Calibration of Viscometer

Calibration of Viscometer

• PROCEDURE :-
• Frequency: Calibrate the instrument quarterly.
• Operate the instrument as per operation of Viscometer SOP.
• Level the instrument using leveling screws provided on the base.
• Turn the power switch located on the rear panel to “ON” position.
• Calibrate using “500“cps Viscosity Standard fluid:
• Use Spindle number “S64”.
• Maintain the temperature of “Viscosity Standard fluid” at 25⁰ C ± 0.1⁰ C, and measure accurately about 16 ml of Viscosity Standard fluid and pour into the sample chamber of UL-ADAPTER.
• Connect the spindle to lower shaft at the viscometer.
• Connect the “Sample Chamber” to the mounting channel.
• Set the RPM to 50 and then press “MOTOR ON/OFF” key. Record the viscosity in cps.
• Repeat the same operation for two times more.
• Acceptance Criteria: ± 5% of Certified Value.
• Calibrate using “100000” cps Viscosity Standard fluid:
• Use spindle number “S64”.
• Maintain the temperature of “Viscosity Standard fluid” at 25⁰ C ± 0.1⁰ C, and measure accurately about 16 ml of Viscosity Standard fluid and pour into the sample chamber of UL-ADAPTER.
• Connect the spindle to lower shaft at the viscometer.
• Connect the “Sample Chamber” to the mounting channel.
• Set the RPM to 1.5 and then press “MOTOR ON/OFF” key. Record the viscosity in cps.
• Repeat the same operation for two times more.
• Acceptance Criteria: ± 5% of Certified Value.
• Calibration Report of Viscometer shall be prepared as per Annexure.
• After the successful completion of calibration. Calibration label shall be affix on the instrument as per SOP.
• If the Calibration parameters are out of limit affix the Out of Calibration label and Inform to QC Head/Designee.
• Activity shall be recorded in the Instrument usage log book.

• ABBREVIATION(s)

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