Emerson LTM-300 manual Table of Contents

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LTM-300 Magnetostrictive Level Transmitter

Instruction and Maintenance Manual

Table of Contents

Section 1. Transmitter Overview

Page

1.0 General Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.1 Level Transmitter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.2 Gage Mounted Transmitter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.3 Standalone Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Section 2. Instrument Description

Page

2.0 Transmitter Detailed Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

2.1 Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2.1.1 Primary Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2.1.2 Level/ Temperature Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.1.3 Level/ Interface/ Temperature Transmitter . . . . . . . . . . . . . . . . . . . . . . 3

Section 3. Installation and Wiring

Page

3.0 Strap-On Transmitter Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

3.1 Standalone Transmitter Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

3.2 Recommended Wiring, Single Loop . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Section 4. Specifications

Page

4.0

Transmitter Electrical Specifications

. . 4

4.1

Transmitter Sensor Tube

.. . 4

Section 5. Calibration

Page

5.0 Single Loop Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 5.1 On-Board Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Section 6. Troubleshooting and Maintenance

Page

6.0 Self Diagnostics (Via HART) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

6.1 Calibration Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

6.2 Magnetic Interference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

6.3 Troubleshooting Power Supply Problems . . . . . . . . . . . . . . . . . . . . . .. . 6

6.4 Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Section 7. Field Insulation of Gages with Transmitters

Page

7.0 Field Insulation

. . 7

7.1 Insulation Jacket Warning Label

. . 7

Section 8. Warranty and HART Protocol Option

Page

8.0 Standard ISE/MagTech Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 8.1 HART protocol Option Information . . . . . . . . . . . . . . . . . . . . . . . .. . . . 8-18

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Contents LTM-300 Series Magnetostrictive Level Transmitter Table of Contents Gage Mounted Transmitter Transmitter Overview General DescriptionLevel Transmitter Standalone TransmitterTheory of Operation LTM-300 is an assembly of two major componentsInstrument Description Transmitter Detailed Description All LTM-300 Units have Hart as a standardInstallation and Wiring Strap-On Transmitter Installation Standalone Transmitter InstallationSpecifications Calibration LTM-300 Output ConfigurationsLower Range Value Upper Range Value LCD Menus For The LTM-300 DisplaysRange Change Sensor CalibrationGage and Transmitter Installation Magnetic InterfaceField Insulation of Gages With Transmitters Warranty and Hart ProtocolBuyer’s expense. Consult MagTech for field service rates Insulation Warning Label SuppliedDiagnostics and Service Hart Protocol Option InformationPage Page To have the current output set to 20.000mA Output Current DAC CalibrationTo have the current output set to 4.000mA Zero Level Trim Full Level TrimZero Temperature Trim Full Temperature Trim Basic Setup Procedures Setting the Measurement Value for 4mA and 20mA by KeypadPage Detailed Setup Selections User must press F3 to send Level Offset to the LTM300 Select Probe Length to view or edit