MTS Systems Level Plus Interface Manual

Level Plus

®

HART® Interface Manual

LP Series

Magnetostrictive Liquid Level Transmitters
with Temposonics

®

Technology

2

HART® Interface Manual

LP Series

Table of contents

1. Contact information ....................................................................3

2. Terms and denitions .................................................................4

3. Introduction .................................................................................6

4. Safety instructions ......................................................................6

5. Quick start-up guide ...................................................................6

5.1 Before you begin ................................................................... 6

5.2 Quick start-up procedure ...................................................... 6

6. Display Menu ..............................................................................6

6.1 Operation Modes ................................................................... 6

6.1.1 Run Mode ...................................................................... 6

6.1.1 Program Mode ............................................................... 6

6.2 Display Diagram .................................................................... 7

6.3 Menu Structure ..................................................................... 7

7. Alarms .........................................................................................7

7.1 Software fault alarms ............................................................ 7

7.2 Hardware fault alarms ........................................................... 7

8. Error Codes (Faults) ....................................................................8

9. HART

®

interface ..........................................................................8

9.1 Analog setup software .......................................................... 8

9.1.1 Installing setup software ................................................ 8

9.1.2 General parameters ........................................................ 9

9.1.3 Process data ................................................................ 10

9.1.4 Output setup ............................................................... 10

9.1.4.1 Output ................................................................. 10

9.1.4.2 Calibrate .............................................................. 10

9.2 Handheld programming ...................................................... 10

9.3 Programming from the display ........................................... 10

9.3.1 Data from the device .................................................... 10

9.3.2 Calibrate ....................................................................... 11

9.3.3 Factory ........................................................................ 11

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HART® Interface Manual

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1. Contact information

United States

General

Tel: [phone]
Fax: [phone]
E-mail: [e-mail]

http://www.mtssensors.com

Mailing and shipping address

MTS Systems Corporation
Sensors Division
3001 Sheldon Drive
Cary, North Carolina, 27513, USA

Customer service

Tel: [phone]
Fax: [phone]
E-mail: [e-mail]

Technical support and applications

24 Hour Emergency Technical Support
Tel: [phone]
e-mail: [e-mail]

Germany

General

Tel.: [phone]
Fax: [phone]
e-mail: [e-mail]

http://www.mtssensors.com

Mailing and shipping address

MTS Sensor Technologie, GmbH & Co. KG
Auf dem Schüffel 9
D - 58513 Lüdenscheid, Germany

Technical support and applications

Tel.: [phone]
e-mail: [e-mail]

http://www.mtssensors.com

Japan

General

Tel.: [phone]
Fax: [phone]
e-mail: [e-mail]

http://www.mtssensors.com

Mailing and shipping address

MTS Sensors Technology Corporation
737 Aihara-machi, Machida-shi
Tokyo 194-0211, Japan

Technical support and applications

Tel.: [phone]
Fax: [phone]

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HART® Interface Manual

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2. Terms and denitions

6A Heavy Oils

‘Generalized Crude Oils’, Correction of Volume to 60 °F against API
Gravity.

6B Light Oils

‘Generalized Products’, Correction of Volume to
60 °F against API Gravity.

6C Chemical

‘Volume Correction Factors (VCF)’ for individual and special applica­tions, volume correction to 60 °F against thermal expansion coef­cients.

6C Mod

An adjustable temperature reference for dening VCF.

A

API Gravity

The measure of how heavy or light a petroleum liquid is compared to

water. Allowable values are 0 to 100 degrees API for (6A) and 0 to 85
degrees API for (6B).

D

DDA

‘Direct Digital Access’ – The proprietary digital protocol developed by

MTS for use in intrinsically safe areas.

Density

Mass divided by the volume of an object at a specic temperature. The

density value should be entered as lb / cu. ft..

E

Explosion proof

Type of protection based on enclosure in which the parts which can

ignite an explosive gas atmosphere are placed within, and which can
withstand the pressure developed during an internal explosion of an ex­plosive mixture, and which prevents the transmission of the explosion
to the explosive gas atmosphere surrounding the enclosure.

F

Flame proof

Type of protection based on enclosure in which the parts which can

ignite an explosive gas atmosphere are placed within and which can
withstand the pressure developed during an internal explosion of an ex­plosive mixture, and which prevents the transmission of the explosion
to the explosive gas atmosphere surrounding the enclosure.

FOUNDATION™ eldbus

An all digital, serial, two-way communications system that serves as

the base-level network in a plant or factory automation environment.

Developed and administered by the eldbus FOUNDATION™.

G

GOVI

‘Gross Observed Volume of the Interface’ – The total volume of the tank

occupied by the interface liquid. The GOVI is only given when mea­suring two liquids and is calculated by subtracting the volume of the
product from the total volume of liquid in the tank (GOVT – GOVP).

GOVP
‘Gross Observed Volume of the Product’ – The total volume of the tank

occupied by the product liquid. When measuring only one liquid, it is
also the total volume of liquid in the tank (GOVT). When measuring two
liquids it is the total volume of liquid in the tank minus the volume of
the interface liquid (GOVT – GOVI).

GOVT
‘Total Gross Observed Volume’ – The total volume of liquid in the tank.

When measuring only one liquid it is equal to the volume of the product
(GOVP). When measuring two liquids it is equal to the volume of the
product and interface liquids (GOVP + GOVI).

GOVU
‘Gross Observed Volume Ullage’ – the difference in volume between the

working capacity of a tank and the total volume in the tank (Working
Capacity – GOVT).

H

HART

®

A Bidirectional communication protocol that provides data access

between intelligent eld instruments and host systems.

I

Interface

Noun; The measurement of the level of one liquid when that liquid is

below another liquid.

Interface
Adj.; The Software Graphical User Interface (GUI) that allows the user

to access software protocols (HART®, DDA, MODBUS).

Intrinsic safety
‘Intrinsically safe’ - Type of protection based on the restriction of

electrical energy within apparatus of interconnecting wiring exposed to
potentially explosive atmosphere to a level below that which can cause
ignition by either sparking or heating effects.

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HART® Interface Manual

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M

Mass

The property of a body that causes it to have weight in a gravitational

eld, calculated by density at the reference temperature multiplied by

the volume correction factor (Density * VCF).

MODBUS
A serial communications protocol published by Modicon in 1979 for use

with its programmable logic controllers (PLCs). It has become a de fac­to standard communications protocol in industry, and is now the most
commonly available means of connecting industrial electronic devices.

N

NEMA Type 4X

A product Enclosure intended for indoor or outdoor use primarily to

provide a degree of protection against corrosion, windblown dust and
rain, splashing water, and hose-directed water; and to be undamaged by
the formation of ice on the enclosure. They are not intended to provide
protection against conditions such as internal condensation or internal
icing.

NPT
U.S. standard dening tapered pipe threads used to join pipes and

ttings.

NSVP
‘Net Standard Volume of the Product’ – The temperature corrected

volume for the product liquid in the tank, requires the transmitter to
be ordered with temperature measurement capabilities. The NSVP is
calculated by multiplying the volume of the product liquid by a volume
correction factor based on temperature (GOVP * VCF).

R

Reference Temperature

The temperature at which the density measurement is given, the allow-

able values are 32 °F to 150 °F (0 °C to 66 °C).

S

Specic Gravity
The density ratio of a liquid to the density of water at the same condi-

tions.

Sphere Radius
The internal radius of the sphere that contains the liquid, the value is

used to calculate the volume along with the Sphere Offset.

Sphere Offset

An offset value that accounts for additional volume in a sphere from

non-uniform sphere geometry, the value is used to calculate the volume
along with the Sphere Radius.

Strap Table

A table of measurement correlating the height of a vessel to the volume
that is contained at that height. The transmitter can contain up to 100
points.

T

TEC

‘Thermal Expansion Coefcient’ - a value correlating the change in tem-

perature for an object with the change in its volume. Allowable values
are 270.0 to 930.0. TEC units are in 10 E-6/Deg F.

Temperature Correction Method
One of ve product correction methods used to correct the product

volume in the tank due to changes in temperature from 60 °F including
(6A, 6B, 6C, 6C Mod, and Custom Table.

V

Volume Calculation Mode

One of two methods use to calculate volume measurements from level

measurements, including Sphere and Strap Table.

VCF
‘Volume Correction Factor’ – A table of measurements correlating

temperature points with correction factors for the liquids expansion/
contraction. The transmitter can contain up to 50 points.

W

Working Capacity

The maximum volume of liquid that the user desires for their vessel to

hold, typically 80% of the vessels maximum volume before overll.

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3. Introduction

3.1 Purpose and use of this manual

The content of this technical documentation and of its various
annexes is intended to provide information on the HART® Interface of

the LP Series. All safety related information is in the product specic

operation manual.

3.2 Used symbols and warnings

Warnings are intended for your personal safety and for avoidance
of damage to the described product or connected devices. In this
documentation, safety information and warnings to avoid dangers that
might affect the life and health of personnel or cause material damage

are highlighted by the preceding pictogram, which is dened below.

4. Safety instructions

4.1 Intended use

The purpose of this document is to provide detailed information on
the protocol interface. All safety related information is in the product

specic operation manual. Consult the operation manual before

connecting to the level transmitter.

5. Quick start-up guide

5.1 Before you begin

Tools needed:

• 24 Vdc linear regulated power supply

• Current meter

5.2 Quick start-up procedure

1. Connect 24 Vdc power supply to Loop 1.

2. Turn on power supply.

3. Connect Current Meter to test pins on interconnect board.

4. Move the oat towards the tip of the pipe and verify 4 mA set
point.

5. Move the oat towards the top of the pipe and verify 20 mA set
point.

6. If using two oats, repeat steps 4 and 5 for second oat. Note
both oats must be present or else the level transmitter will go
into alarm.

Before starting the operation of the equipment read this documentation
thoroughly and follow the safety information.

Symbol Meaning

NOTICE

This symbol is used to point to situations
that may lead to material damage and/or personal
injury.

7. Turn off power and disconnect power supply and current meter.

8. Install in tank.

6. Display Menu

All LP-Series liquid level transmitters are shipped with a Stylus (MTS
Part # 404108) to be used for manipulating the display. For single and
dual cavity housings, the Stylus is designed to allow for programming
of the unit without removing the housing. When using the Stylus make
sure to align the Stylus with the shape outline around the buttons in
the same orientation. Failure to correctly align the Stylus can cause the
display to not function properly.

Note:

Do not use any device other than the MTS Stylus to operate the display
on the LP Series.

Note:

Improper use of the Stylus can cause the display to not function
properly.

6.1 Operation Modes

The LP Series level transmitter runs in one of the following modes of
operation. You can use these modes to calibrate and set up various
operating parameters.

6.1.1 Run Mode

Run mode is the primary mode of operation. This mode will perform
measurements, display data, and respond to HART

®

commands.

6.1.2 Program Mode

Program mode is the primary mode for commissioning and trouble­shooting the level transmitter. The full menu and available functions are
shown in section 6.3 Menu Structure. To enter program mode use the
Stylus and press the Enter Key as shown in section 6.2 Display Diagram.
Program Mode is protected by a password to keep unwarranted chan­ges from occurring. The factory default password is 27513. When in
program mode, remote communications are not functional. An automa­tic timeout feature is provided so that the transmitter does not remain
inadvertently in program mode. The timeout is set for 1 minute before
prompted for additional time. Total timeout is 2 minutes.

Note:

Whenever program mode is exited from the display the unit will reset
itself to insure all changes have been accepted. The reset will take
approximately 5 seconds before the level transmitter is able to respond
to commands.

Note:

In program mode, the transmitter will not respond to incoming HART

®

commands. A busy error will be sent to the controller to notify the
unit is in program mode. This function will prevent a user at a remote
terminal from programming the unit while a user is accessing program
mode from the display.

Note:

Output will vary depending on the location of the 4 and 20 mA set
points.

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HART® Interface Manual

LP Series

6.2 Display Diagram

Fig. 1 Display

UP Arrow – Used to move cursor on screen up and to increment num­ber
DOWN Arrow – Used to move cursor on screen down and to decrease
number
SCROLL Arrow – Used to move cursor on screen to the right, cursor will
cycle back
ENTER Key – Used to Enter Program Mode, select Highlighted Item, and

Conrm Selection

EXIT Key – Hidden key in the middle of the display that is used to exit
menu at any time
MEASURED VARIABLE – The process variable that is selected to display.
The display will automatically scroll between selected variables.
MEASUREMENT – The numerical value for the MEASURED VARIABLE
shown on the display.
UNITs – Unit of measurement for the MEASURED VARIABLE shown on
the display.
TEMPERATURE – Average temperature for the product in the tank. Only
shown if the level transmitter was purchased with temperature.
NOTIFICATIONS – Four squares with letters. Top left square is blank.
Top right square, A, will only show when there is an alarm. Toggle the
UP Arrow key to view alarms. Bottom right square, F, will only show
when there is a fault. Toggle the DOWN Arrow key to view error codes.
Bottom left square, P, will only show when the units is being program­med remotely.

6.3 Menu Structure

Go to section 9.3 for more information about how to program the unit
from the display.

• Data From Device
 Display
 Units

` Length Units
` Temp Units

 Set Points

` Prod LVR (4 mA)
` Prd URV (20 mA)
` Prd Current LRV
` Prd Current URV
` Int LRV (4 mA)
` Int URV (20 mA)

` Int Current LRV

` Int Current URV
 Alarm Select
 Signal Strength

` Prod Trig Lvl

` Int Trig Lvl

• Calibrate
 Product Level

` Current Level
` Offset

 Interface Level

` Current Level
` Offset

• Factory
 Settings

` Gradient
` Serial Number
` HW Revision
` SW Revision
` SARA Blanking
` Magnet Blanking
` Gain

` Min Trig Level
 Temp Setup
 Temp Enable

 No of Temp
 Float Cong

` Loop 1

` Loop 2
 Damping

` Loop 1

` Loop 2
 Auto Threshold
 Reset to Factory

7. Alarms

MTS has two separate types of alarms featuring both a software fault
alarm and a hardware fault alarm.

7.1 Software Fault Alarm

MTS offers a software fault alarm that will force the 4-20 mA output into
an either a low or high alarm state. The default setting from the factory

is a low alarm state. The low alarm state is ≤ 3.6 mA and the high alarm
state is ≥ 21 mA. The software fault alarm follows the recommendations

set forth by NAMUR NE 43. Typical faults that will cause a software fault

alarm are a missing oat, the oat in the inactive range, and the level
transmitter looking for the wrong number of oats.

7.2 Hardware Fault Alarm

MTS offers a hardware fault alarm that will force the 4-20 mA output
into a low alarm. The hardware low alarm is 3.2 mA. The hardware low
alarm is triggered when the internal diagnostics of the level transmitter
have detected a hardware issue with the 4-20 mA output.

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HART® Interface Manual

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101 Missing

Magnet

• Verify Float Conguration is correct for the
number of oats installed

• Verify Float(s) are not in inactive zone.

• Verify Auto Threshold is enabled.

• Cycle power to sensor. If proper operation
is not restored, Contact Factory

102 Internal

Fault 1

Cycle power to sensor. If proper operation
is not restored, Contact Factory

103 Internal

Fault 2

Cycle power to sensor. If proper operation
is not restored, Contact Factory

104 Internal

Fault 3

Cycle power to sensor. If proper operation
is not restored, Contact Factory

105 Lobe Fault 1 • Verify Auto Threshold is enabled

• Cycle power to sensor

• If proper operation is not restored, Con­tact Factory

106 Lobe Fault 2 • Verify Auto Threshold is enabled

• Cycle power to sensor

• If proper operation is not restored,
Contact Factory

107 Delta Fault Contact Factory to discuss application.

108 Internal

Fault 4

Cycle power to sensor. If proper operation
is not restored, Contact Factory

109 Peak Fault • Verify Auto Threshold is enabled

• Cycle power to sensor

• If proper operation is not restored,
Contact Factory

110 Hardware

Fault 1

Cycle power to sensor. If proper operation
is not restored, Contact Factory

111 Power Fault • Cycle power to sensor

• Verify Power Supply rating

• Verify wiring

• If proper operation is not restored,
Contact Factory

112 Hardware

Fault 2

Cycle power to sensor. If proper operation
is not restored, Contact Factory

113 Hardware

Fault 3

Cycle power to sensor. If proper operation
is not restored, Contact Factory

114 Hardware

Fault 4

Cycle power to sensor. If proper operation
is not restored, Contact Factory

115 Timing

Fault 1

Cycle power to sensor. If proper operation
is not restored, Contact Factory

116 Timing

Fault 2

Cycle power to sensor. If proper operation
is not restored, Contact Factory

117 Timing

Fault 3

Cycle power to sensor. If proper operation
is not restored, Contact Factory

118 DAC Fault 1 Cycle power to sensor. If proper operation

is not restored, Contact Factory

119 DAC Fault 2 Cycle power to sensor. If proper operation

is not restored, Contact Factory

120 DAC Fault 3 Cycle power to sensor. If proper operation

is not restored, Contact Factory

Fault
Code

Description Corrective Action Fault

Code

Description Corrective Action

121 DAC Fault 4 Cycle power to sensor. If proper operation

is not restored, Contact Factory

122 SPI Fault 1 Cycle power to sensor. If proper operation

is not restored, Contact Factory

123 SPI Fault 2 Cycle power to sensor. If proper operation

is not restored, Contact Factory

124 Setpoint

Fault

The analog setpoints are too close. Mini­mum distance is 150 mm (6 in.) for analog
and 290 mm (11.5 in.) for SIL. Adjust
programmed setpoints as needed. (Analog
only) If proper operation is not restored,
Contact Factory

125 Loop 1 Out

of Range

Verify that magnets are positioned within
expected measuring range. Adjust pro­grammed setpoints as needed. (Analog
only) If proper operation is not restored,
Contact Factory

126 Loop 2 Out

of Range

Verify that magnets are positioned within
expected measuring range. Adjust pro­grammed setpoints as needed. (Analog
only) If proper operation is not restored,
Contact Factory

127 EEPROM

Fault 1

Cycle power to sensor. If proper operation
is not restored, Contact Factory

128 EEPROM

Fault 2

Cycle power to sensor. If proper operation
is not restored, Contact Factory

129 Flash Failure Cycle power to sensor. If proper operation

is not restored, Contact Factory

130 Internal

Error

Cycle power to sensor. If proper operation
is not restored, Contact Factory

8. Error Codes (Faults)

9. HART® Interface

MTS has tested and is compliant to HART® ITK 7.2. The device driver le
is available for download from HART

®

Communication Protocol website
at http://www.hartcomm.org or from MTS at

http://www.mtssensors.com. Programming via HART

®

can be done

either using the MTS Analog Setup Software via a HART

®

modem or a

handheld programmer.

9.1 Analog Setup Software

9.1.1 Installing Setup Software

Adjustments to the calibration and setup parameters of the HART®
interface can be performed using the MTS LP Dashboard. The software
can be run from any Windows 7 or newer OS using a HART

®

to USB

converter (MTS part # 380068).

Perform the following steps to install the setup software and establish
communication:

1. Install setup software from the USB stick that came with the level
transmitter or go to http://www.mtssensors.com to download the
latest version.

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HART® Interface Manual

LP Series

2. Connect level transmitter to HART® to USB converter, connect
24 Vdc power to the level transmitter, and connect the HART

®

to

USB converter to the PC. Example setup shown below.

Note:

Power must be on Loop 1 for HART

®

communication to work. Power
does not have to be applied on Loop 2 for HART® to work. Power must
be applied to Loop 2 to check current output.

Note:

HART

®

requires a load resistor to work correctly. Add a 250 Ohm
resistor for proper communication. Some PLC cards will have built
in load resistors.

Fig. 2 Example setup

3. Open setup software. Select HART

®

Protocol.

4. Select COM Port. Software will show active components. If you do
not know which COM port to select, right click Computer on the
desktop and select Properties. On the left hand side menu you can
click Device Manager. In Device Manager click on the + sign next to
Ports (COM & LPT) to view list. An error message will appear if
HART

®

does not successfully connect.

9.1.2 General Parameters

The General Parameters selection in the Setup Software shows the basic
setup for the level transmitter.

Manufacturer ID Code

The Manufacturer ID Code is a unique numerical code that is supplied to
each HART

®

certified manufacturer. This parameter cannot be changed.

Device Code

The Device Code is a unique numerical code assigned to each HART®
certified product. This parameter cannot be changed.

Device Serial Number

The Device Serial Number is the unique identifier for the unit from MTS
and should not be changed. The serial number is used for tracking and
determining spare parts.

Gradient

The gradient is a calibration factor that is unique for each transmitter.
Typical values are between 8.9 and 9.2 µs/in.

Display Units

The Display Units has a drop down menu where the user can select Nor­mal, mA, or percent. Normal changes the display to show the enginee­ring units selected. mA changes the display to show the output in mA.
Percent changes the display to show the output in percentage full.

Float 2

Float 2 allows the user to turn on or off the option of looking for a second
float. Do not Enable this option if a second float is not present on the
level transmitter or else the level transmitter will enter alarm. Float 2
does not enable a second loop unless the level transmitter was ordered
with a second loop. Both float positions can be viewed via HART

®

over a

one loop transmitter.

Temperature

Temperature allows the user to turn on or off the option of measuring
temperature. Temperature will not work if a temperature element was
not ordered with the level transmitter from the factory. The Temperature
will show on the display but will not change from 32° F (0° C).

Damping

Damping slows the rate of change for the output signal. It does not
change the output but dampens how quickly the output follow the
change in the float position. The standard rate of change would have the
Damping set to 0.400 seconds.

Others

Length, Head Adder, and Display are not used by the LP Series. These
are shown for backwards compatibility and should not be changed.

Fig. 3 General Parameters window

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HART® Interface Manual

LP Series

9.1.3 Process Data

Fig. 4 Process data window

The Process Data section of the setup software allows the user to view
the current output of the level transmitter in the engineering units and log
data to a file.

9.1.4 Output Setup

The Output Setup section of the setup software allows the user to change
the engineering units, mapping of variables to Loops, and set the 4 and
20 mA set points.

9.1.4.1 Output

Fig. 5 Ouput window

The Output allows the user to select the Temperature Units and Length
Units. The Temperature units will only work if the level transmitter was
ordered with temperature sensing capability. The Temperature and Length
units will change on the display and over HART

®

communication.
The Output Mapping can be changed by changing the selected variable for
PV, SV, and TV. PV is mapped to Loop 1 and the selected process variable
will modulate the Loop 1 current when selected. SV is mapped to Loop 2
and the selected process variable will modulate the Loop 2 current when
selected. TV is not mapped to a Loop and is only viewable via HART

®

.

9.1.4.2 Calibrate

Fig. 6 Calibrate window

Calibrate allows the user to change the set points for levels and tempe­rature. The user can Read and Write the 4 mA (Zero or LRV) and 20 mA
(Span or URV) independently for each variable. The values need to stay
within the active range of the level transmitter or else the 4 and 20 mA
set points cannot be reached and a tank can overflow or run dry. Do not
modify the Offset field.

9.2 Handheld Programming

MTS is working on creating a handheld DD file. Once it is released this
section will be updated with more information. Please contact Technical
Support with any questions.

9.3 Programming from the Display

The factory password for entering the display is 27513.

9.3.1 Data from Device

Display

Allows the user to select if the display shows engineering units, mA, or
percent full.

Units

Allows the user to change the selected Length Units and/or Temperature
Units.

Set Points

Allows the user to change the 4 and 20 mA set points in two ways. The
user can select Prd LRV (4 mA), Prd URV (20 mA), Int LRV (4 mA), and
or Int URV (20 mA) to enter the desired location for the set points in
engineering units. Alternatively the user can use Prd Current LRV, Prd
Current URV, Int Current LRV, and/or Int Current URV and move the float
to the desired location of the set points while setting the 4 and 20 mA
locations.

Alarm Select

Allows the user to choose between a High Alarm (>21 mA) and a Low
Alarm (<3.6 mA) for software alarm faults. The default setting is Low
Alarm. MTS complies with NAMUR NE 43.

Signal Strength

Allows the user to view the strength of the return signal for the product

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HART® Interface Manual

LP Series

float (Prod Trig Lvl) and the Interface float (Int Trig Lvl). If the Interface
float is not active no signal can be viewed.

9.3.2 Calibrate

Product Level

Allows the user to change the level in engineering units if needed.
Typically this is not needed for analog output units. The user should
use the Current Level selection and enter the current position of the
float. The user is advised not to use the Offset feature without help from
Technical Support.

Interface Level

Allows the user to change the level in engineering units if needed.
Typically this is not needed for analog output units. The user should
use the Current Level selection and enter the current position of the
float. The user is advised not to use the Offset feature without help from
Technical Support.

9.3.3 Factory

Settings

Menu section that contains factory parameters. Do not edit these para­meters without talking to Technical Support.

Gradient

The gradient is a calibration factor that is unique for each transmitter.
Typical values are between 8.9 and 9.2 µs/in.

Serial Number

The Serial Number is the unique identifier for the unit from MTS and
should not be changed. The serial number is used for tracking and
determining spare parts.

SARA Blanking

Initial blanking distance from the head of the level transmitter. Do not
change.

Magnet Blanking

Blanking distance between two floats. Do not change.

Gain

Measurement of how large an interrogation signal is used. Do not
change without Technical Support.

Min Trig Level

Threshold level for return signal to qualify as a valid signal and not noise.

Temp Setup

Allows the user to turn the temperature measurement on or off. Turning
it on will not cause the temperature to work if no temperature measure­ment was ordered.

No. of Temp

Change the number of temperature points the level transmitters is
looking for. Changing this number does not change the number of
temperature measurement points that were ordered or whether or not
temperature measurement was ordered.

Float Cong

Allows the user to enable or disable the product float (Loop 1) and/or the
interface float (Loop 2). The first float measured by the electronics will
be used as the product float. If the interface float is turned on and there
is no second float both loops will go into alarm.

Damping

Damping slows the rate of change for the output signal. It does not
change the output but dampens how quickly the output follow the change
in the float position. The standard rate of change would have the Dam­ping set to 3276. Loop 1 and Loop 2 can be dampened independently

Auto Threshold

Do not disable.

Reset to Factory

Allows the user to reset the electronics to the original factory settings.
This should be used to return the electronics to a known good state when
troubleshooting.

12

Document Part Number:

551699 Revision A (EN) 10/2016

Reg.-No. 003095-QN

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