ABB LWT300 Series User Manual

Also see for LWT300 series: User guide Quick start guide Quick start guide Quick start guide

Contents

Table Of Contents
Table Of Contents
Definitions
Personnel
Grounding
Environmental (WEEE)
Modbus protocol disclaimer
About this guide
First look
The coupler
Basic installation procedure
Disclaimers
Safety first
Environmental considerations
Vessel considerations
Gathering necessary tools
Assembling a segmented probe
Attaching a probe to the coupler
Installing the LWT instrument
Rotating the HMI
Installing a remote head LWT instrument
Grounding the instrument
Connecting the instrument
Upon startup
Introducing LWT user interfaces
Accessing menus
5 Configuring the instrument at startup
Configuring the display
Configuring Operator
Selecting an Operator page to display
Protecting access to instrument data
Disabling access to the Service account
Setting dynamic variables
Configuring the sensor
media
Resetting echo tracking
Changing probe length
Setting bypass/sw pipe diameter
Setting data filtering parameters
Setting up a damping period
Managing lost echoes
Accessing the linearization function
Generating a linearization table automatically
Saving the linearization table
Managing device setups
Configuring the LWT300 with a computer
7 Setting calibration parameters
Changing the empty/zero value
Changing the full/span value
Toggling communication modes
Toggling via hardware
Configuring Modbus communication
Setting the swap mode
Diagnosing problems
Browsing the diagnostics history
Event codes and recommendations
Masking classes of events
Diagnosing from a waveform
Accessing the waveform display
Performing simulations and tests
Electronics temperature
Accessing device information
B Modbus registers
Input registers
factors
D Dielectric constants chart
E PT100 temperature sensors

ABB LWT300 Series User Manual Manual pdf 79 page image

Maintenance and troubleshooting 75Browsing the diagnostics historyTo browse through the diagnostics history:1 From the Diagnostics menu, select Diagnostic History.—Figure 53 The Diagnostic menuThe last event message appears. To browse through all event messages, press the Up and Downarrow keys.—Figure 54 The Diagnostic History screenAlarm group/categoryAlarm codeAlarm descriptionNumber of times that thealarm has been activatedTime elapsed sincealarm was last activatedTotal time that thealarm has been activeNAMURClassificationicon2 Once you are done browsing, press Back.Clearing the diagnostic historyTo clear all diagnostic messages kept in the history:1 From the Diagnostics menu, select Clear History.2 Press OK. All event messages kept in the diagnostic history are erased.

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ABB LWT300 Series User Manual

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