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Sartorius MW1P User Manual

Sartorius MW1P
52 pages
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WMI5005-e07113
Service Manual
Sartorius Midrics Series
Models MW1P | MW2P | MW1S | MW2S
for Complete Midrics Scales
Models MIS1 | MIS2
for Midrics Indicators
and
Models MAPP1 | MAPS1
MAPP4 | MAPS4
for Midrics Weighing Platforms
including Service Specifications

Table of Contents

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Sartorius MW1P Specifications

General IconGeneral
BrandSartorius
ModelMW1P
CategoryScales
LanguageEnglish

Summary

Overview of Sartorius Midrics Scales

General Information and Service Concept

General information about the service manual, scale operation, and safety measures for indicator maintenance.

Overview of Models and Tools

Description of Sartorius Midrics scale configurations and required auxiliary service tools.

Accompanying Literature

List of related operating instructions and documentation for Sartorius Midrics series.

Description of the Equipment

Midrics Indicator Components

Details on the front panel, keypad, display, and interfaces of Midrics 1/2 indicators.

Indicator Printed Circuit Boards

Information on the Main PCB and Power PCB within the Midrics indicators.

Function of the Menu Access Switch

Explanation of the menu access switch's function and its effect on A/D converter configuration.

Repairing the Midrics Indicator

Indicator Safety Precautions

Important safety note regarding the use of an isolating transformer before opening the indicator housing.

Replacing the Front Panel and Seal

Procedure for replacing a defective front panel, including seal replacement.

Troubleshooting Blank Display and Power Cable Replacement

Steps to diagnose a blank display and replace the power cable, including cable gland tightening.

Replacing the Power PCB

Instructions for removing the protective cap and replacing the power PCB.

Points of Measurement for Supply Voltages

Identifying measurement points for supply voltages from the DC/DC converter.

Replacing the Main PCB and A/D Converter Quick-test

Procedure for replacing the main PCB and performing a quick test of the A/D converter.

Terminal Assignments in Midrics Indicators

Detailed pin assignments for various COM1 and UniCOM interface variants.

Interface Descriptions

RS-232 and RS-485 Interface Settings

Information on RS-232 and RS-485 interfaces, including pin assignments and switch settings.

Analog Interface Configuration Options

Details on switch settings for configuring the analog interface (4-20mA, 0-10V, etc.).

Digital I/O Interface and COM1 Configuration

Description of digital I/O interface and COM1 requirements for software loading.

Adjusting the Weighing Platform

Weighing Platform Junction Box Overview

Illustration and identification of load cells and junction box on a weighing platform.

Junction Box 1 Wiring and Pin Assignments

Open view of Junction Box 1, showing connections for load cells and the connecting cable.

Junction Box 2 Wiring Details

Open view of Junction Box 2, showing connections for load cells and the connecting cable.

Load Cell Cable Connections and Color Codes

Wiring diagrams for load cells to Junction Box 2 and color coding for cables.

Off-center Load Adjustment Procedure

Step-by-step guide for adjusting the off-center load using the junction box.

Adjusting Off-center Load with Resistors

Method for adjusting off-center load in 4-load cell platforms by soldering resistors.

Setting the Overload Stops

Specifications for test weights used to set overload stops for steel weighing platforms.

Load Cell Color Assignments by Manufacturer

Color assignments for load cell connections from different manufacturers like Sartorius, Combics, and TEDEA.

Determining Resistance Values for Adjustment

Procedure for determining resistance values for off-center load adjustment using a specific equation.

Sample Calculation for Resistor Value

Example calculation for determining the required resistor value for off-center load adjustment.

Available E24 Series Resistors

List of available resistors in the E24 Series with their part numbers and values.

Selecting the Adjustment Resistor Based on Off-center Load

Table correlating adjustment resistor values with off-center load ranges for different test weights.

Diagram 1: Off-center Load with 350 Ohms Initial Resistance

Graphical representation of adjustment resistor vs. off-center load for 350 Ohms initial resistance.

Diagram 2: Off-center Load with 1000 Ohms Initial Resistance

Graphical representation of adjustment resistor vs. off-center load for 1000 Ohms initial resistance.

Service Specifications

Service Specifications for MW/MAP-L Models

Detailed service specifications including capacity, readability, and tolerances for MW/MAP-L models.

Service Specifications for MW/MAP-LCE Models

Detailed service specifications including capacity, readability, and tolerances for MW/MAP-LCE models.

Service Specifications for MW/MAP-NCE Models (Part 1)

Service specifications for MW/MAP-NCE models up to 60kg capacity.

Service Specifications for MW/MAP-NCE Models (Part 2)

Service specifications for MW/MAP-NCE models from 150kg up to 3000kg capacity.

Error Codes

Error Codes Err 101-104, Err 320-343

Table listing error codes related to keys, program memory, and platform compatibility.

Error Codes InF 07-73

Table listing error codes related to scale functions, load limits, and data storage.

Error Codes InF 74-99 and no1P

Table listing error codes for blocked functions, missing weighing platforms, and no connection.

Service Mode and Configuration

Activating the Service Mode

Step-by-step guide to activate the service mode using the setup and code menu items.

Saving Service Password and Navigation

Instructions on saving the service password and navigating within the service mode menus.

Configuring the A/D Converter

Procedure for configuring the A/D converter, including selecting standard or verifiable configurations.

Saving A/D Converter Configuration

Steps to save the A/D converter configuration and perform post-configuration adjustments.

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