• LKV3000 Refrigerated Kinematic Viscosity Bath

LKV3000 Refrigerated Kinematic Viscosity Bath



Kinematic viscosity is of primary importance in the design and selection of a wide range of petroleum products. Calibrated capillary viscometers are used to measure flow under gravity or vacuum at precisely controlled temperatures.

  • Improved design with enhanced performance and safety features
  • Temperature range from 15 °C to -30 °C ( 59 °F to -22 °F)
  • 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

Refrigerated constant temperature bath with improvements in operating features, safety and cabinetry. Advanced temperature control circuitry includesmicroprocessor PID design and two decimal calibration offset. Simple pushbutton controls and dual digital displays permit easy setting and monitoring of bath temperature. Bath accommodates four glass capillary viscometers using 2" (51mm) round holders (rectangular ports are available on special order). Bath medium is contained in a clear, evacuated Dewar flask, and glare-free fluorescent backlighting provides excellent visibility when working with the viscometers. 


The LKV3000 model operates at temperatures from ambient to -30 °C (-22 °F), exceeding ASTM temperature control accuracy and uniformity requirements throughout the operating range. Air-cooled hermetic compressors provide efficient operation with the use of CFC-free refrigerants. 


Insulated steel cabinet has an attractive polyester-epoxy finish and is mounted on adjustable leveling feet. Chemical resistant working (top) surface has four round ports for 2" (51mm) viscometer holders and one port for a thermometer holder. Front viewing window provides clear, distortion-free visibility. Microprocessor controller incorporates circuitry that interrupts power to the heater in the event of an overtemperature condition or disconnection of the primary probe. A redundant adjustable controller and sensor probe provide added overtemperature protection, and an integrated low liquid level sensor cuts power to the heaters if the bath liquid is not filled to the proper level or falls below during operation. Both overtemperature and low liquid level circuits will latch and prevent further operation of the bath until the fault is removed.

  • Port Cover, Delrin® (4)
  • Thermometer Holder

Conforms to the specifications of: 

ASTM D445, D2170, D6074, D6158; IP 71, 319; ISO 3104; DIN 51550; FTM 791-305; NF T 60-100

Testing Capacity: Four (4) glass capillary viscometers

Viscometer Ports: Four (4) round 2" (51 mm) ports

Bath Dimensions: 9 ½" dia. x 12" depth (24 cm dia. x 30 cm)

Bath Capacity: 3.7 gal (14 L)

Temperature Control:  Display: 0.1 °C / 0.1 °F resolution, calibrate to 0.01 °C / 0.01 °F

Control accuracy and uniformity: Exceeds ASTM requirements throughout the operating range

115V 60Hz, Single Phase, 20.1A

220-240V 50Hz, Single Phase, 10.6A

lxwxh,in.(cm): 42 x 35 x 36 (107x89x91)

Net Weight: 176 lbs (80kg)

Shipping Weight: 387 lbs  (175.54 kg)  

Dimensions: 41x35x38 in. (114.14x88.9x96.52 cm) 

  • 378-025-C01 thru 378-700-C01 Cannon®-Fenske Viscometer Tubes, Size 25 thru 700 
  • 378-025-C02 thru 378-700-C02 Cannon®-Fenske Opaque Reverse Flow Viscometer Tubes, Size 25 thru 700
  • 378-000-C03 thru 378-005-C03 Ubbelohde Viscometer Tubes, Size 0 thru 5 
  • K23700-SFW-A Kinematic Viscosity Software                                                               
  • K22090 Withdrawal Bulb
  • K23311 Rubber Stopper for Viscometer Tube, pk/12
  • K23350 Universal Viscometer Holder, Rectangle
  • K23351 Universal Viscometer Holder, Round
  • K23363 Modified Koppers Viscometer Holder, Round
  • K23381 Cannon-Fenske Routine Viscometer Holder, Round
  • K23382 Ubbelohde Viscometer Holder, Round
  • K23383 Cross-Arm Viscometer Holder, Round
  • K23384 Cannon-Ubbelohde Semi-Micro Viscometer Holder, Round
  • K23387 BS/IP/RF U-Tube Viscometer Holder, Round
  • 355-001-001 White Mineral Oil, 1 Gallon 
  • 355-001-003 White Mineral Oil, 5 Gallon 
  • 250-000-120C ASTM 120C Thermometer, 40 °C Test Temperature 
  • 250-000-121C ASTM 121C Thermometer, 100 °C Test Temperature