Electronic Analytical Weighing Balance Operational SOP



1.0  OBJECTIVE:
To lay down the operating procedure of Electronic Analytical Weighing Balance.
2.0  SCOPE:
This shall be applicable to the Electronic Analytical Weighing Balance TE 214S Sartorius of Quality Control Instrument Laboratory.
3.0  RESPONSIBILITY:
3.1  Technical Assistant/ Helper.
3.2  Q.C Analyst.
4.0  ACCOUNTABILITY:
4.1  Manager-Quality Control.
5.0  MATERIAL AND EQUIPMENT:
5.1  Electronic Analytical Weighing Balance TE 214S Sartorius.
5.2  Sample.
6.0  PROCEDURE:
6.1  Operation:
6.1.1        Make sure that balance/scale is already properly set up.
6.1.2        Adjust the level of balance.
6.1.3        Put the power plug in the socket and switch it “ON”.
6.1.4        Turn on the Balance/Scale: Press.
6.1.5        And confirm it is in “ON” position by observing on displaying screen.
6.1.6        To change configurations see Annexure-2.
6.1.7        To Tare the balance/Scale: Press Tare.  Screen will show 0.0 g.
6.1.8        Before performing weighing assures that, balance is calibrated.
6.1.9        Open the door from one side and place paper on balance/scale.
6.1.10    Close the door and tare the balances/scale: Press Tare.
6.1.11    Open the door and place the sample on paper.
6.1.12    Again close the door and let the screen display stable.
6.1.13    Note the weight from the displaying screen and remove the sample from the balance/scale with paper.  
6.1.14    Close the door & Press Tare
6.2  Precautions:
6.2.1     Install the balance on a vibration free place.
6.2.2     Check all the circuits before use.
6.2.3     If during or before weighing power supply fails, then recalibrate the balance.
6.2.4     Do not blow air into the chamber under any circumstances.
6.2.5     Never press or touch the weighing pan during weighing.
6.2.6     Always close or open the balance doors gently.
7.0  REVISION LOG:
Revision No.
Effective Date
Reason
00

New SOP

8.0  REFERENCES:
8.1  Not Applicable.
9.0  ANNEXURES:
Annexure 1: Overview of Display and Operating Elements
Annexure 2: Configuring the Balance/Scale






Annexure: 1
OVERVIEW OF DISPLAY AND OPERATING ELEMENTS
Overview of Display and Operating Elements

Position designation:
1.            Weight Units.
2.            Calculated Value indicator (i.e., not a weight value)
3.            Taring.
4.            Symbol: “Printing mode active”.
5.            Symbol:  “Gross or Net Value”.
6.            Data output: Press this key to send readout value to the built-in data interface
7.            Start an application program.
8.            Delete (Clear Function).
This Key is generally used to cancel functions:
·            Quit application program.
·            Cancel calibration/adjustment routine│ Exit the operating Menu.
9.            On/off.
10.        Symbols for zero range (verified models only).
11.        Weight value displayed in selected weight units.






Annexure: 2
CONFIGURING THE BALANCE/SCALE
Configuring the Balance/Scale
Step
Key (or instruction)
Display
1.  Turn off the balance/scale
        

2.  Turn the balance/scale back on; while all segments are displayed.
o  To Navigate within a menu level; the last menu option is followed by the first option.

Tare  Briefly
Tare  Repeatedly
1.
2.
:
9.
1.
3.  Select the 2nd menu level

1.   1. 
4.  Select the 2nd menu level

1.    1. 2 0
5. In Menu Level 3:
    Select the desired option
Tare  Repeatedly
1.    1. 4
6. Confirmed new setting ;
    the “o” indicates the currently
    set option
o  Select the next menu level (here move from the 3rd to the 1st level)
o  Set other menu code, if desired


         >2 Sec

         , Tare


1.    1. 4 0
7. Store parameter setting and exit
    operating menu  or
o  Exit operating menu without
Storing changes
        >2 Sec



> Restart application

0.0  g




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