KV1000 Digital Constant Temperature Kinematic Viscosity Bath

• Accommodates six capillary viscometers
  • Variable temperature limit control
  • Conforms to ASTM D445 and related specifications

  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 12x12" (30.5x30.5cm) or 12x18" (30.5x46cm) Pyrex™ jar. Order capillary viscometers, viscometer holders and thermometer separately.
  Specifications
  Conforms to the specifications of: ASTM D445, D6074, D6158; IP 71; ISO 3104; DIN 51550; FTM 791-305; NF T 60-100
  Capacity: Six (6) glass capillary viscometers
  Bath Medium: water or white technical oil
  Included Accessories

  Port Covers, stainless steel (6)

KV3000 and KV4000 Constant Temperature Baths with Integrated Digital Timing

• 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
Constant temperature bath series 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 - see pages 10-13 for complete selection. 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.

Integrated Timing Features - KV3000 incorporates seven digital timers on the front control panel for convenient timing and monitoring of the efflux interval
for each viscometer. On KV4000, the user can enter the viscosity constant for each viscometer on the front LCD control/display, and then get the test result in both efflux time and viscosity units automatically after stopping each timer. All timing functions are displayed in 0.01 or 0.1 second resolution and are accurate within 0.01%.

Bath Construction and Safety Features - Bath chamber is a clear Pyrex®vessel enclosed in a polyester-epoxy finished steel housing. Top working surface has seven 2" (51mm) viscometer ports. Front viewing window assures safe, distortion-free viewing. Microprocessor temperature controller incorporates safety circuitry that interrupts power to the heaters in the event of an overtemperature condition or disconnection of the primary probe. For added safety, an adjustable redundant controller with separate sensor probe interrupts power if an overtemperature situation occurs. An integrated low-liquid sensor prevents operation of the bath if the bath liquid is not filled to the proper level, and cuts off power should it fall below during operation.Both overtemperature and low liquid level circuits will latch and prevent further operation of the bath until the fault is removed.

Specifications
Conforms to the specifications of: ASTM D445, D2170, D6074, D6158; IP 71, 319; ISO 3104; DIN 51550;FTM 791-305; NF T 60-100
Temperature Control
Range: ambient to 150°C (302°F); sub-ambient to 10°C with external cooling
Display: 0.1°C/0.1°F resolution, calibrate to .01°C/0.01°F
Control accuracy and uniformity: Exceeds ASTM requirements throughout the operating range
Integrated timing
KV3000: Seven individual start/stop timers with displays to 0.01 seconds, accurate to within 0.01%
KV4000: Integrated LCD microcomputer with start/stop buttons and retention of viscometer tube constants, automatic calculation and display in viscosity units or seconds to 0.1s, within 0.01% accuracy.
Communication: RS232 port included with KV4000 (optional for KV3000)
Viscometer ports: Seven round 2" (51mm) ports
Bath Medium: Water or suitable heat transfer fluid -
Included Accessories
Port covers, Delrin® (7)

LKV3000 and LKV4000 Refrigerated Constant Temperature Baths

• 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
  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.

  Standard and extended range models - Standard LKV3000 model operates at temperatures from ambient to –30°C (–22°F). Extended range LKV4000 model operates at temperatures as low as –70°C (–94°F). Both models exceed 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.

  Bath construction and safety features - 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.

  LKV5000 Refrigerated Constant Temperature Baths with Optical Detection
  Koehler LKV5000 series kinematic viscosity baths with the optical flow detection system provides automatic viscosity measurements of petroleum and petrochemical products. Includes communication and power ports for
  each optical detection assembly, and can utilize up to four optical assemblies.
  Included Accessories
  Four (4) Delrin® viscometer port covers with handles
  Thermometer holder
  Specifications
  Conforms to the specifications of:
  ASTM D445, D2532, D6074, D6158; IP 71; ISO 3104; DIN 51550;
  FTM 791-305; NF T 60-100
  Testing Capacity: Four (4) glass capillary viscometers
  Viscometer Ports: Four (4) round 2" (51mm) ports
  Bath Dimensions: 91⁄2" dia x 12" deep (24x30cm)
  Bath Capacity: 3.7 gal (14L)
  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
  Dimensions lxwxh,in.(cm)
  42x35x36 (107x89x91)

  Net Weight: 176 lbs (80kg)

Viscometer Cleaning and Drying Apparatus

• Six tube capacity
  • For all types of capillary viscometers
  Cleans and dries glass capillary viscometers using solvent and pressurized filtered air. Use for all types of kinematic viscometers. Cleans as many as six tubes at a time. Place tubes on solvent/air jets and open the valve for each jet. Turn selector dial to ‘solvent’ to rinse tubes, and then to ‘air’ to evaporate any remaining solvent. Use adjustable drainage rack to drain excess sample oil from tubes prior to cleaning. Drainage trough connects to a suitable waste container or chemical drain for removal of waste oil and solvent. Built-in air filter removes particles from the air stream. Available solvent tank has tubing with fittings for connection to apparatus.
  Requires pressurized air source (150psi maximum).
  Dimensions: lxwxh,in.(cm) without solvent tank
  16x7x121/2 (40.6x17.8x31.7)
  Net Weight: K34000: 34 lbs (15.4kg)
  K34010: 15 lbs (6.8kg)
  Shipping Information:
  Shipping Weight:
  K34000: 44 lbs (20kg)
  K34010: 18 lbs (8.2kg)
  Dimensions:
  K34000: 8.2 Cu. ft.

  K34010: 2.6 Cu. ft.

Test Method

• Determines the low temperature, low shear rate viscosities of gear oils,
  automatic transmission fluids, hydraulic oils and other fluid lubricants by
  use of the Brookfield viscometer.

  New BV3000 Brookfield Viscosity Liquid Bath
  • Permits viscosity measurements without the risk of temperature increase
  • 10 sample turntable
  • Mechanically refrigerated with digital indicating temperature control
  • Operating range to –55°C
  Constant temperature liquid bath permits testing of samples without the risk of sample temperature rise. After cooling in the air bath, the sample must be
  transferred to the balsa cell carrier for testing with the Brookfield viscometer. If the sample is not tested quickly, there is the risk of sample temperature rise. The Brookfield Viscosity Liquid Bath eliminates this risk by permitting the sample to be tested in a constant temperature environment. The Brookfield viscometer mounts directly on the bath and the samples are rotated into position under the spindle by means of a built-in turntable. Cooling system maintains temperature with ±0.05°C stability in the range of +10°C to –55°C. Bath temperature is displayed in digital format.

  Specifications
  Conforms to the specifications of: Note 7 of ASTM D2983
  Sample Capacity: 10 samples
  Temperature Range: +10°C to –55°C
  Temperature Control Stability: ±0.05°C
  Electrical Requirements:
  115V 60Hz, Single Phase, 16A
  220-240V 50 or 60Hz, Single Phase, 12A
  Dimensions: lxwxh,in.(cm)
  17x24x25(43x61x25)
  Net Weight: 265 lbs (120kg)

  New BV4000 Brookfield Viscosity Air Bath
  • Conforms to ASTM D2983 and related specifications
  • Mechanically refrigerated with digital indicating temperature control
  • Operating range to –50°C
  • Sixteen sample capacity
  Mechanically refrigerated cold cabinet prepares samples for Brookfield viscosity determinations on petroleum lubricants. A built-in turntable rotates the samples at 4rpm per specifications. Cooling system maintains cabinet temperature within ±0.1°C at temperatures as low as –50°C. Cabinet temperature is displayed in digital format on the front panel. Cabinet accommodates sixteen (16) sample cells with cell carriers. Includes insulated cover.
  Specifications
  Conforms to the specifications of:
  ASTM D2983; IP 267 Method A; ISO 9262; CEC-L-18A
  Capacity: 16 sample cells with cell carriers
  Temperature Range: +10°C to –50°C
  Temperature control accuracy: ± 0.1°C
  Sample Rotation: 4rpm
  Electrical Requirements:
  115V 60Hz, Single Phase, 16A

  220-240V 50 or 60Hz, Single Phase, 12A

BV5000 Programmable Brookfield Viscosity Liquid Bath

Sample soaking and testing in a single bath, eliminating the need for an air bath and the risk of sample temperature rise during transfer
• Redesigned for improved control of sample movement and handling during testing
• Microprocessor PID temperature control duplicates the sample cooling rates in ASTM D2983
• Up to 40 cooling/testing temperature profiles can be stored in memory

Redesigned programmable baths with improved features for sample handling and testing. Bath accommodates 10 samples for Brookfield Viscosity testing. Sample cells are immersed in a liquid bath for the entire soaking and testing period, eliminating the need to transfer cells from an air bath to a liquid bath with insulated balsa wood carriers. Also eliminated is the inherent risk of sample temperature rise during transfer. The programmable microprocessor PID controller stores up to 40 temperature profiles that duplicate the sample
cooling rates found in ASTM D2983. Steady state temperature accuracy and uniformity exceed ASTM requirements throughout the operating range from
ambient to -55°C. Air-cooled hermetic compressors provide efficient operation with the use of CFC-free refrigerants.

The mounting position for the Brookfield Viscometer has been changed to permit easier access to the samples and viscometer controls. Cabinet has a front window and glare-free fluorescent lighting for distortion free viewing of the sample cells. Cabinet construction is polyester-epoxy finished steel with a chemical-resistant composite top surface. A removable insulated cover with handle is included. Bath rests on adjustable leveling feet. Safety features include a probe fault detection circuit in the primary temperature controller and a redundant latching controller and probe for temperature fault protection.

Specifications
Conforms to the specifications of: ASTM D2983 - Note 1 and Appendix X3; IP 267; CEC L18A-30; ISO 9262
Sample capacity: 10 samples
Temperature control: Microprocessor PID digital-indicating programmable
controller with ±0.05°C steady state stability
Operating Range: ambient to –55°C
Electrical Requirements:
220-240V 50 or 60Hz, Single Phase, 12.6A

Dimensions: lxwxh,in.(cm)
41x34x38 (104x86.5x96.5)
Net Weight: 327 lbs (148.5kg)

Shipping Information

Test Method

Determines the time required for 60mL of sample to flow through a calibrated orifice under precisely controlled conditions. Saybolt Universal Seconds (SUS) is the standard measurement for lubricants, insulating oils and lighter fuel grades, and Saybolt Furol Seconds (SFS) is used for heavier oils and bitumens.

SV3000 Saybolt Viscosity Bath and
New SV4000 Saybolt Viscosity Bath
for Automatic Viscosity Timing
• Microprocessor control of temperature between ambient and 240°C (464°F)
• Four tube capacity
• Dual digital displays show setpoint and actual temperature
• Selectable temperature scale - Celsius or Fahrenheit
• Automatic timing option for simplified, accurate measurement of efflux times
• Conforms to ASTM D88, D244, E102, and related specifications

Constant temperature bath with available automatic timing feature for viscosity determinations using Saybolt viscometer tubes and orifices. Microprocessor PID circuitry assures precise 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 is provided. Accommodates four viscometers and four 60mL receiving flasks. Sliding draft shields and a
chemical-resistant alignment plate facilitate handling of the flasks, and glare-free fluorescent backlighting is provided for easy viewing of the samples. Communications software (RS232, etc.) ramp-to-set, and other enhanced features are available at additional cost. Contact your Koehler representative for additional information.

Automatic Timing Option – At the push of a button, the automatic timer starts the sample flow, senses the 60mL end point, and digitally records and displays the efflux time in 0.1 seconds resolution with an accuracy of  0.05%.Automatic timing improves testing accuracy and convenience, eliminating the chain and cork assembly and the need to manually time each sample. Timer
installation is available in any configuration from 1 to 4 positions.
Bath Construction and Safety Features – Insulated bath interior is constructed entirely of heavy gauge stainless steel. A built-in overflow pipe and drain valve

simplifies filling of the bath fluid to the proper level. Chemical resistant top plate provides excellent insulation and is easily removed to allow for cleaning of the bath interior. A cooling coil for tap water or refrigerated coolant is provided for operation at near-ambient temperatures. Steel cabinet has leveling feet and a chemical resistant polyurethane-epoxy finish.