Standard Operating Procedure – Muffle Furnace

SCOPE/PURPOSE:

To provide a procedure for the operation of Muffle furnace.

RESPONSIBILITY: 

Chemist-QC

ACCOUNTABILITY:

Manager-QC

PROCEDURE: 

CLEANING PROCEDURE

• Check that the power supply to the instrument is switched “OFF”.
• Ensure that the Muffle Furnace is not in hot condition or in operation while cleaning.
• Clean the instrument externally with clean dry cloth.

OPERATING PROCEDURE

• Ensure that the instrument is connected to the power supply.
• Switch “ON” the main power supply, glowing of red light at mains indicates the power supply
• Switch on the instrument by ON position which leads to activation of green control bulb and the temperature controller.
• Set the temperature required by pressing and holding the red ‘PRESS TO SET button and rotate the adjusting screw to set the required temperature and release the push button.
• The digital display shows the actual temperature of furnace and the red light of the temperature controller glows.
• When the temperature reaches the setting point, the red light of the temperature controller automatically switched “OFF” and the green light will glow. The equipment is now ready for operation.
• If any discrepancy is observed during operation, inform the maintenance department for rectification.

PRECAUTIONS:

• Do not give a shock to the Muffle furnace. Do not connect anything other than the specified equipment to the connector on the rear side of the Muffle furnace.
• Never heat any flammable material or combustible materials inside the Muffle furnace. 
• Use thermal gloves or tongs to remove work piece in the Muffle furnace.