
available to operators who don’t have the password. This allows operators to change these
parameters as needed while protecting the rest of the configuration from tampering.
Hysteresis: A user-defined measurement between an Alarm Setpoint and the point the
alarm condition will automatically clear.
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Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
LEAK: LEAK is displayed if the LevelCom 300 has detected a leak in the main sense line. It
is important to note that the LevelCom 300 will not detect a severe leak, or an open sense
line. In this event the LevelCom 300 will sense atmospheric pressure, assume the well is
empty and display the less than (down arrow symbol) indicating the level in the well is below
the end of the sense line.
Lights: Refers to the LevelCom 300 front panel status and fault LED indicators.
Local: The optional alarm relays can be configured for Local Acknowledge. In this case if
the relays are configured as alarm outputs the alarm output will clear when the ACK button is
pressed. Otherwise the relay will clear only when the alarm condition clears.
Manual Update: In normal operation the instrument runs a sample operation at a predetermined rate. It is possible to manually trigger a sample operation at any time, and this is
called a manual update.
Menu: The LevelCom 300 configuration is organized as a series of menus. These menus
are organized to simplify the configuration process by grouping related parameters together.
The buttons on the instrument front panel are used to navigate through the menus.
MENU: MENU is the front panel key used to enter the LevelCom 300 configuration menus.
The MENU key is also used to make selections and activate or deactivate functions in the
program.
Parameter: A parameter is a number used by the LevelCom 300 to calculate a display value
or to trigger an alarm. Parameters are set by the user to define the configuration of the
LevelCom 300. Specific Gravity is a parameter.
Password: The LevelCom 300 can be configured for password protection of the user’s
configuration. The password characters are the letters A-Z. As few as 1, and as many as 9
characters can be used in the password. The LevelCom 300 is capable of being
programmed with a Hot Menu, which allows easy access to frequently used functions and
parameters. The Hot Menu is not password protected.
Programming: Programming refers to the setup and entry of the user configuration into the
LevelCom 300.
Relays: The LevelCom 300 is available with 2 optional “Form C” relays. These relays can
be used for alarm or control purposes.
Sample Operation: When the instrument goes through the process of applying a controlled
charge of nitrogen into the sense line this operation is referred to as a sample operation.
Sense Line: The sense line is the bubbler tube mounted inside the well and connected to
the LevelCom 300.
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Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
Specific gravity: Specific gravity is the ratio of the density of a substance to the density of
fresh water, with water having the specific gravity of 1.000. It is a user-defined parameter in
the Levelcom 300 program. This parameter is used to convert the static pressure reading
from the sense line into a depth reading.
SURE?: “SURE?” appears when the user has entered a section of the program that will
erase or overwrite the configuration. The LevelCom 300 queries the user to allow time for
the user to consider if he is certain of his actions. If “SURE?” appears on the display at any
point in programming and you do not know why Don’t press ENTER!
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Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
Display Functions
The LevelCom 300 displays depth on a 6-digit
display on the top of the display unit. There are
also individual lights to indicate alarm and fault
conditions.
Numeric: The numeric display indicates depth
in the units of measure selected. Programming
information and error messages are also
indicated on the digital display.
SYSTEM OK
BUBBLER TUBE
LEAK
Display Messages
The LevelCom 300 is designed to detect certain
system problems and render messages on the
display. Following is a list of messages, which
could be displayed by the LevelCom 300. If an
error message occurs refer to the troubleshooting guide.
BUBBLER TUBE
PLUGGED
READING VALID
SUPPLY GAS
LOW
LEAK: The LevelCom 300 has determined the
LC-300
sense line is leaking. It must be noted the
LevelCom 300 will not detect a major,
catastrophic failure of the sense line. In this
Figure 1 Levelcom 300 Display
event the LevelCom 300 will sense the ambient
atmospheric pressure, assume the well is empty
and display the down arrow symbol indicating the level in the well is below the end of the
sense line.
LOW N2: Indicates the LevelCom 300 has detected insufficient supply gas pressure.
Confirm the gas source is operating at the proper pressure and is available to the instrument
(refer to the table on page on page 3). Check gas supply fittings for tightness.
SENSE LINE PLUGGED: Indicates the LevelCom 300 is measuring an abnormally high
pressure on the sense line. The LevelCom 300 will activate the Sense Line Plugged alarm
indicator lamp and shift to standby mode awaiting correction of the problem.
SURE?: “SURE?” appears when the user has entered a section of the program that will
erase or overwrite the configuration. The LevelCom 300 queries the user to allow time for
the user to consider if he is certain of his actions. If “SURE?” appears on the display at any
point in programming and you do not know why - Don’t press ENTER!
Up Arrow or Down Arrow: To indicate an out of range reading the digital display will show
flashing arrow symbols in the left most character of the digital display. When the liquid level
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Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
falls below the end of the sense line the instrument will display the Bubbler to Bottom value
with a flashing down arrow to indicate that the fluid level can no longer be measured. If the
fluid level rises above the Maximum Depth level the left most character will have a flashing
up arrow to indicate that the fluid level is over the top of the well.
Lights: On the instrument front panel there are individual LED lights to indicate alarm and
fault conditions.
The System OK light is normally lit to indicate that the instrument is operating correctly.
When fault conditions are detected, the System OK light goes out and the corresponding
fault indicator is lit. There are 3 fault indicators including Bubbler Tube Plugged, Bubbler
Tube Leak, and Supply Gas Low.
In addition to these indicators there is the Reading Valid light. This light is used to indicate
when the display reading has been updated after a manual or automatic sample operation.
When the sample operation begins the Reading Valid light goes out, and when the new
reading is obtained, the Reading Valid light is lit.
Buttons: The front panel buttons are used in normal operation to view the display units, to
locally acknowledge alarms, and to manually trigger a new reading.
To view the present display units, press the ENTER button. While the button is pressed the
current display units will be shown in text on the digital display, FEET for instance.
To acknowledge alarm and fault conditions, press the ACK button. If the optional relay
interface is installed, and a relay is configured as a local alarm relay, the ACK button is used
to acknowledge the alarm condition and clear the relay.
The instrument is configured to sample the sense line regularly. To conserve nitrogen gas it
might be desired to have the instrument sample infrequently. You can trigger a Manual
Update any time by pressing the UP button while the instrument is in normal operation. The
Reading Valid light will go out, and when the sample operation is complete this light will once
again go on, signaling the completion of the new sample operation. Then the instrument will
display the new reading.
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Installation
LC100-C2
RELAY
No.2
L1
L2
GND
R1 NC
R1 COM
R2 NO
R2 NC
R2 COM
R2 NO
WHITE
DUMP BLOCK INPUT L2 L1
CB - 1
SENSE LINE
DIFF
DIFFERENTIAL
MAIN
DUMP
DIFF
BLOCKING
MAIN
INPUT
DUMP BLOCK INPUT L2 L1
RELAY
No.1
SOLID STATE
RELAY BOARD
115 VAC
RELAY 1
RELAY 2
SUPPLY CABLE MINIMUM 14 AWG
MINIMUM TEMPERATURE RATING 75° C
Figure 2 Levelcom 300 General Layout
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Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
LC100-A2
RX
RXTX-
RN1
FUSE 5X20
CN4
CN6
TX+
GND
CN5
OFFSET
GAIN-1
COM
MODULE
ANALOG OUTPUT
GAIN-2
CN2
ZERO
RX+
LC100-AO-1
TX
ON / OFF
SWITCH
AC_POWER
SPAN
C1
AOUT
ANALOG
OUTPUT
AIN
+5V REG
RELAY
No.1
LED1
NC COM NO
+24V UNR
NC COM NO
RELAY
No.2
LED2
ISOLATE
POWER
JUMPERS
POWER
CONNECTOR
ANALOG
INPUT
RELAYS 1 $ 2
Figure 3 Main Controller Board with Options
The LevelCom 300 has been designed to be mechanically rugged and well protected against
the environment. For operation, the LevelCom 300 simply requires electrical power,
connection to a source of high pressure gas, and connection to a bubbler tube in the tank or
well.
Mounting and wiring must be in accordance with the National Electrical Code.
Figure 2 shows a general view of the inside of the enclosure. On the right side of the box
are two latches that hold the lid closed. All pneumatic and electrical connections are made
on the bottom of the box so there must be adequate access for the required tubing and
conduit. Make sure there is room for the lid latches to open, and room for the lid to swing
open for access to the internals of the box.
The display is mounted on a swing plate that hinges to the left. To access the inside of the
box for wiring remove the two hold down screws on the right side of the swing plate. These
screws are captive in the swing plate so that they will not be lost. Close the swing plate and
re-tighten the screws to secure it after all wiring connections have been made and all wires
have been secured.
For access to electrical connections, the LevelCom 300 is designed with two 0.875” holes on
the bottom of the case intended for ½” electrical conduit. Use listed 4X conduit fittings
suitable .for applications on Class 1 or Class 2 wiring
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Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
115 VAC
RELAY 1
R2 NO
R2 COM
R2 NC
R1 NO
R1 COM
R1 NC
GND
L2
L1
Figure 2 is a general drawing of the inside of
the Levelcom 300. Depending upon options
ordered there are three possible locations for
electrical connections. 120 Volt AC power
wiring should be separated from any signal or
low-voltage control wiring.
CB - 1
Electrical Connections - General
RELAY 2
SUPPLY CABLE MINIMUM 14 AWG
MINIMUM TEMPERATURE RATING 75° C
Figure 4 Main Terminal Block Label
Figure 3 shows the Main Controller Board.
The options and the connectors are identified.
Electrical Connections - 115VAC
115 VAC connections are made to the main terminal block mounted to the backplane labeled
AC POWER. Note the label on the backplane below the terminal block which identifies the
terminals (igure 4). Note the use of the international symbol for the protective earth terminal.
Use a minimum of 14 AWG wire for the power connections. This wire must have insulation
temperature rating of at least 75 C.
Use the wire tie downs to band all input and output wires down. There are tie down points
provided to keep the high voltage wires separated from the low voltage wires. Wiring codes
require a minimum of 6 inches of slack in the field wires where they enter the box. Tie the
wires down near their ends after they have been inserted into the terminals.
An external circuit breaker must be provided in the power circuit. This should be near the
LevelCom 300 installation and within easy reach of the operator. If a group of LevelCom
300s are mounted together one breaker can be used for the whole group. This breaker must
be clearly marked as the main power disconnect for the LevelCom 300s.
Note: the GND connection is a protective earth connection. This terminal must be made up
to a proper protective earth conductor for the system.
There is a circuit breaker next to the terminal block, this is the main power switch for the
enclosure. There is a power switch located on the main controller circuit board next to the
120 VAC connector. Power ON is the right position. This switch is normally in the ON
position and is not used to control the power to the device. It is important to use the main
circuit breaker to interrupt power for servicing the unit so that none of the internal wiring is
energized.
Electrical Connections - Analog
Analog Output - The optional Analog Output is a 4-20 mA current type. The output may be
powered by the Levelcom 300, or isolated and powered from an external source, by
positioning three circuit board jumpers. External supply voltage may be up to 48 VDC.
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Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
The jumpers are located on the Analog
Input Circuit Board, the larger board
mounted to the main controller board. In the
bottom right corner of the board are three
small plastic jumpers that have been
pushed onto circuit board pins, note the
labels [ISOLATE] and [POWER] printed
adjacent to the jumpers (Figure 5). Move
the jumpers as required. NOTE: Failure to
properly position the jumpers may cause
damage to the circuit board.
Figure 5 Analog Output Power Jumpers
The Analog Output connector is located at the left edge of the main circuit board adjacent to
the Analog Input connector (Figure 3). The connector is a plug and socket. Pull the plug out
of the socket for ease in making up the connections. Be sure to observe polarity markings.
Electrical Connections - Relay Output
Since the Relay Output is an option, this connector may not have been installed in your
LevelCom 300.
Refer to Figure 2 for the following. There are terminals on the main terminal block for the
relay output. The relay output provides two form C contacts so there are three terminals for
each relay. The terminals are identified on the label below the terminal block.
Note: When used with 115VAC circuits, those circuits must be powered by an Overvoltage
Category II Power source.
Note: The contact arrangements are labeled with the relays de-energized. Be aware that
when relays are used for alarm functions, or for system failure alarms the relays are normally
energized, and de-energize to signal an alarm or fault condition. This means a NC contact is
open in normal operation, and a NO contact is closed in normal operation.
NC = Normally Closed
COM = Common
NO = Normally Open
The Relay Outputs are rated for 5A non-inductive, 120 VAC or 30 VDC, or 125 VA for pilot
duty. These contacts should not be used to switch large inductive loads. In cases where
higher loads need to be switched, an external contactor rated for the higher current must be
used. After wiring is complete secure the conductors to the wire tie down points provided on
the backplane.
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Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
Electrical Connections - RS-422 Serial Communications
Since the Serial Communication Interface is an option, this five-point connector may not have
been installed in your LevelCom 300. If this option has been selected, the connector can be
found toward the upper side of the main controller board on the Communications Module
next to the large power transformer. The connector is actually a plug and socket. Note the
printing on the circuit board next to the socket which reads RX- RX+ TX- TX+ GND.
The terminals are described below:
RX-
Receive Data (-polarity), Connect to Computer [TX-] Transmit Data (-polarity)
RX+
Receive Data, (+ polarity) Connect to Computer [TX+] Transmit Data, (+ polarity)
TX-
Transmit Data, (- polarity) Connect to Computer [RX-] Receive Data, (- polarity)
TX+
Transmit Data, (+ polarity) Connect to Computer [RX+] Receive Data, (+ polarity)
GND
Common Connect to Computer Common
Twisting the wires together is also recommended; a twisted pair is less likely to pick up or
radiate interference.
The Serial Communication Interface uses the Modbus RTU protocol to allow the LevelCom
300 to communicate with a SCADA system, remote computer or other intelligent devices.
The well level (in 0.1-inch increments) is readable. A “System Fail” alarm is also transmitted.
The transmission system used is RS-422/485, which helps to minimize interference, and
allows cable runs of up to 4000 feet. The baud rate and Parity are configurable.
For information on connections at the computer’s serial port, refer to the manual
supplied with the computer.
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Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
Pneumatic Connections and Manifold Functions
Pneumatic connections are made at the
bottom of the LevelCom 300 manifold.
Figure 6 shows the pneumatic manifold and
the external connections. The instrument is
supplied with fittings installed as required by
the options ordered. If it is necessary to
install a fitting, thread lubricant should be
used sparingly, with great care taken to keep
excess from entering the manifold. Do not
use PTFE tape on any pneumatic
connections to the LevelCom 300. Fittings
should be made up only as tight as
necessary to be leak-free. The manifold is
aluminum, and can be distorted by using
excessive installation force. The pneumatic
connection ports are discussed below.
MAIN
DIFF
MAIN
DIFF
BLOCK
INPUT
DUMP
Figure 6 Pneumatic Connections
The output connections are for ¼ inch stainless steel compression fittings.
The recommended regulator for LevelCom 300 installations is Harris Regulator, Product #
3200300, Model #8700-1500-580. This is a special non-vented regulator.
The gas input connection to the LevelCom 300 is a Parker # 4-4 FTX-SS MALE 37 degree
high pressure flare fitting. A high pressure hose will be needed, one end will need to connect
to this fitting and the other to the regulator. Normally the regulator would be fitted with a
similar high pressure flare fitting.
DUMP is used at regular intervals by the LevelCom 300 to purge its manifold of any water, or
impurities, and to relieve all pressure to the internal sensor for periodic automatic zero
calibration.
DIFF (Differential Pressure) is used to sense the well annulus pressure.
connected to the well head. Tubing is to be made up tight and leak free.
This tubing is
MAIN connects to the sense line in the well. Tubing is to be made up tight and leak free. No
valves are to be installed in the sensing line.
SUPPLY is connected to a source of high-pressure nitrogen gas. The nitrogen pressure
must be regulated to no greater than 1000 PSI. The fitting is a 37 degree flare fitting for
connecting a high pressure hose to the gas regulator.
Wells that are vented to atmosphere only need the bubbler tube installed. Wells that are
pressurized, or that may see some vacuum need the differential pressure connection
installed as well. See Figure 7 and Figure 8 for examples of these different installations.
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Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
LevelCom
300
WATER OUT
BUBBLER
SUPPLY
120 VAC
POWER
SUPPLY
COMPRESSED
NITROGEN
Figure 7 Typical Well Installation
LevelCom
300
WATER OUT
BUBBLER
DIFFERENTIAL
PRESSURE
SUPPLY
120 VAC
POWER
SUPPLY
COMPRESSED
NITROGEN
Figure 8 Well installation with Well Head Differential Pressure
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Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
Basic Pro
ogramming
The LevelC
Com 300 is shipped with a default
configuratio
on loaded into perma
anent memo
ory.
For efficie
ent use of
o the instrument this
configuratio
on must be
e changed to reflect the
well being monitored
d. To place
e a LevelC
Com
300 in serv
vice, only those
t
featu
ures which are
going to be
e used need
d be set up
p.
The minim
mum configuration req
quirements for
accurate operation
o
in
n a fresh water
w
well are
F
Figure 9 Butttons
Depth Unitts, Maximu
um Depth and
a
Bubbler to
Bottom. The
T Specifiic Gravity may
m also ne
eed
to be adjus
sted if the water
w
in the
e well has a high eno
ough dissolvved minera
al content to
o effect
the specific
c gravity.
To avoid confusion and unnec
cessary pro
ogramming
g steps, the LevelCom 300 has been
designed to confine th
he program
m display to only those
e parameterrs which ha
ave been acctivated
and the ins
stalled options. This means
m
that during the
e programm
ming processs you mayy notice
areas in th
he Configuration Flow Chart that are not dissplayed in tthe program
m. For example, if
the optiona
al relay outputs are no
ot installed,, then the L
LevelCom 3
300 will nott display RE
ELAY 1
or RELAY 2. In these instances, the instrum
ment will skkip to the ne
ext program
mming step..
The Config
guration Flo
ow Chart reflects
r
all of the para
ameters an
nd options available w
with the
LevelCom 300. If you
u wish to ac
ccess a parrameter or option, wh
hich is not p
presently avvailable
to you, plea
ase call TM
MS for assis
stance.
A
PR
ROGRAMM
MING
IMPORTANT NOTE ABOUT
The LevelC
Com 300 is
s designed to be “Use
er Friendly””. We enccourage you
u to enter iinto the
program, browse
b
thro
ough the co
onfiguration
n menus an
nd become
e familiar w
with the datta entry
process, th
he program flow and th
he general operation o
of the unit.
e concerne
ed about changing any value s while le
earning. Affter exploriing the
Do not be
LevelCom 300 confiiguration program,
p
all feature selections and parameters you
u have
entered ca
an be easily
y erased and the unit returned
r
to the factory set defaultt settings. T
To reset
the LevelC
Com 300 to the defaultt condition please follo
ow the step
ps found on
n page 22 in
n Erase
All Memory
y/Reset Fac
ctory Defau
ults
Basic Prog
gramming Key Functions,
ayout of the
e buttons.
Figure 9 shows the la
ser to back out of a me
enu item w
without chan
nging setting
gs.
ESCAPE: Allows a us
Page
P
21
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al Marine Se
ervice, Inc. LC-300 v1
1.06
MENU: Places the unit into Program Mode. Also selects / deselects functions.
UP/DOWN: Scroll vertically through the menu. They are also used to adjust parameter
values.
ENTER: Used to enter the next program level, save selections and parameter values.
Entering the program mode
Power up the LevelCom 300.
Press MENU. The unit will display SYSTEM.
configuration program.
You are now in the LevelCom 300
NOTE: If the unit displays ENTER PASSWORD or HOT MENU then the LevelCom 300 has
been previously programmed. Confer with the responsible party prior to proceeding.
If the unit displays HOT MENU please refer to Page 27. If the unit displays ENTER
PASSWORD and the password is not available, please call TMS for assistance.
Erase All Memory Reset Factory Defaults
NOTE: This section describes removing all selections and parameters from memory and
returning the unit to factory defaults. Use this section only if you have previously entered the
program and made selections and adjustments you want to delete.
1. At SYSTEM press UP, the unit will display UTILITIES.
2. Press ENTER. The unit will display NETWORK ADDRESS.
3. Press UP. The unit will display MEMORY.
4. Press ENTER. The unit will display WRITE OVER BACKUP.
5. Press UP. The unit will display ERASE ALL MEMORY.
6. Press ENTER. The unit will display SURE?
7. Press ENTER. The unit will reset and display SYSTEM.
8. At SYSTEM continue with programming or press ESCAPE to return to operation with
factory set defaults.
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Sensor Range
The sensor range is one of the most important parameters to be set up. This parameter is
used to interpret the signals from the sensor and convert them into working pressures. If this
parameter is incorrectly set up the instrument will not read depth correctly, and may not
function at all.
The standard sensor for these instruments is a 1000-PSI sensor. In cases where the water
level is deeper than 2000 feet a 1500-PSI sensor may be installed. Verify the sensor type
before adjusting this parameter. This will normally be set up at the factory and should not
need to be adjusted.
1. At SYSTEM press ENTER. The unit will display DISPLAY SETUP
2. Press Down twice and the unit will display SENSOR RANGE.
3. Press Enter and the instrument will display the current sensor range configured.
4. Press UP/DOWN to scroll to the actual sensor range. The display is in PSI. The default
for this value is 1000.
5. Press ESCAPE and the unit will display SENSOR RANGE.
6. Proceed with the next programming step or press ESCAPE twice to return to normal
operation.
Display Setup
1. At SYSTEM press ENTER. The unit will display DISPLAY SETUP
2. Press ENTER. The unit will display DEPTH UNITS.
3. Press ENTER. The unit will display INCHES*.
4. Press UP/DOWN to scroll to the depth unit of measure you have chosen for use.
5. Press MENU to select the choice. An asterisk (*) will appear to the right of the display
indicating the item has been selected.
6. Press ENTER to save the selection(s). SAVING will appear briefly on the display and the
display will return to DEPTH UNITS indicating the selection has been recorded.
7. Press DOWN. The unit will display WELL SETUP.
8. Press ENTER. The unit will display MAX DEPTH.
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9. Press ENTER. The unit will display the factory default Max Depth, 2000 ft.
10. Press UP/DOWN to scroll to the maximum vertical dimension of the well in the Depth Unit
of measure you chose in step #5 above.
11. Press ENTER to save the new value. The display will return to BUBBLER TO BOTTOM.
12. At BUBBLER TO BOTTOM press ENTER. The unit will display 0.0.
13. Press UP/DOWN to scroll to the bubbler to bottom distance using the Depth Units you
selected in step #5 above.
14. Press ENTER to save. SAVING will appear briefly on the display and the display will shift
to MAX DEPTH.
15. Press ESCAPE. Unit will display DISPLAY SETUP.
16. Proceed with the next programming step or press ESCAPE twice to return to normal
operation.
Timing
The Timing program establishes two parameters. Normal Sample and Low Level Sample
regulate the frequency of level sample operations. The Low level trip point sets the depth
where the instrument switches from the normal sample frequency to the low-level sample
frequency.
The factory default for this setup is a normal sampling frequency of 6 hours, a low level
sampling frequency of 6 hours, and a trip depth of 0. The low level sampling frequency trip is
effectively disabled in this configuration.
It is important to understand what this sample frequency means before setting up the
instrument. Gas charges are periodically applied to the sense line to make sure that all water
is purged out of the line. Between these sample operations the sense line pressure is
monitored and the display updated, so the reading on the display is the current pressure in
the sense line even if that pressure has changed since the last sample operation.
In the Normal Sample time there is an option for sample operations every 5 minutes. This is
used in testing a new installation only, and is far too wasteful of gas for normal operation.
The Normal Sample time should be chosen to reflect the rate that the water level in the well
can change significantly. The nitrogen bottle will last longer if a longer sample time is
selected.
The Low Level Sample rate is available if the operator wants a faster sample rate when the
water level falls below a certain depth. This might be desired because the water level could
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change more rapidly when the water level in the well is low. The Trip Depth is the depth
where the instrument switches from the Normal Sample rate to the Low-Level Sample rate.
It should be noted that a faster sampling rate would not necessarily make the measurements
more accurate. If the water level is dropping, gas will bubble out of the end of the sense tube
because the pressure at the bottom of the tube will be dropping. In this case the instrument
readings will be as accurate as possible and no new gas is needed in the sense line because
it is already completely purged of water. If the water level is rising, however, the water will
back up the sense line, slowly compressing the gas in the line. The instrument will see this
as a slight change in depth but the depth reading will no longer be accurate until enough gas
is supplied to the sense line to purge out the water that has backed up into the line.
If the sense line was perfectly leak free, and the water level was continually dropping, the
instrument would not have to supply any gas to the sense line after the line was completely
purged of water. The instrument periodically applies small charges of gas to the line only to
verify that the line is completely purged. The sample times should be chosen as long as
possible to conserve the nitrogen gas supply.
1. Press MENU. The unit will display SYSTEM.
2. Press ENTER. Unit will display DISPLAY SETUP.
3. Press DOWN. Unit will display TIMING.
4. Press ENTER. Unit will display NORMAL SAMPLE.
5. Press UP/DOWN to scroll to the sample cycle time you have chosen for use.
6. Press MENU to select the choice. An asterisk (*) will appear to the right of the display
indicating the item has been selected.
7. Press ENTER to save the selection. SAVING will appear briefly on the display and the
display will shift to NORNAL SAMPLE.
8. Press DOWN. Unit will display LOW LEVEL SAMPLE.
9. Press ENTER. Unit will display 1 HR.
10. Press UP/DOWN to scroll to the low level sample time you have chosen for use.
11. Press MENU to select the choice. An asterisk (*) will appear to the right of the display
indicating the item has been selected.
12. Press ENTER to save the selection. SAVING will appear briefly on the display and the
display will shift to LOW LEVEL SAMPLE.
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13. Press DOWN. Unit will display TRIP DEPTH.
14. Press ENTER. Unit will display 0.
15. Press UP/DOWN to set the trip depth you need.
16. Press ENTER to save the selection. SAVING will appear briefly on the display and the
display will shift to TRIP DEPTH.
17. Press ESCAPE. Unit will display TIMING.
18. Proceed with the next programming step or press ESCAPE twice to return to normal
operation.
Specific Gravity
1. At TIMING press DOWN. Unit will display SPEC GRAV.
2. Press ENTER. Unit will display 1.000.
3. Press UP/DOWN to scroll to the specific gravity of the liquid stored in the tank.
4. Press ENTER to save the selection. SAVING will appear briefly on the display and the
display will shift to SPEC GRAV.
5. Proceed with the next programming step or press ESCAPE twice to return to normal
operation.
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Advanced Programming
This section addresses the programming of the more advanced features of the LevelCom
300. These features include establishing password protection of the LevelCom 300
configuration, setting up a Hot Menu, and the setup of optional outputs.
This section assumes the LevelCom 300 has been programmed for basic use. If the unit has
not been programmed please refer to page 21, Basic Programming.
Use caution as you move through the program. If you inadvertently access a section of the
program containing data you do not wish to adjust, simply press ESCAPE to back out to the
previous program point. Following the Configuration Flow Chart as you move through the
program will assist you.
Entering the Program Mode
From normal operation press MENU. The unit will display SYSTEM.
NOTE: If the unit displays ENTER PASSWORD or HOT MENU then the LevelCom 300 has
been previously programmed. Confer with the responsible party prior to proceeding. If the
unit displays HOT MENU please refer to the following section. If the unit displays ENTER
PASSWORD and the password is not available please call TMS for assistance.
Entering the Program Mode with a Hot Menu established
The LevelCom 300 program allows the user to establish a Hot Menu, which allows access to
selectable parameters and functions without the need to enter the program. The Hot Menu
feature provides a means to access and adjust commonly used features, e.g., alarm and
relay setpoints, specific gravity, sample timing, etc. without entering into the full program.
Items available for the Hot Menu are indicated on the Configuration Flow Chart. For
instructions on programming a Hot Menu please turn to page 28.
Once programmed, the Hot Menu is instantly accessible from normal operation simply by
pressing the MENU key.
If a Hot Menu is set up, then entering the Program Mode requires some additional steps.
1. From normal operation press MENU. The unit will briefly display HOT MENU and the
display will shift to the first Hot Menu selection.
2. Press the UP key. The unit will display CONFIGURE SYSTEM.
3. Press ENTER. If no password is required, the unit will display SYSTEM. For information
on passwords please see Page 28.
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Password
Access to the LevelCom 300 program can be restricted by the use of a password. As
previously discussed, the LevelCom 300 can be programmed with a user defined Hot Menu
which will provide immediate, non password-protected access to some commonly used
features.
If a password has been set up the LevelCom 300 will display ENTER PASSWORD whenever
an attempt is made to enter into the program mode. Illegal attempts to access the program
do not cause any problem other than frustration for the person attempting entry. Once the
password has been programmed and the program exited, the password must be used. The
password is entered using the same keystrokes as described below in Programming a
Password steps 4 - 8.
Programming a Password
1. Press MENU. The unit will display SYSTEM.
2. Press UP/DOWN to scroll to NEW PASSWORD.
3. Press ENTER. The unit will display a flashing underline as a cursor.
NOTE: The LevelCom 300 password selection consists of the letters A-Z. A password of 1
to 9 characters can be set up.
4. Press UP/DOWN to scroll to the first character.
5. Simultaneously press MENU and the UP key to shift to the next character.
6. Press UP/DOWN to scroll to the second character.
7. Repeat steps five and six until your password is displayed.
8. Press ENTER. SAVING will appear briefly on the display and the display will return to
NEW PASSWORD indicating your password has been saved.
NOTE: This password will be required to enter into the configuration program. TMS
recommends you set up a Hot Menu to access those parameters you would like accessible
but not password protected. If the password is lost please call TMS for assistance.
Hot Menu
The LevelCom 300 is programmed with a Hot Menu feature. This allows the user to set up
certain parameters and functions into a menu that is instantly accessible simply by pressing
the MENU key. This feature is especially helpful if the user has set up password protection.
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Once the Hot Menu has been programmed the LevelCom 300 will display HOT MENU when
the MENU key is pressed. The parameters set up in the Hot Menu are accessible by
scrolling with the UP/DOWN keys.
Hot Menu
1. Enter Program Mode.
2. At SYSTEM press UP/DOWN keys to scroll to HOT MENU.
3. Press ENTER. The unit will display SPEC GRAV.
4. Press the UP/DOWN keys to scroll through the functions and parameters available for the
Hot Menu.
5. Select those functions/parameters you wish displayed in the hot menu by pressing the
MENU key. An asterisk (*) will appear to the right of the display indicating the item has
been selected.
6. After selecting the Hot Menu items press ENTER. SAVING will appear briefly on the
display and the display will return to HOT MENU indicating the selections have been
recorded.
7. Press ESCAPE to return to normal operation.
Modbus Communication
The Levelcom 300 can be equipped with an optional communication interface. This is a
standard RS-422/RS485 type interface. The instrument communicates using the Modbus
protocol using Modbus RTU. The instrument may be wired for either 4 wire RS-422, or 2
wire RS485. The communication baud rate may be configured, and different parity options
set. There are diagnostic functions to help troubleshoot communication problems.
To configure the communication interface follow this procedure.
1. Enter Program Mode.
2. At SYSTEM press UP key to scroll to UTILITIES.
3. Press ENTER. The unit will display COM SETUP.
4. Press ENTER and the instrument will display NETWORK ADDRESS.
5. Press ENTER and the instrument will display the current network address.
6. Use the UP/DOWN keys to scroll to the desired network address.
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7. Press ENTER to save the network address. The unit will display NETWORK ADDRESS.
8. Press the DOWN key and the unit will display BAUD RATE.
9. Press ENTER. The instrument will display 1200.
10. Use the UP/DOWN keys to display the desired baud rate.
11. Press MENU to select the new baud rate.
12. Press enter to save the new baud rate, the unit will display BAUD RATE.
13. Press the DOWN key and the instrument will display PARITY.
14. Press ENTER and the instrument will display N-8-1.
15. Use the UP/DOWN keys to display the desired parity setting.
16. Press MENU to select the new parity setting.
17. Press ENTER to save the new parity setting, the unit will display PARITY.
18. Press ESCAPE to exit the communication setup menu.
Outputs
The LevelCom 300 has a number of output devices available. There are optional relays that
can be configured to function as alarm, or control outputs, an optional 4-20 mA output that
can be used as a gauge, or control output.
The LevelCom 300 automatically detects any installed optional output devices on power up.
The Outputs menu will reflect this. For instance if no relay module is installed in the
LevelCom 300 the Relays menu item will not appear in the Outputs menu. Because of this
the menus on your instrument may not exactly match the menus as shown on the
programming interface map at the end of this manual.
To program alarms the alarm points must first be assigned to output relays. After assigning
alarms to outputs the alarm setpoints and hysteresis values can be set. For instance if you
have assigned High and Low alarms to relays, you will be able to set up the alarm setpoints
for these alarms under the Alarm Setpoints menu. You will not be able to set up a setpoint
for the High High alarm, or the Low Low alarm though. These alarms have not been
assigned to outputs.
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Relay Outputs
The LevelCom 300 has two optional “Form C” relay outputs. These relay outputs allow the
user to configure the LevelCom 300 to activate external operations, such as, alarms, motor
controls, etc. If you have ordered relay outputs then the LevelCom 300 will display RELAY 1
and RELAY 2 under the Outputs section of the program (Please refer to the Configuration
Flow Chart).
The relays can be programmed to be either alarm or control outputs. If relays are configured
as alarm outputs, they will function similarly to the light or horn outputs. The relays differ
from the lights and the horn in that they do not normally respond to the ACK button. They
normally activate when the alarm condition occurs, and clear at the assigned hysteresis level.
Relays cannot be configured to latch. As alarm outputs the relays are intended for
interfacing the LevelCom 300 to existing alarm systems.
It is possible to configure an alarm relay to be locally acknowledged. In this case the relay
will respond to the ACK button. This setup can be used to build a local alarm system for a
group of LevelCom 300s. The relay outputs from each LevelCom 300 can be paralleled to
run an alarm horn. To silence the horn, the ACK button must be pressed on the LevelCom
300, which is generating the alarm.
When a relay is configured as a System Failure relay, it will respond only to failure
conditions, such as Sense Line Plugged, Sense Line Leak, and so on.
Programming Relay Outputs
NOTE: The following procedure applies to both relay outputs. Follow the same procedure
for Relay 2.
Alarm Relay Configuration
Follow these instructions to set up a relay for ALARM or SYS FAIL operation.
1. Enter Program Mode.
2. At SYSTEM press UP/DOWN keys to scroll to OUTPUTS.
3. Press ENTER. The unit will display LIGHTS.
4. Press the DOWN key until unit displays RELAY 1.
5. Press ENTER. The unit will display ALARM.
6. Press UP/DOWN keys to scroll to ALARM, or SYS FAIL.
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7. Press MENU to select the function of the relay. An asterisk (*) will appear to the right of
the display indicating the function has been selected. Also select LOCAL if you choose
to have the relay acknowledgeable from the LevelCom 300 front panel ACK key.
8. Press ENTER. SAVING will appear briefly on the display. If SYS FAIL was selected
press ESCAPE to back out of the menu. If ALARM was selected please continue below.
9. The unit will display HI HI.
10. Press UP/DOWN keys to scroll through the menu selections.
11. Press MENU key to select those alarms you wish activated.
12. Press ENTER. SAVING will appear briefly on the display and the display will shift to
RELAY 1.
Control Relay Configuration
When a relay is set up as a control relay there are two setpoints that must be defined; the on
setpoint and the off setpoint. The relay will be energized when the level reaches the ON
SETPOINT value and the relay will be de-energized when the level reaches the OFF
SETPOINT value. This is simple enough but there are other factors to consider before
setting the relays up.
The control option was designed with the intent of controlling a pump or a valve to maintain
the level of a well. If such control is to be implemented it is important to consider what will
happen in case there is a failure in the system. The LevelCom 300 will de-energize the relay
when any system failure condition is indicated. These include supply air failure, plugged
sense lines, or onboard hardware failures. When any of these conditions occurs, the
LevelCom 300 is no longer able to measure the level in the well and it enters a fault mode
and the relays are de-energized. This way the relays go to the same state they would go to if
the LevelCom 300 lost power.
It is very important to consider what will happen to the controlled pump or valve in this case.
Should the pump run (fail on) or should it shut down (fail off) in this case? If the pump is
filling the tank it should probably shut off to avoid overflowing the tank. However if the pump
is emptying the tank, and the pump can handle continuous operation it might be better for the
pump to fail running, again to avoid overfilling the tank. Since the LevelCom 300 relays have
form C contacts it is possible to handle all possible combinations.
First it is important to identify the required failure action. This will determine whether to use
the normally open contact, or the normally closed contact of the relay. Then the proper
setting of the setpoints will result in the desired action. Remember that the relay ON
SETPOINT controls where the relay coil is energized, the OFF SETPOINT where the relay
coil de-energizes. The function of the required relay contact can make this seem backward.
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In the following a pump or valve will be referred to as Device. The word Deactivated will refer
to the condition where no electric power is flowing to the Device, Activated will refer to the
condition where electric power is flowing to the device.
Case 1:
Device must fail to a Deactivated condition. Device is to be activated at a high liquid level,
Deactivated at a low liquid level.
Wire Device to the normally open contacts of the relay. Set ON SETPOINT to the high level,
OFF SETPOINT to the low level.
Case 2:
Device must fail to an Activated condition. Device is to be activated at a high liquid level,
Deactivated at a low liquid level.
Wire Device to the normally closed contacts of the relay. Set OFF SETPOINT to the high
level, ON SETPOINT to the low level.
Case 3:
Device must fail to a Deactivated condition. Device is to be activated at a low liquid level,
Deactivated at a high liquid level.
Wire Device to the normally open contacts of the relay. Set ON SETPOINT to the low level,
OFF SETPOINT to the high level.
Case 4:
Device must fail to an Activated condition. Device is to be activated at a low liquid level,
Deactivated at a high liquid level.
Wire Device to the normally closed contacts of the relay. Set OFF SETPOINT to the low
level, ON SETPOINT to the high level.
Important Note:
In any of the above cases it is strongly advised that any failure case generate a remote alarm
if the device is operating in an unattended area. The second relay could be configured as a
SYS FAIL relay. Set up this way, the relay will be normally energized, and de-energized in
any system failure case. The output of this relay could be used to operate a warning horn to
alert operators to the failure condition.
1. Enter Program Mode.
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2. At SYSTEM press UP/DOWN keys to scroll to OUTPUTS.
3. Press ENTER. The unit will display LIGHTS.
4. Press the DOWN key until unit displays RELAY 1.
5. Press ENTER. The unit will display ALARM.
6. Press UP/DOWN keys to scroll toto CONTROL.
7. Press MENU to activate the Control option. An asterisk (*) will appear to the right of the
display indicating the function has been selected. Press ENTER.
8. The unit will display “ON SETPOINT”.
9. Press ENTER. The unit will display 0.0.
10. Press UP/DOWN keys to scroll to the ON SETPOINT you have defined on your
worksheet.
11. Press ENTER. SAVING will appear briefly on the display and the display will shift to OFF
SETPOINT.
12. Press ENTER. The unit will display 0.0.
13. Press UP/DOWN keys to scroll to the Off Setpoint you have defined on your worksheet.
14. Press ENTER. SAVING will appear briefly on the display and the display will shift to ON
SETPOINT.
Analog Output
The optional analog output module gives the LevelCom 300 a 4 – 20 mA output capability.
The output can function either as a gauge output to remotely indicate depth, volume, or
weight to a remote meter, or data acquisition system
It is also possible to configure the analog output as a control output. In this case there are 4
adjustable parameters to configure the output value. The Minimum Current is a value
between 4 mA and 20 mA. The maximum current is a value between the minimum current
value and 20 mA. The Minimum Current Setpoint is the depth where the output signal takes
the minimum value. The Maximum Current Setpoint is the depth where the output signal
takes the maximum value. This gives great flexibility in the configuration of the analog
output.
If the Minimum Current Setpoint is below the Maximum Current Setpoint, the current will be
at the Minimum Current value when the level is below the Minimum Current Setpoint. The
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output will vary smoothly from the Minimum Current value to the Maximum current value
when the level is between the setpoints. When the level is above the Maximum Current
Setpoint, the output current will remain at the Maximum Current value.
If the Minimum Current Setpoint is above the Maximum Current Setpoint, the current will be
at the Maximum Current value when the level is below the Maximum Current Setpoint. The
output will vary smoothly from the Maximum Current value to the Minimum current value
when the level is between the setpoints. When the level is above the Minimum Current
Setpoint, the output current will remain at the Minimum Current value.
Configure as a Gauge Output
1. Enter Program Mode.
2. At SYSTEM press UP/DOWN keys to scroll to OUTPUTS.
3. Press ENTER. The unit will display LIGHTS.
4. Press the DOWN key until unit displays ANALOG OUTPUT.
5. Press ENTER. The unit will display GAUGE.
6. Press MENU to select the function of the relay. An asterisk (*) will appear to the right of
the display indicating the function has been selected.
7. Press ENTER. SAVING will appear briefly on the display. The unit will display DEPTH.
8. Press UP/DOWN keys to scroll through the menu selections.
9. Press MENU key to select the gauge output you want.
10. Press ENTER. SAVING will appear briefly on the display and the display will shift to
GAUGE.
11. Press ESCAPE to return to normal operation.
Configure as a Control Output
1. Enter Program Mode.
2. At SYSTEM press UP/DOWN keys to scroll to OUTPUTS.
3. Press ENTER. The unit will display LIGHTS.
4. Press the DOWN key until unit displays ANALOG OUTPUT.
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5. Press ENTER. The unit will display GAUGE.
6. Press DOWN key until unit displays CONTROL.
7. Press MENU to select this function. An asterisk (*) will appear to the right of the display
indicating the function has been selected.
8. Press ENTER. SAVING will appear briefly on the display. The unit will display MIN
SETPOINT.
9. Press ENTER. The unit will display 0.0.
10. Press UP/DOWN keys to scroll to the MIN SETPOINT value you have defined on your
worksheet.
11. Press ENTER. SAVING will appear briefly on the display and the display will shift to MIN
SETPOINT.
12. Press DOWN until the instrument displays MIN CURRENT.
13. Press ENTER. The unit will display 0.0.
14. Press UP/DOWN keys to scroll to the Minimum Current you have defined on your
worksheet.
15. Press ENTER. SAVING will appear briefly on the display and the display will shift to MIN
CURRENT.
16. Press DOWN until the instrument displays MAX SETPOINT
17. Press ENTER. The unit will display 0.0.
18. Press UP/DOWN keys to scroll to the MAX SETPOINT value you have defined on your
worksheet.
19. Press ENTER. SAVING will appear briefly on the display and the display will shift to MAX
SETPOINT.
20. Press DOWN until the instrument displays MAX CURRENT
21. Press ENTER. The unit will display 0.0.
22. Press UP/DOWN keys to scroll to the MAX CURRENT value you have defined on your
worksheet.
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23. Press ENTER. SAVING will appear briefly on the display and the display will shift to MAX
CURRENT.
24. Press ESCAPE to return to normal operation.
Manual Analog Output
The analog output can be operated in manual mode when it is set up as a control output.
This mode can be used to test the system, and any devices that receive the signal from the
LevelCom 300. This may be used to test the system if the output is to be used as a gauge
output as well. The instrument must be temporarily set up as a control output to use this
function though, and you must be sure to switch the configuration back to a gauge output
when you are done testing.
1. Enter Program Mode.
2. At SYSTEM press UP/DOWN keys to scroll to OUTPUTS.
3. Press ENTER. The unit will display LIGHTS.
4. Press the DOWN key until unit displays ANALOG OUTPUT.
5. Press ENTER. The unit will display GAUGE.
6. Press DOWN key until unit displays CONTROL.
7. Press MENU to select this function if it isn’t already selected. An asterisk (*) will appear to
the right of the display indicating the function has been selected.
8. Press ENTER. SAVING will appear briefly on the display. The unit will display MIN
SETPOINT.
9. Press UP/DOWN keys to scroll to the MANUAL.
10. Press MENU to select the manual mode. An asterisk (*) will appear to the right of the
display indicating the function has been selected.
11. Press ENTER. The unit will display 0.0%. The display shows percent of output signal
now, 0% is 4 mA and 100% is 20 mA.
12. Press UP/DOWN keys to scroll to the output signal level you want.
The instrument may be returned to normal operation now if you want to leave a manual
output value on the instrument. In this case press ESCAPE to return to normal operation.
The instrument will flash the word MANUAL on the display every few seconds to indicate that
it is in manual analog output mode.
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Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
If you want to return to a controlled analog output follow the instructions from here.
1. Press ESCAPE. The display will shift to MANUAL. There will be an asterisk (*) indicating
that the instrument is in Manual mode.
2. Press MENU to clear the asterisk.
3. Press ENTER. SAVING will appear briefly on the display and the display will say
MANUAL. The instrument will now automatically run the analog output.
4. Press ESCAPE to return to normal operation.
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Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
Calibration
Analog Output Calibration
ISOLATE
OFFSET
Required Equipment
1. Accurate current meter for reading the
current output value.
POWER
GAIN-1
GAIN-2
The calibration of the analog output can
be checked and adjusted with the
following procedure. Calibration is not a
routine maintenance procedure. If you are
not sure whether to proceed with
calibration please contact TMS for
guidance prior to adjusting the instrument.
This procedure must be performed by a
qualified technician.
Technical Marine Service
Portland, Oregon
OPTIONAL COMMUNICATION /
OUTPUT MODULE
Figure 10 Input board with Analog Output Installed
2. Wire leads to connect to the LevelCom 300 analog output connector.
NOTE: If the analog output is being used as a control output, be sure to secure the
controlled process before you begin because you may be disconnecting the LevelCom 300
from the controlled process, or you may be generating meaningless control signals while
performing the calibration procedure.
Error! Reference source not found. shows the analog output option board installed on the
input board. The Span and Zero potentiometers are at the top of the analog output option
board.
Calibration Procedure
1. Connect the meter to the Analog output connector. If the LevelCom 300 is set up to
power the analog output you can connect directly to the terminals, however if the output is
set up to be externally powered you will need to connect the meter into the complete
circuit.
2. Enter the LevelCom 300 program. Access the Calibrate menu and select AN OUT.
Press ENTER. ZERO will be displayed. Press ENTER. The meter should read 4 mA. If
it doesn’t adjust the Zero potentiometer on the analog output board until the meter reads
4 mA.
3. Press UP/DOWN keys to scroll to SPAN and press ENTER. The meter should read
20mA. If it doesn’t adjust the Span potentiometer until the meter reads 20 mA.
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Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
4. Press UP/DOWN keys to scroll to ZERO and press ENTER.
5. The meter should read 4 mA. If it does the calibration is complete, if not repeat steps 2 –
4 until the meter reads 4 mA when you enter ZERO, and 20 mA when you enter SPAN.
6. Now you can check the linearity of the output with the other items in this menu. When the
span and zero calibration is done entering the following menu items should give the
following meter readings:
25% - 8 mA
50% - 12 mA
75% - 16 mA
This completes the test and calibration of the analog output circuit.
Page 40
Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
Troubleshooting
The LevelCom 300 is designed to monitor certain system functions and to display error
messages when abnormal situations are detected. These functions include:
Supply Air Pressure - Low pressure
Sense Line - Plugged or leaking Sense line
Internal functions - Sensor zero and EEPROM function.
The following details some of the problems, which may be encountered and corrective
actions to be taken.
NOTE: The LevelCom 300 is a delicate electronic instrument. Qualified individuals must
perform repairs and troubleshooting.
Instrument displays EEPROM FAILURE
This message indicates trouble with the EEPROM (Electrically Erasable Programmable Read
Only Memory) memory that is used to hold the instrument configuration. If this message
occurs when the LevelCom 300 is powered up it means that there were problems when the
instrument was reading the configuration from the EEPROM. If this message occurs when
changing the instrument configuration it means that there were problems when the
instrument was writing new information to the EEPROM. In this case the new information
was not completely stored, but the old information was probably at least partially modified.
The message could mean that there has been a true electrical failure of the EEPROM,
however this is not the only possibility. The following will describe some tests to determine
the cause of the problem.
Turn the LevelCom 300 off and after a short time restore power. If the message does not
appear this time it may indicate that the problem was caused by electrical noise getting into
the LevelCom 300 system. This could happen if there are relays installed and the relays are
driving a large inductive load, like a motor or a solenoid (please note that the relays are rated
“Pilot Duty Only”). If the relay is driving a DC relay or solenoid there should be a
freewheeling diode in the circuit or else large voltage spikes will be generated on the control
circuit when the relay contacts open. These spikes can generate powerful radio frequency
pulses that can effect nearby electronic devices. Similarly if the relay is operating an AC
motor, either directly, or through a slave relay both the starting and stopping of the motor can
generate voltage spikes on the power lines and these spikes can possibly affect the
LevelCom 300 electronics. In this case putting capacitors across the motor terminals can
sometimes help.
This problem will not always show up immediately in a new installation. The LevelCom 300
always verifies the updated contents of the EEPROM as it writes new information. If this
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Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
verification fails, the LevelCom 300 tries again and signals a failure only after a number of
verification failures. The LevelCom 300 stores multiple copies of the configuration and there
is unused space in the EEPROM of a new LevelCom 300 that can be used for configuration
information if there is a partial failure of the EEPROM. The electrical noise described above
can interfere with EEPROM operations in extreme cases. In this case there will not actually
be a failure of the EEPROM but because of the electrical noise, there may have been
verification failures causing the LevelCom 300 to use new areas of the EEPROM. When all
available space is used up the LevelCom 300 will generate the EEPROM FAILURE
message. As a result the instrument will work well for a while and then start showing the
EEPROM FAILURE condition. A way to check for this is to select the ERASE ALL MEMORY
option in the MEMORY menu. This will completely erase any configuration information in the
EEPROM and the LevelCom 300 will need to be reconfigured before being put back into
operation. Then if the instrument works well for a while and once again starts showing the
EEPROM FAILURE condition electrical noise is probably causing the trouble.
If erasing the EEPROM does not get rid of the condition then there is probably something
wrong with the EEPROM and it will need to be replaced.
Instrument displays LOW N2
This message will be displayed if there is insufficient gas pressure for proper instrument
operation. Check the regulator to make sure that the instrument is getting supply gas. Make
sure that the gas bottle valve is open. The instrument needs enough input gas pressure to
guarantee that the sense line can be completely purged. If the water level in the well is deep
the instrument will need a higher input gas pressure than it would need if the water level was
low. The instrument needs a minimum of 100 PSI over the sense line pressure to operate.
If this checks out there may be a problem with the Supply valve. Use the VALVES utility in
the calibrate menu. Operate the Supply valve, blocking valve, and dump valve manually and
gas should come out of the Drain port. If nothing happens make sure that the LEDs on the
solid state relay board light when the buttons are pressed to operate the valves. If the LEDs
don’t light make sure that the flat cable is properly plugged onto the connector on the solid
state relay board. If the connector is attached and the LEDs still don’t light and the valves do
not operate then there is probably an electrical problem on the main controller board. If the
LED lights but a valve does not operate the valve has probably failed.
The CALIBRATE Menu
4-20
The 4-20 item gives direct access to the main output from the sensor circuit. When this item
is activated the display shows the output of the analog to digital converter. This output is
useful to verify that the sensor circuit is functioning. When this item is activated the valves
are all de-energized. The Drain valve is run as a normally open valve so the Drain port now
gives access to the pressure sensor input. It is easy to verify that the sensor circuit is
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Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
working by applying a little air pressure to the Drain port and verifying that the numbers on
the display increase with increasing pressure. The ESC key is used to exit this utility.
Supply Pressure
The Supply Pressure item can be used as a check of the regulator output pressure gauge.
When this item is activated the instrument opens the supply valve and reads the pressure of
the input supply using the pressure sensor. This will probably be a more accurate reading of
the input pressure than the small gauge on the regulator. The ECS button is used to exit this
utility.
Valves
The VALVES item gives direct access to the solenoid valves. When activated the front panel
buttons are used to activate the valves. The following list shows which buttons run which
valves.
BUTTON
VALVE
ENTER
DOWN
MENU
UP
ACK
Supply
Block
Dump
Diff
Main Sense Line
The ESC key is used to exit this utility.
This item is useful for testing the valves. This utility must be used with some caution
however. It is possible, if the Diff valve and the Dump valve were open at the same time that
methane from the well head could flow through the instrument and out the dump valve. This
could create a dangerous situation in an enclosed space. It is the responsibility of the
operator to use this utility in a safe manner.
Relays
The RELAYS item gives direct access to the relays. When activated the UP button operates
Relay 1, the DOWN button operates Relay 2. The relays de-energize on entering this utility.
Pressing the appropriate button energizes the associated relay. This is useful for testing the
function of the relays and the condition of the relay contacts. It is a useful utility when wiring
to external alarm systems or control devices. The ESC key is used to exit this utility.
Display
The DISPLAY item is used to test the entire display. When activated the character display
will show a rotating pattern that lights all segments in a digit including the decimal point. The
ESC key is used to exit this utility.
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Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
Buttons
The BUTTONS item is used to test the front panel buttons. When active the display will
show the name of the last button pressed. This is useful if there is the possibility that one or
more of the buttons have failed. Simultaneously press the ENTER key and the ESC key to
exit this utility.
Analog Output
If the instrument has the analog output option installed there will be another utility available
called AN OUT. This is used for calibration and testing of the analog output. There are five
menu items in this utility. When the display shows ZERO, pressing ENTER forces the analog
output to 4 mA. When the display shows SPAN, pressing ENTER forces the analog output to
20 mA. These are intended for use in calibrating the analog output. These two functions are
used while adjusting the analog output span and zero pots found on the Sensor board in the
LevelCom 300. The 25%, 50%, and 75% items work the same way forcing the analog output
to 8 mA, 12 mA, and 16 mA respectively. They are useful for verifying the linearity of the
analog output, and are also useful for testing the field devices driven by the analog output.
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Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
Analog output trouble shooting
The analog output is a 4-20 mA output. The output may be run as a self-powered output (in
which case the LevelCom 300 provides power) or as an externally powered. When set up to
be externally powered the analog output circuit is electrically isolated from the rest of the
LevelCom 300. If the analog output does not work check the following:
Check the connections to the Analog Output terminals. Make sure the correct connector is
wired, and verify the polarity of the wiring. It may be that something is wired backwards in the
loop. Refer to the wiring diagrams in the installation section of the manual.
Check the jumpers on the sensor board and make sure that the analog output is configured
as self-powered or isolated. All three jumpers must be in place and set to either ISOLATE or
POWER. If the jumpers are in the wrong position the output will not work.
If your instrument has the LC100-A2 or –A3 sensor input circuit board, the analog output is
contained in a small circuit board attached to the sensor-input board. There is an LED on the
analog output board that flashes to indicate that the board is functioning. This LED will be
easy to identify; it is the only flashing LED inside the LevelCom 300 box. If this LED is not
flashing the analog output module has probably failed, and should be replaced.
Modbus Troubleshooting
If the machine is not communicating the first thing to check is the wiring. Verify that the
communication interface is wired correctly, use Appendix A as a guide for wiring.
Verify that the Modbus Address is set correctly.
advanced Setup section of this manual.
See Modbus Communication in the
Verify that the baud rate and parity settings are correct. There are some complications with
the parity settings, especially in the case where no parity information is sent. In
communications with desktop computers the most common parity setting is N-8-1, no parity,
8 bits per byte, 1 stop bit. In some PLCs though the only available no parity setting is
equivalent to N-8-2, no parity, 8 bits per byte, 2 stop bits. In this case the parity bit is still
sent, but it is always sent, acting as the second stop bit. When there is a mix up between
these types the machines will communicate sometimes, but not reliably, or only in one
direction. The second stop bit can sometimes be detected as the start bit of the next byte if a
N-8-2 setup is communicating with a N-8-1 setup. This results in framing errors at the
receiving end and failed communication. See Modbus Communication in the advanced
Setup section of this manual.
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Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
Appendix A
Serial Network Wiring Diagrams
There are three typical networking configurations:
Figure 12 Four-Wire RS-485 configuration (Single
Drop)
Figure 11 Two-Wire RS-485 configuration (Multiple
Drops)
Figure 13 Four-Wire RS-485 configuration
(Multiple Drops)
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Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
Appendix B
MODBUS Register Map
The MODBUS Register map is as follows:
Register
30001
30002
30003
30004
30005
30006
30007
30008
30009
30010
30011
30012
30013
30014
30015
30016
mb_depth
mb_diff
mb_supply
mb_temperature
mb_zero
mb_sg
mb_before_1
mb_after_1
mb_before_2
mb_after_2
mb_charges
mb_current_reading
pressure_sp
hours
minutes
seconds
Description
Input Registers
Depth in inches
well head differential pressure, in PSI
Measured supply pressure, accurate if in first low air
Temperature measured by onboard sensor
the measured zero offset of the sensor, corrected for temperature
Specific gravity * 1000
Depth before last sample
Depth after last sample
Depth before present sample
Depth after present sample
total manifold charges so far
Current sensor reading, unprocessed
Pressure setpoint for tracking pressure
clock hours
clock minutes
clock seconds
10001
10002
10003
10004
10005
10006
10007
10008
10009
10010
10011
10012
mb_alm_hihi
mb_alm_hi
mb_alm_lo
mb_alm_lolo
Input Bit registers. These are used to signal various fault conditions
Hi-Hi Alarm Active
Hi Alarm Active
Lo Alarm Active
Lo-Lo Alarm Active
mb_alm_loopfail
mb_alm_sgplug
mb_alm_dpplug
mb_alm_eepfail
mb_alm_leak
mb_alm_mainplug
mb_alm_lowair
4-20mA loop failure
SG (Specific Gravity) line plugged
DP (Differential Pressure) line plugged
EEPROM failure
Main Sense line leak
Main Sense line plugged
Low air supply pressure
mb_purge
mb_sample
mb_ack
mb_restart
Coil Registers definition. Setting these coils triggers the
Described actions. When the action is initiated by the LevelCom 300, the coil is cleared.
Trigger purge cycle
Trigger new sample operation
Remote acknowledge for alarm and fault conditions
Restart the LevelCom 300
00001
00002
00003
00004
Label
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Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
Notes:
Input Registers
For SCADA systems the following parameters are of interest. The rest are more for
development of the machine, to give some window into it's functioning. All of these
parameters are 16 bit integers.
30001 mb_depth
depth in inches
Depth is given in .1 inches.
Levelcom 300 are as follows:
The conversion factors for the other units available in the
Feet = inches / 12
centimeters = inches * 2.54
meters = inches * 0.0254
30002 mb_diff
This is the well head pressure in PSI. The effect of this pressure has already been removed
from the depth reading above, however this pressure will probably be of interest to the user
separately.
30004 mb_temperature
This is the temperature in degrees F. It is a measure of the temperature of the box the
machine is mounted in, not the outside air temperature. Temperature readings are used to
correct for sensor zero drift between readings.
30006 mb_sg
specific gravity relative to water * 1000.
This is the specific gravity value used to convert the pressure sensor readings to depth. If
the machine is not reading depth correctly, this is the first place to look for trouble. It might
be that the water in the well has a specific gravity different from fresh water, in that case this
parameter will be configured on the machine to a value other than 1.000. This value as read
must be devided by 1000 to get the actual specific gravity value.
Input Bits
The following input bits are used to indicate fault conditions on the machine
10006 mb_alm_loopfail
4-20 mA loop failure
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Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
This signals a failure of the main pressure sensor. When this flag is active, the machine is
not working and any readings of depth are invalid.
10008 mb_alm_dpplug
DP line plugged
The machine has detected too high a pressure on the well head sense line. It is most likely
that the sense line is plugged.
10009 mb_alm_eepfail
EEPROM failure
The configuration EEPROM in the machine is unreadable. If the machine is communicating
at all (it's Modbus address is stored in the EEPROM) this flag also signals that the machine is
not functioning, and any readings of depth are invalid.
10010 mb_alm_leak
main sense line leak
A leak on the main sense line has been detected. The machine will still try to read depth, but
the depth readings are probably not accurate because of the leak. If the leak is small enough
the first readings after a sample operation might be fairly accurate, but the following data will
be increasingly in error.
10011 mb_alm_mainplug
main sense line plugged
The machine has detected too high a pressure on the main sense line (the calculated depth
is greater than the well depth). The sense line is plugged, and the machine cannot read a
correct depth.
10012 mb_alm_lowair
low air
The input gas supply pressure is low. This flag is triggered when the input gas pressure is
less than the sense line back pressure + 100 PSI. The machine can still function, but the gas
bottle must be replaced. When this flag is active the machine will quit sampling
automatically, but will still sample manually.
10013 mb_alm_rd_good
new sample operation complete
When a manual sample is requested by setting the 00002 mb_sample coil, this flag will clear.
When the new sample operation is complete this flag will be set to signal that the new
reading is available in 30001 mb_depth.
10014 mb_alm_no_air
final low input gas alarm
The supply gas pressure is equal to the sense line pressure. The machine can no longer
provide gas to the sense line and the depth readings may not be accurate. The gas bottle
must be replaced to bring the machine back into normal operation.
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Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
Coil Register Bits
The following coils are used to trigger operations on the machine. Setting them triggers the
desired action, the machine will clear them by itself. If these coils are read, they should
always read as 0.
00001 mb_purge
trigger purge
This starts the commisioning purge function on the machine. This is used to bring the
machine into operation only. This uses quite a lot of gas and is only used to get the machine
into operation quickly after the initial installation, or after work has been done on the sense
line system.
00002 mb_sample
take a new sample
When this flag is set triggers a sample operation. It is intended for use when the machine is
in manual sample mode, and a reading is desired. Normally the machine is configured to
sample on a regular schedule and this operation is not required.
00003 mb_ack
remote acknowledge for alarm and fault conditions
If alarms are used this flag can be used to remotely acknowledge the alarms. This will
probably not be used in gas well applications.
00004 mb_restart
restart the machine
This flag triggers a reset on the machine. It is intended for use when the machine is
configured remotely. A restart guarantees that all new parameters are updated in the active
memory. The remote configuration method is still in development so this function does not
have a use at present.
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Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
PROPRIETARY NOTES
DATA
LOGGER
DIGITAL COMMS
SOLID STATE
RELAY BOARD
RELAY
BOARD
TX+
GND
TX-
RXRX +
RED
BLACK
DUMP
VALVE
PNEUMATIC MANIFOLD
DIFFERENTIAL
VALVES
BLOCK
VALVE
FIELD WIRE
FACTORY INTERNAL WIRING
MAIN
VALVES
AIN AIN +
AOUT AOUT +
L2
GND
L1
E
INPUT
VALVE
Figure 14 Wiring Diagram
PRESSURE
TRANSMITER
MAIN
DIFF
DUMP
BLOCK
INPUT
L2
L1
R1 NO
R1 NC
R1 COM
F1 NO
R1 NC
R1 COM
COMM
BOARD
MAIN CONTROLER BOARD
D
CB - 1
F
LevelCom 300
R1 COM
R1 NC
F1 NO
120 VAC L2
GND
C
G
TITLE:
VESSEL
DRAWN BY
DATE
FILE
LevelCom 300 WIRING
Technical Marine Service
Portland, Oregon
R1 NO
B
R1 NC
R1 COM
A
ED HARVEY
11-7-2013
H
6
5
4
3
2
1
Appendix C
Wiring Diagram
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Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
120 VAC L1
Configuration Interface Map
The following pages are a map of the configuration interface. Use these maps to find your
way around the interface.
First a simple map is given as a general guide to the interface. This can be used as a quick
reminder for operators who already have experience configuring LevelCom 300s. Many
details are left out in this diagram to make it fit on a single page.
Following the simple map is a detailed map of the complete configuration interface. This
map is spread out over six pages so be careful in using it. Most of the main menu items are
documented on a single page.
On the first page of the detailed map is a key to the symbols used in the map. If you don’t
understand the symbols you should re-read the sections of this manual and refer to this map
as you read to get familiar with the layout of the map. Once you are familiar with the
configuration interface you should be able to get around quickly just using the map.
Generally to navigate the configuration interface you use the UP and DOWN arrow buttons to
move through the items in a single menu, you use the ENTER button to move one level into
the interface, and you use the ESCAPE button to move one level back. In the diagram this
corresponds to moving to the right using the ENTER button, and moving to the left using the
ESCAPE button.
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Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
UP BUTTON
NORMAL
OPERATION
CALLS FOR A NEW READING
ENTER BUTTON DISPLAYS UNITS OF MEASURE THEN
RETURNS TO NORMAL OPERATION
ESCAPE BUTTON DISPLAYS ANY ALTERNATE ACTIVE
DISPLAY UNITS FOR 20 SECONDS
MODE
THEN
IF HOT MENU EXISTS
IF NOT
300
“HOT MENU”
FLASHES
Program Flow Chart
Version 1.06
DATE 11/2013
HOT MENUE ITEM
HOT MENUE ITEM
Technical Marine Service, Inc.
Portland, Oregon
HOT MENUE ITEM
ETC.
CONFIGURE
SYSTEM
L IQU ID L EVEL
C OMPU TER
IF PASSWORD EXISTS
THEN
IF NOT
ENTER
PASSWORD
******
IF PASSWORD IS CORECT
IF NOT
THEN
KEY
SYSTEM
DISPLAY
SETUP
DEPTH
UNITS
INCHES
MODE BUTTON
USED TO ENTER PROGRAM
MODE AND SELECT OR
DESELECT PARAMETERS
ESCAPE BUTTON
EXIT LEFT TO THE
PREVIOUS BOX
ENTER BUTTON
ADVANCE RIGHT TO THE
NEXT BOX WHILE SAVING
CHANGES TO THE CURRENT
CONFIGURATION
UP BUTTON
MOVES UP THROUGH
A MENU
DOWN BUTTON
MOVES DOWN THROUGH
A MENU
FEET
FEET & INCHES
CENTIMETERS
METERS
WELL
SETUP
MAX DEPTH
BUBBLER
TO BOTTOM
TIMING
NORMAL
SAMPLE
MESSAGE DISPLAYED AT
EACH STATION
WHERE VARIABLES ARE
ENTERED WITH UP AND
DOWN BUTTONS
5 MIN
MODE BUTTON SETS FLAG
TO ACTIVATE OPTION
1 HOUR
2 HOURS
HM
ITEMS THAT CAN BE ADDED
TO THE” HOT MENU”
4 HOURS
6 HOURS
8 HOURS
DEMAND
LOW LEVEL
SAMPLE
1 HOUR
2 HOURS
4 HOURS
6 HOURS
8 HOURS
TRIP
DEPTH
DEFAULT = 0.0
SENSOR
RANGE
DEFAULT = 1000 PSI
SPECIFIC
GRAVITY
DEFAULT = 1.000
COMMISSION
PURGE
RUNS PURGE CYCLE AND
RETURNS TO NORMAL OPERATION
TO PAGE 2
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Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
TO PAGE 1
OUTPUTS
RELAY 1
ALARM
HI HI
HI
LOW
LOW LOW
CONTROL
ON
SETPOINT
HM
OFF
SETPOINT
HM
SYS FAIL
LOCAL
RELAY 2
ALARM
HI HI
HI
LOW
LOW LOW
CONTROL
ONLY APPEARS IF
RELAY MODULE
OPTION IS INSTALLED
ON
SETPOINT
HM
OFF
SETPOINT
HM
SYS FAIL
LOCAL
ALARM
SETPOINTS
HI HI ALARM
HM
HI HI HYS
HI ALARM
HM
HI HYS
LO ALARM
HM
LO HYS
LO LO ALARM
HM
LO LO HYS
ANALOG
OUTPUT
GAUGE
CONTROL
MIN
SETPOINT
MIN
CURRENT
MAX
SETPOINT
MAX
CURRENT
MANUAL
ONLY APPEARS IF
ANALOG OUTPUT
OPTION IS INSTALLED
IN MANUAL MODE 4-20ma OUTPUT IS
MANIPULATED WITH UP AND DOWN BUTTONS
AND DISPLAYED 0-100% ON THE DIGITAL DISPLAY
BAR GRAPH REMAINS DEPTH DISPLAY
TO PAGE 3
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Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
TO PAGE 2
HOT MENU
SETUP
NEW
PASSWORD
UTILITIES
ALL ITEMS MARKED AS “HOT MENU SELECTIONS”
AND THAT HAVE BEEN CONFIGURED AS ACTIVE
WILL APPEAR HERE AND CAN BE ADDED TO THE HOT MENU
******
COM
SETUP
NETWORK
ADDRESS
BAUD RATE
1200
2400
4800
9600
19200
PARITY
N- 8 - 1
N- 8 - 2
EVEN
ODD
DIAGNOSTICS
EVENT
COUNT
EXCEPTION
COUNT
MESSAGE
COUNT
CRC ERROR
COUNT
CALIBRATE
4 - 20
DISPLAYS RAW
A / D INPUT
SUPPLY
PRESSURE
DISPLAYS INPUT GAS
PRESSURE IN PSI
VALVE TEST
PRESS BUTTONS TO
CYCLE VALVES
RELAY TEST
UP ENERGIZES RELAY1
DOWN ENERGIZES RELAY 2
DISPLAY TEST
BUTTON TEST
ANALOG
OUTPUT
MEMORY
CYCLES ALL
LED'S
DISPLAY SHOWS IDENTITY
OF ANY BUTTON PUSHED
" PUSH ENTER & ESC TO
RETURN TO CALIBRATE "
ZERO
SETS OUTPUT TO MIN
SPAN
SETS OUTPUT TO MAX
25 %
SETS OUTPUT TO 25 %
50 %
SETS OUTPUT TO 50 %
75 %
SETS OUTPUT TO 75 %
WRITE OVER
BACKUP
UPDATES BACKUP TO MATCH
CURRENT CONFIGURATION AND
RETURNS TO NORMAL CONFIGURATION
RESTORE
FROM
BACKUP
REPLACES CURRENT CONFIGURATION
WITH BACKUP CONFIGURATION AND
RETURNS TO NORMAL OPERATION
ERASE
CURRENT
SETUP
ERASES CURRENT CONFIGURATION
PRESERVES BACKUP CONFIGURATION
USES FACTORY DEFAULTS AND
RETURNS TO NORMAL OPERATION
ERASE ALL
ERASES CURRENT CONFIGURATION
ERASES BACKUP CONFIGURATION
USES FACTORY DEFAULTS AND
RETURNS TO NORMAL OPERATION
Page 55
Copyright © 2013 Technical Marine Service, Inc. LC-300 v1.06
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