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Sartorius Research RC 250 S User Manual

Sartorius Research RC 250 S
44 pages
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WMC5003–e96071
Sartorius
Micro, Research
Service Manual
MC - * and RC - Balances
* not MC 5
Sartorius AG, Weighing Technology
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Sartorius Research RC 250 S Specifications

General IconGeneral
Capacity250 g
Readability0.1 mg
DisplayLCD
Repeatability0.1 mg
Linearity±0.2 mg
Operating Temperature+10°C to +30°C
Pan Size80 mm
CalibrationExternal
Power SupplyAC Adapter
InterfaceRS-232
Relative HumidityUp to 80% non-condensing

Summary

Sartorius Micro Research Service Manual

General Information

Service Prerequisites

Prerequisites for working on Sartorius high-resolution balances, including experience and tools.

Warning

Warning regarding unsuitable measuring and test equipment.

Balance Operating Menu and Code Setting

Accessing the Balance Operating Menu and Setting a Menu Code

Steps to access the balance operating menu and set a menu access code.

Metrological Specification Checks

Test Weights

Guidelines for using calibrated weights for span testing and traceability.

Standard Operating Procedure for Testing

Checking the Reproducibility (Standard Deviation)

Procedure to check balance reproducibility using test weights and calculating standard deviation.

Calculating the Standard Deviation

Formula and method for calculating standard deviation from weighing results.

Checking the Off-center Loading Tolerances

Procedure to test off-center loading tolerances using specified weights.

Internal Span Adjustment

Checking the Internal Span Adjustment

Procedure for checking internal span adjustment using calibrated weights.

Checking Linearity

Adjustment

Adjustment Sequence

Order of adjustments: reproducibility, off-center load, linearity, span.

Preparing the Balance for Adjustment

Steps to prepare the balance for adjustment, including service prerequisites and BPI mode.

Adjusting Off-Center Load

3-Point Adjustment (Coarse)

Procedure for coarse adjustment of off-center load using 3 points.

5-Point Adjustment (Fine)

Procedure for fine adjustment of off-center load using 5 points.

Linearity Adjustments

Checking the Linearity:

Reference to the linearity check procedure on page 12.

External Linearity Adjustment

Methods for external linearity adjustment using service programs.

Internal Linearity Adjustment

Procedure for internal linearity adjustment using balance menu codes.

External Linearity Adjustment (only MC-Balances)

Specific procedure for external linearity adjustment on MC-balances.

External Span Adjustment

External Span Adjustment

Procedure for external span adjustment when internal adjustment weight is out of tolerance.

Overwriting Internal Linearity Weight

Overwrite Internal Linearity Weight via Menu

Procedure to overwrite internal linearity weights using balance menu codes.

Overwriting Internal Adjustment Weight

External Adjustment Requirement

External adjustment must be performed before overwriting internal adjustment weight.

Overwrite Internal Adjustment Weight via Menu

Procedure to overwrite internal adjustment weights using balance menu codes.

Internal Adjustment

Internal Adjustment via Menu

Procedure for internal adjustment using balance menu codes.

Exchanging the Draft Shield

Repairing the Electronics

Exchanging the Display PCB

Procedure for exchanging the display PCB module.

Exchanging the Digital PCB

Procedure for exchanging the digital PCB, including data transfer.

Exchanging the Analog PCB

Procedure for exchanging the analog PCB, including resistor transfer and data EEPROM update.

Troubleshooting Guide

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