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General Purpose Viscosity Standards
For Reference, Validation, and Calibration
 
CANNON certified standards are useful for calibration and verification procedures for all types of viscometers, including glass capillary viscometers, rotational viscometers, falling ball viscometers, cup viscometers, and others.

Calibration or verification with a certified viscosity standard helps to ensure the reliability of measurements made with any viscometer.

All CANNON viscosity standards meet the precision specifications of ASTM D 445/446 and ISO 3104/3105, and are traceable to the NIST (National Institute of Standards and Technology).

 
Glass Capillary Viscometers
ASTM D 445, ASTM D 446, ASTM D 2171,ISO 3104, ISO 3105
  
Cannon-Fenske Routine
The Cannon-Fenske Routine viscometer is a rugged and inexpensive viscometer that works well if the liquid to be measured is transparent or translucent. In general, if the meniscus (the curvature at the top of the liquid column) can be readily observed through a column of liquid 3-mm in diameter, the Cannon-Fenske Routine viscometer and other transparent-type viscometers (such as the Zeitfuchs Transparent and BS/U-Tube viscometers) can be used.
 
Ubbelohde
The Ubbelohde viscometer and other suspended level viscometers are also used to measure transparent liquids. Unlike the Cannon-Fenske Routine viscometer, suspended level viscometers possess the same viscometer constant at all temperatures. This property is advantageous when measurements are to be made at a number of different temperatures. CANNON has improved the design of the Ubbelohde viscometer to make a more rugged instrument called the Cannon-Ubbelohde viscometer. Other suspended level viscometers in this catalog include the BS/IP/SL, BS/IP/SL(S), and BS/IP/MSL viscometers.
 
Reverse Flow Viscometers
Special reverse flow viscometers have been designed for testing opaque liquids. Reverse flow viscometers wet the timing section of the viscometer capillary only during the actual measurement. The Cannon-Fenske Opaque, Zeitfuchs Cross-Arm, and BS/IP/RF U-Tube viscometers are all reverse flow types. Reverse flow viscometers must be cleaned, dried, and refilled before a repeat measurement can be made. In contrast, other viscometer types commonly used to measure transparent liquids allow the same sample to be repeatedly drawn up into the capillary, permitting multiple measurements for verification.
 
Small Volume Viscometers
In some situations, such as in a clinical laboratory, the amount of liquid available for measurement is quite small. Several viscometers have been designed which require one milliliter or less of liquid. These are referred to as semi-micro or micro viscometers. The Cannon-Manning Semi-Micro is a U-tube viscometer that has been modified to measure the kinematic viscosity of samples as small as 1.0 mL. The Cannon-Ubbelohde Semi-Micro viscometer is a modification of the standard size Cannon-Ubbelohde viscometer requiring a sample volume of only one milliliter. The Cannon-Manning Semi-Micro Extra Low Change viscometer will permit kinematic viscosity determination with as little as 0.5 milliliters of sample.
 

 

CT-500/518 Constant Temperature Bath

+ Accurate temperature control from 20°C to 100°C
+ Safe/reliable operation

  
The CANNON CT-500/518 baths maintain accurate temperature control of ± 0.01°C within the range of 20°C to 100°C, providing the temperature sensitivity required by ASTM D 445 for kinematic viscosity measurements with glass capillary viscometers. Two electric heating elements inside the bath rapidly heat the medium to any desired temperature within the range. A cooling coil, when connected to tap water or a cooling system, permits operation below or slightly above ambient temperature.

Temperature Selection
A special selector switch on the front panel facilitates rapid setting of ten popular temperatures for kinematic viscosity determinations. Temperatures which may be selected with this switch are 20, 25, 30, 40, 50, 60, 70, 80, 90, and 100°C. After the switch has been set, the bath will equilibrate to within a fraction of one degree of the desired temperature. A fine tuning control then allows temperature adjustment to within ± 0.01°C of the target temperature. By switching to the “variable” setting on the front panel, any temperature within the operating range can be obtained.
 

 
CT-2000 Constant Temperature Bath
+ Microprocessor-Controlled Temperature Regulation to 150°C
+ Built-in Platinum Resistance Thermometer
+ On-Screen Temperature Monitoring
  
The CANNON CT-2000 Constant Temperature Bath maintains the accurate control required by ASTM D 445 for kinematic viscosity measurements. Within the range of 20 to 100°C temperature is controlled to 0.01°C; above 100°C temperature is controlled to 0.03°C.
  
Setting Temperature
A keypad permits microprocessorcontrolled temperature selection to three decimal places at any setting within the operational range of the instrument. Twin electric heating elements inside the bath rapidly heat the medium to any desired temperature within the range. A cooling coil, when connected to tap water or a cooling system, permits operation below or slightly above ambient temperature. The built-in platinum resistance thermometer continuously monitors bath temperature and displays it digitally on a four line by twenty character back-lit liquid-crystal screen. Either Celsius or Fahrenheit display of temperature may be selected. On power-up the CT-2000 performs an automatic self-test of its circuits. The CT-2000 also features RS-232 and RS-485 communication ports which permit data acquisition and networking via an external computer. Several baths may be networked to a single computer.
 

 

CAV 2000 Series Automatic Viscometers
Innovations in Viscosity Measurement
  • Modular Benchtop Unit (Small Footprint)
  • Variable Temperature Selection from 20°C to 100°C
    (150°C with High-Temperature Option)
  • Viscosity Range of 0.5 to 5000 cSt*
  • ASTM D 445 Precision
  • Powerful VISCPRO® forWindows® 98, 2000, NT, and XP® Software
  • CE Marked for Safe, Reliable Performance

 

CCS-2100 Automatic Cold-Cranking Simulator
SAE J300 Test Equipment
  • Cooled by Built-in Solid-State Thermoelectric Modules
  • Improved Precision Over Earlier Models
  • Powerful VISCPRO® for Windows® Software
  • Fully Automatic Operation
  • Extended Range – 900 to 25,000 mPa·s (cP)
  • Needs No Solvent Cleaning

 

PolyVISC® Automatic Viscometer
Instruments for Automated Viscosity
  • Benchtop Unit (Small Footprint)
  • Variable Temperature Selection from 20°C to 100°C
    (135°C with High-Temperature Option)
  • Viscosity Range of 0.3 to 20,000 cSt*
  • ASTM D 445 Precision
  • Powerful VISCPRO® forWindows® 98, 2000, NT, and XP® Software
  • CE Marked for Safe, Reliable Performance
 
for more information : http://www.cannoninstrument.com
 

 

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