Viscosity

Digital Constant Kinematic Viscosity Bath

Constant temperature bath for kinematic viscosity testing of petroleum products. Accommodates six round 2” (51mm) dia. viscometer holders. Bath temperature stabilizes within ±0.5°C (±1°F) of setting, and final adjustment to within ±0.01°C (±0.02°F) can be made. Test temperatures of up to 150°C (302°F) can be selected. Temperature limit control permits the operator to select an overtemperature cutoff point to protect against accidental overheating. Control unit includes immersion heater, circulating stirrer and temperature probe. Composition top plate rests on a 12×12” (30.5×30.5cm) or 12×18” (30.5x46cm) Borosilicate Glass jar. Order capillary viscometers, viscometer holders and thermometer separately.

• Accommodates six capillary viscometers

• Variable temperature limit control

• Conforms to ASTM D445 and related specifications

Adv Temp Control Kinematic Viscosity Bath

For the determination of the kinematic viscosity, ν, of liquid petroleum products, both transparent and opaque, by measuring the time for a volume of liquid to flow under gravity through a calibrated glass capillary viscometer. The dynamic viscosity, η, can be obtained by multiplying the kinematic viscosity, ν, by the density, ρ, of the liquid.

Kinematic viscosity is of primary importance in the design and selection of a wide range of petroleum products. Many petroleum products, and some non-petroleum materials, are used as lubricants, and the correct operation of the equipment depends upon the appropriate viscosity of the liquid being used. In addition, the viscosity of many petroleum fuels is important for the estimation of optimum storage, handling, and operational conditions. Thus, the accurate determination of viscosity is essential to many product specifications.

• Conforms to ASTM D445 and related specifications

• Accommodates 7 capillary viscometers

• Stainless Steel Bath Construction

• Dual digital displays show setpoint and actual bath temperature

• Selectable temperature scale – Fahrenheit or Celsius

• Integrated redundant overtemperature and low liquid level cut-off circuitry

Kinematic Constant Temp Viscosity Bath w/Digital Timing

Constant temperature bath series with advanced temperature control circuitry an integrated timing features for convenient, accurate glass capillary viscometry determinations. Microprocessor PID circuitry assures precise, reliable temperature control within ASTM specified tolerances throughout the operating range of the bath. Simple push-button controls and dual digital displays permit easy setting and monitoring of bath temperature. Two place calibration offset capability is provided. Baths accommodate seven glass capillary viscometers of various types. Viewing the viscometers is made easy by glare-free fluorescent illumination inside the bath and a baffle that provides a background for easy viewing. temperature control uniformity is assured by means of motorized stirrer which provides complete circulation without turbulence. Connection of the built-in cooling coil to tap water or a recirculating water chiller facilitates temperature control at ambient or below ambient temperatures. Communications software (RS232, etc.) ramp-to-set, and other enhanced features are available at additional cost.

• Microprocessor temperature control between ambient and 150°C (302°F)

• Integrated digital timing for easy measurement of sample efflux times

• KV4000 permits entry of viscometer constants for automatic calculation and display in viscosity units or seconds

• Dual digital displays show setpoint and actual bath temperature

• Selectable temperature scale – Fahrenheit or Celsius

• Integrated redundant overtemperature and low liquid level cut-off circuitry

• Conforms to ASTM D445, D2170 and related specifications

High Temp Kinematic Viscosity Baths w/Digital Timing

High temperature baths with advanced temperature control circuitry and integrated timing features for convenient, accurate glass capillary viscometry determinations. Microprocessor PID circuitry assures precise, reliable temperature control within ASTM specified tolerances throughout the operating range of the bath. Simple push-button controls and dual digital displays permit easy setting and monitoring of bath temperature. Two place calibration offset capability is provided. Baths accommodate seven glass capillary viscometers of various types. Viewing the viscometers is made easy by glare-free fluorescent illumination inside the bath and a baffle that provides a background for easy viewing. Temperature control uniformity is assured by means of motorized stirrer which provides complete circulation without turbulence. Connection of the built-in cooling coil to tap water or a recirculating water chiller facilitates temperature control at ambient or below ambient temperatures. Communications software (RS232, etc.) ramp-to-set, and other enhanced features are available at additional cost. Contact your Koehler representative for additional information.

• Microprocessor temperature control between ambient and 232°C (450°F)

• Integrated digital timing for convenient measurement of sample efflux times

• HKV4000 model permits entry of viscometer constants for automatic calculation and display in viscosity units or seconds

• Dual digital displays show setpoint and actual bath temperature

• Selectable temperature scale – Fahrenheit or Celsius

• Integrated redundant overtemperature and low liquid level cut-off circuitry

• Conforms to ASTM D445, D2170 and related specifications

Low Temperature Kinematic Viscosity Baths

Refrigerated constant temperature bath series with improvements in operating features, safety and cabinetry. Advanced temperature control circuitry includes microprocessor PID design and two decimal calibration offset. Simple pushbutton controls and dual digital displays permit easy setting and monitoring of bath temperature. Baths accommodate four glass capillary viscometers using 2” (51mm) round holders (rectangular ports are available on special order) – see separate listing on pages 10-13 for complete selection of viscometers and holders. Bath medium is contained in a clear, evacuated Dewar flask, and glare-free fluorescent backlighting provides excellent visibility when working with the viscometers.

• Improved design with enhanced performance and safety features

• Standard –30°C (–22°F) LKV3000 model, and extended range –70°C (–94°F) LKV4000 model

• Microprocessor PID temperature control with two decimal calibration offset

• Dual digital displays show setpoint and actual bath temperature

• Selectable temperature scale – Fahrenheit or Celsius

• Conformity to ASTM D445 and related specifications