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LAUMAS WLIGHT User Manual

LAUMAS WLIGHT
50 pages
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Installation and User Manual
version 1.00
WLIGHT
2014/30/EU
EN55022:2010 EN61000-6-2:2005 EN61000-6-4:2007
SYSTEM IDENTIFICATION
Load Cell Systems reserves the right to change specifications without notice. ©2019
Web: https://loadcellsys.com
Email: sales@loadcellsys.com
Phone: 607-426-1467

Table of Contents

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LAUMAS WLIGHT Specifications

General IconGeneral
CategoryAccessories
TypeWeight indicator
Power supply12-24 V DC
HousingABS
Protection degreeIP65
DisplayLED
Digit height14 mm
Serial portsRS232/RS485
Operating temperature-10..+40 °C
Storage Temperature-20 to +70 °C

Summary

Key to Symbols and Safety Information

Symbol Explanations

Provides explanations for warning symbols and reading instructions.

Guarantee and Disposal Information

User Warnings and Recommendations

Proper Use and Handling

Guidelines for operating the weighing instrument safely and correctly, including installation advice.

Load Cell Installation Recommendations

Advice on installing load cells, including cable management and structure stability.

Load Cell Installation Details

Mounting and Structural Integrity

Ensures proper placement, alignment, and stability for load cells on rigid structures.

Wiring, Protection, and Restraints

Covers cell cable connection, protection against water, and mechanical restraints for pipes.

Environmental and Welding Considerations

Addresses vibration, wind, and welding procedures near load cells to prevent damage.

Load Cell Testing Procedures

Input Test and Millivolt Measurement

Checks load cell response signal in mV, confirming basic functionality.

Resistance and Voltage Measurements

Guides on using multimeters for load cell electrical checks: input resistance, insulation, and voltage.

Instrument Specifications

Main Features and Display

Details on instrument dimensions, display type, keyboard, signaling LEDs, and protection rating.

Connectivity and Power Supply

Information on RS232 port, supported protocols, and power supply requirements.

Buffer Battery Operation

Technical Specifications

Electrical and Measurement Parameters

Covers power, load cells, linearity, thermal drift, AD converter, max divisions, and display range.

Environmental and Communication Limits

Specifies operating temperature, humidity, baud rates, and serial port capabilities.

Electrical Connections

Load Cell Connection Basics

Information on connecting load cells, supported counts, and 4-wire configurations.

Connector Pinouts

Details pin assignments for power supply, load cell (D1 Female), and RS232 serial port (D4 Male).

Keys and LED Functions

Keypad Operation Modes

Explains short press, long press, and menu navigation for each key (Tare, Start/Stop, Print, Menu/Enter).

LED Indicator Functions

Describes the meaning of different LED lights (NET, →0+, stability, units) on the instrument.

Menu Map Overview

System Parameters Configuration

Instrument Commissioning

Initial Power-On Sequence

Describes the display sequence upon turning the instrument on, including model and version.

Pre-Calibration Checks

Verifying existing calibration status and load cell connections before proceeding.

Calibration Procedure Guidance

Steps for theoretical and real calibration based on device status and load cell data.

Programming System Parameters

Parameter Entry and Navigation

How to access and modify instrument parameters using MENU/ENTER and ESC keys.

Theoretical Calibration

Full Scale and Sensitivity Settings

Configuring FS-LED (Full Scale) and SEnSi (Sensitivity) parameters for load cell calibration.

Resolution Setting (di UI 5)

Adjusting the display resolution or minimum weight increment (division).

Maximum Capacity Setting

Defining Maximum Displayable Weight (NASS)

Setting the upper limit for weight display before showing overflow indication.

Tare Weight Zero Setting

Zeroing the Empty System

Procedure to set the current weight of the empty system to zero.

Zero Value Manual Entry

Manual Zero Adjustment

Entering an estimated zero value when automatic zeroing is not possible due to product residue.

Real Calibration with Sample Weights

Calibration Process and Verification

Using sample weights to calibrate the instrument and correct displayed values.

Linearisation Option

Performing multi-point linearization for improved accuracy across the weight range.

Filter on the Weight

Stabilizing Weight Display

Adjusting filter values (0-9) to achieve a stable weight reading by reducing fluctuations.

Anti-Peak Filter Configuration

Enabling/Disabling Sudden Disturbance Filtering

Setting the anti-peak filter to remove transient weight spikes up to 1 second.

Zero Parameters Configuration

Resettable Weight Setting (O SEE)

Defining the threshold for resettable weight changes via external contact or protocol.

Automatic Zeroing Features

Configuring power-on zeroing and zero tracking to maintain accuracy.

Setting Units of Measure

Available Measurement Units

Lists and defines the selectable units for weight display (kg, g, lbs, etc.).

Net Functions Configuration

Enabling Tare Functionality

Activating semi-automatic and preset tare operations for net weight calculations.

Semi-Automatic Tare (Net/Gross)

Performing Net Weight Operations

Steps for setting the instrument to display net weight using the TARE key.

Preset Tare (Subtractive Tare Device)

Manual Tare Value Entry

Setting a fixed tare value to subtract from the gross weight manually.

Semi-Automatic Zero for Small Variations

Adjusting for Minor Weight Deviations

Procedure to zero the scale for small weight changes within the O SEE limit.

Peak Functionality

Configuring Peak Weight Monitoring

Enabling and using the peak function via START/STOP to capture maximum weight.

Serial Communication Settings

Communication Port and Protocol Selection

Choosing between RS232, Modbus, or ASCII protocols for data transmission.

Parameter Configuration

Setting baud rate, address, transmission frequency, and other communication parameters.

RS232 Serial Communication

Instrument to PC Connection Diagram

Wiring diagram showing pin assignments for connecting the instrument via RS232 to a PC.

Direct RS485 to RS232 Connection

One-Way Data Transmission Setup

Method for connecting RS485 output to an RS232 input for one-way communication.

Instrument Test Procedures

Millivolt Test Execution

Running the millivolt test to check load cell signals and response.

Battery Operation and Management

Battery Specifications and Charging

Details on NiMH battery type, charging, low battery indication, and operating times.

Energy Saving Settings

Display Power Saving Modes

Configuring the display to enter energy saving mode after inactivity.

Date and Time Setting

Adjusting Instrument Clock

Procedure for setting the internal date and time accurately.

Info Menu Contents

Instrument Identification Details

Accessing model, software, hardware, and serial number information.

Piece Counter Operations

Increasing and Decreasing Count

How to count items added or removed from the scale for inventory or batching.

Displaying Counted Items

Information on how the piece count, average unit weight, and total weight are displayed.

Totalizer Functionality

Selecting Totalizer Mode

Choosing between Base operations, Piece Counter, and Totalizer modes.

Totalization Type Configuration

Setting up fast manual, normal manual, or automatic totalization with hold and stability options.

Totalizer Display and Operation

Total Weight Display Formats

Understanding how total weight is presented in different totalizer modes (E, b, A).

Totalization Notes and Hold Function

Important notes on totalization, clearing data, and blocking weight display.

Instrument Alarms and Error Codes

Instrument Error Messages

Detailed explanations of common alarm codes (ErCEL, Er OL, etc.) and their causes.

Serial Communication Alarms

Error codes specific to communication protocols like Modbus, ASCII, and RIP.

Printing Examples

Standard and Mode-Specific Printouts

Examples of print formats for basic weighing, piece counter, and totalizer modes.

Continuous Fast Weight Transmission Protocol

High-Frequency Data Transmission

Protocol for transmitting weight data at high update rates (up to 300 strings/sec).

Data String Format Details

Structure and content of transmitted data strings for PC/PLC communication.

Continuous Weight Transmission to Remote Displays

Remote Display Communication Protocol

Protocol for sending weight data to compatible remote displays (RIP series).

Remote Display Data String Format

Format of data sent to remote displays, including net/gross, prompts, and error handling.

ASCII Bidirectional Protocol Basics

Protocol Overview and Captions

General information and definitions for ASCII communication, including status and control characters.

Reading Weight or Peak Data

PC commands for retrieving weight and peak values using ASCII strings.

ASCII Protocol for Weight Control

Zeroing and Mode Switching Commands

PC commands for semi-automatic zero and switching between gross/net weight.

Net to Gross Weight Switching Command

PC command to switch the instrument from net to gross weight display.

ASCII Protocol for Tare and Calibration

Tare Zero Setting Command

PC command to perform tare zero setting via ASCII communication.

Real Calibration Command

PC command for performing real calibration with sample weights using ASCII.

ASCII Protocol Check-Sum Calculation

Checksum Calculation Procedure

Method for calculating the checksum for ASCII communication data integrity.

Modbus-RTU Protocol Overview

Protocol Fundamentals

Basics of Modbus-RTU, data format, and supported functions for register management.

Register Management

Explanation of reading and writing programmable registers using Modbus-RTU.

Modbus-RTU Register Operations

Reading Holding Registers

Query and response structure for reading data registers (e.g., Function 3).

Writing Multiple Registers

Query and response structure for writing data registers (e.g., Function 16).

Communication Error Management

Error Detection and Handling

Procedures for CRC checks, exceptional responses, and interpreting error codes.

List of Available Modbus Registers

Register Mapping and Descriptions

Table detailing registers, their descriptions, EEPROM saving, and access types (R/W).

Status Register (40007) Details

Bit-Level Status Definitions

Explanation of each bit's meaning within the status register for system state monitoring.

Divisions and Units of Measure Register (40014)

Setting Divisions and Units

Configuration options for weight divisions and measurement units for display and calculation.

Command Register Commands (40006)

Control Commands List

List of commands for functions like tare, zeroing, keypad locking, and saving data.

Real Calibration Commands

Calibration Data Storage Commands

Commands for saving sample weight and initiating real calibration via the command register.

Communication Examples

Writing Register Data Example

Demonstrates sending multiple register write commands and expected instrument response.

Communication Examples (Reading Data)

Reading Register Data Example

Demonstrates sending multiple register read commands and expected instrument response.

Installer Reserved Functions

Menu Access Control

Procedures for locking, unlocking, and setting passwords for menu access.

Data Operations and Program Selection

Warnings and procedures for data deletion and program selection requiring technical assistance.

Keypad and Display Locking

Lock Options for User Interface

Methods to lock the keypad and/or display for security or accidental input prevention.

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