SOP for Operation of Analytical Balance (PRECISA XB 220 A)

Objective

The purpose of this SOP is to provide written procedure for operation of analytical balance.

Scope

These SOP covers operations of Analytical Balance, Make- Precisa, Model-XB220A.

Responsibility

QC Officer (Analyst): Responsible for operation, daily calibration and maintenance of the balance as per procedure.

QA Officer/QA Manager: Review the records and governing the document.

Procedure

Ensure that the instrument is visibly clean and free from dust.

Setting and storing the configuration:

• Press << ON/OFF >> to switch on the balance.
• Continue to hold down the << MODE >> and the << T >> button during the start up process, until the desired configuration appears on the display and then release the button. Select Store configuration as user configuration.

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Working with the configuration menu:

• Press << ON/OFF >> to switch on the balance.
• Continue to hold down the << MODE >> button during the start up process, until the desired configuration appears on the display and then release the button. Set configuration as below.

1. Language
2. Unit - 1
3. Set Data Print 
4. Set calibration 
5. Set Weighing Mode 
6. Set Interface 
7. Set Date and Time 
8. Password 
9. Theft code

1. Language

Switch on the balance and depress << MODE >> until the currently activated language is shown. Release << MODE >> Press << MODE >> repeatedly until the language require is shown. Press << PRINT >> in order to confirm the selection. Press << PRINT >> in order to quit the menu.

2. Weight Unit

Switch on the balance and depress << MODE >> until the currently activated language is shown. Release << MODE >>. Press << MODE >> repeatedly until the Weight unit is shown. Press << PRINT >> in order to confirm the selection. Press << PRINT >> in order to quit the menu.

3. Print Function

Switch on the balance and depress << MODE >> until the currently activated language is shown. Release << MODE >>. Press << MODE >> repeatedly until the Set Data Print is shown. Set the require Parameters i.e. Auto Start ON/OFF, Mode, Time Base, Set Print Format etc. Press << PRINT >> in order to confirm the selection. Press << PRINT >> in order to quit the menu.

4. Calibration Function

Switch on the balance and depress << MODE >> until the currently activated language is shown. Release << MODE >>. Press << MODE >> repeatedly until the Set Calibration is shown. Set the require parameters. Press << PRINT >> in order to confirm the selection. Press << PRINT >> in order to quit the menu.

• Set all the configuration parameter by Switching on the balance and depressing << MODE >> until the currently activated language is shown. Release << MODE >>. Press << MODE >> repeatedly until the require parameter is shown. Set the require parameters. Press << PRINT >> in order to confirm the selection. Press << PRINT >> in order to quit the menu.

Setting and storing the application menu:

• Press << ON/OFF >> to switch on the balance.
• After the start-up process has finished, press the << MODE >> button, until the “SET APP. …” appears on the display. Set the require parameters i.e. Units, Count, Percent Balancing etc. Press << PRINT >> in order to confirm the selection. Press << PRINT >> in order to quit the menu.
• Press << MODE >> Button, until the “SET APPLICATION” appears on the display. Set the require parameters of selected under “Application”.
• Press << MODE >> Button, until the “AUTO-START ON/OFF” appears on the display.

The selected working program can, if required, be loaded automatically every time the balance is switched on.

Precaution

• The balance may only be used with the power adaptor.
• During weighing close the door properly.
• After weighing clean the pan with hairbrush.
• Take care when weighing liquid is split into the inside of the balance or into connections on the rear of the equipment or the power adaptor.

Annexure

Annexure– 1 - Balance Usage log book.

Revision History

Nil

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