Constant Temperature Viscosity Bath

Constant Temperature Viscosity Bath

Constant Temperature Viscosity Bath is designed for capillary viscometers but also for general laboratory work that requires precise temperature control. This constant temperature bath is specifically engineered for laboratory viscosity measurements, a stable and uniform temperature environment is essential for accurate testing. It can also be used with Zeitfuchs Cross-Arm Viscometers and Asphalt Institute Vacuum Viscometers such as viscosity baths, and Saybolt Viscometer.

The Viscosity Bath meets ASTM D445 requirements with selectable temperature presets and variable control options. A stainless steel encased thermistor in the Bath senses temperature. The 12x12in (305x305mm) Pyrex bath jar is lit by fluorescent lamps and viscometers are easily read against the white background. Bath Covers have seven 2in (51mm) diameter holes for viscometers and two 3/8in (10mm) holes for ASTM thermometers. The circuitry is in the base platform drawer on ball-bearing glides for easy access.

The temperature range is 20°–100°C and control is proportional to ±0.01°C. Users can set the temperature at any point within their ranges and make adjustments within hundredths of a degree. The 900-Watt unit uses a motor-driven stirrer, two heating elements and advanced over-temperature protection standards. A second thermistor provides fault protection for over-temperature conditions. The unit shuts off until the user resets the limit circuit, if the control thermistor is disconnected, or if the liquid falls below the safe operating level.

Features:

• Optimal for use with capillary viscometers but adapts to lab applications

• Compliant with ASTM D445 requirements and features selectable presets or variable temperature control options

• Advanced over-temperature protection and safety-guard features are provided and will shut the unit off when hazards occur

Accessories:

• Neoprene Viscometer Holder is required to secure the Asphalt Institute Vacuum Viscometers.

• Plastic Viscometer Holder is required to secure the Zeitfuchs Cross-Arm Viscometers.

• Drawer Unit for Viscosity Bath fits under storing viscometers and accessories

• ASTM 9C Pensky-Martens & Tag Closed High Use Mercury Thermometer, -5°-110°C has 0.5°C divisions

• High Temp Fluid, 5 Gallons recommended when testing to 100°C (212°F)Uses 12x12in (305x305mm), DxH

• Pyrex jars for easy visibility.

Electrical: 120V, 50/60Hz, 20Amps

Viscosity Measurements

Viscosity measurements are crucial in industries such as petroleum, chemical and pharmaceutical where understanding a fluid’s flow resistance is essential for quality control and research. Viscosity is very dependent, even small changes in bath temperature can result in large variations in results. Therefore precise temperature control is a fundamental requirement for accurate viscosity measurements. Viscosity baths are specifically engineered to maintain a constant temperature environment so the conditions remain stable throughout the testing process. By providing a consistent setting for kinematic viscosity testing these support a wide range of applications from routine quality checks to advanced research and deliver repeatable results.

Components

A viscosity bath is composed of several key components that work together to provide precise temperature control and performance. At the heart is the control unit which houses viscometers and can accommodate multiple samples at the same time. The bath medium (water or a heat transfer fluid) ensures efficient heat transfer to the samples and the integrated cooling coil allows for rapid adjustment and stabilization of the bath temperature over a wide range from ambient to high temps. Constructed from chemical resistant materials such as stainless steel is built for durability and cleaning even when handling aggressive chemicals. The dimensions are designed to fit various viscometer types and sample sizes making it versatile for different laboratory needs. High stability often within ±0.05°C is a hallmark of good viscosity baths so every measurement is accurate and repeatable.

Maintenance and Operation at Controlled Bath Temperature

Proper maintenance and operation is crucial to get accurate and repeatable measurements. Regular cleaning and its components prevents contamination and extends the life of the equipment. This should be monitored and replaced as needed to maintain good heat transfer and prevent buildup of impurities. The cooling coil should be inspected regularly to ensure good regulation and prevent blockages that can affect performance. It is important to check that the bath temperature is within the specified range as even small deviations can affect measurement accuracy. User friendly controls and clear displays make it perfect to set and monitor and built in safety features like over-protection give you peace of mind during operation. By following the recommended maintenance procedures as intended you will get precise and repeatable results for all your measurement needs.