Optima Instruments

Pricise and accurate tabletop Auto pH meter with automatic temperature compensation.

1. Sample Preparation: A weighed sample is placed in a small crucible inside the bomb.
2. Oxygen Filling: The bomb is pressurized with pure oxygen.
3. Ignition: The sample is ignited electrically.
4. Heat Absorption: The heat released by combustion raises the temperature of the bomb, its contents, and the surrounding water.
5. Temperature Measurement: A thermometer measures the temperature change of the water.
6. Heat Calculation: The temperature change, along with a bomb factor, is used to calculate the heat of combustion. 

• Constant Volume: The reaction occurs in a closed, sealed system, ensuring constant volume. 
• Pressurized Oxygen: The oxygen provides a controlled environment for combustion. 
• Water Jacket: The bomb is surrounded by water to absorb the heat released during combustion. 
• Precise Temperature Measurement: The temperature change is accurately measured using a thermometer.
• Applications:Bomb calorimeters are used to determine the calorific value of fuels, analyze coal, explosives, cement, and other materials. 

1. Sample Preparation: A weighed sample is placed in a small crucible inside the bomb.
2. Oxygen Filling: The bomb is pressurized with pure oxygen.
3. Ignition: The sample is ignited electrically.
4. Heat Absorption: The heat released by combustion raises the temperature of the bomb, its contents, and the surrounding water.
5. Temperature Measurement: A thermometer measures the temperature change of the water.
6. Heat Calculation: The temperature change, along with a bomb factor, is used to calculate the heat of combustion. 

• Constant Volume: The reaction occurs in a closed, sealed system, ensuring constant volume. 
• Pressurized Oxygen: The oxygen provides a controlled environment for combustion. 
• Water Jacket: The bomb is surrounded by water to absorb the heat released during combustion. 
• Precise Temperature Measurement: The temperature change is accurately measured using a thermometer. 
• Insulating Container: The calorimeter is insulated to minimize heat loss to the surroundings. 

• Complete Absolute Viscosity Testing Equipment conforming to IS: 1206 (Part II) Method for Testing Tar and Bitumen Materials: Determination of Absolute Viscosity with the following components
• Constant Temperature Bath: A suitable bath for immersion of at least 2 vacuum capillary viscometer tubes with a digital temperature controller. The accuracy of the temperature in the bath will be ± 0.1°C throughout the bath.
• Vacuum System: Capable of maintaining a vacuum within ± 0.05 cm of the desired level The system will consist of vacuum pump, moisture trap, vacuum regulator, bleed valve, all interconnecting tubing/ piping, and any other accessory as needed to complete the vacuum system.
• Thermometer for Bath: Mercury in glass, range 37.8 to 82°C, and graduations of 0.2°C.
• Timing Device: A stop watch or stop clock capable of reading up to ½ second.
• Cannon-Manning Vacuum Viscometers: With manufacturers' calibration certificate, viscometer holder and silicone cork. Size 12 and Size 13 (one each) [Size 12 is suitable for testing VG-10 and Size 13 is suitable for testing VG-20, VG-30, and VG-40 bitumen.

• Supreme Strength
• Thrifty prices
• Superior quality

• Used to maintain in water the Marshal specimens to be tested at 600 10 (Asphalt specimens) or 37.80 (Tar Specimens) as prescribed by the specifications.
• The Same Water bath can also be used for Penetration test, Stripping test or even soundness test of cement with the use of additional accessories. Available in different sizes and temperature control system.

• Temperature range from ambient to 100^oC and temperature controlled by digital temp. Indicator cum controller with an accuracy of + 0.5^oC.
• A high speed stirrer with a motor of 1/20 HP is fitted to the unit for continuous stirring and this can maintain a uniform heating throughout the chamber.
• The heating mechanism comprises of set of heaters pertaining to fast heating to operate 230 volts AC only.

• The apparatus is available in two versions, hand operated and electrically operated with automatic timer. The apparatus consist of a cast aluminum base with an iron stand on which moves an aluminum arm. A 6” dial is fixed on this arm and a brass chromium plated rod slide through the lower portion of the arm. A needle with weight is fitted to this rod. The dial is graduated from 0-400 in one tenth millimeter sub division. Supplied complete with adjustable needle holder, penetration needle
• Sample container, transfer dish and weight of 50 gm.
• The automatic model is supplied with automatic digital timer and electrical arrangement to carryout the test without need of stop watch and with great ease and accuracy.
• Constant temperature water bath EIE 403/ 406.
• Glass thermometer,
• Electric hot plate.
• Enamel tray.
• Stop watch mechanical/ digital.
• Spare penetration needle.