Product Description
The KV4000 Constant Temperature Kinematic Viscosity Bath with Integrated Digital Timing & Data Acquisition Software is a complete instrument and data acquisition system exclusively designed for conducting D445, D2170 and related test methods. 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.
Features and Benefits
~ Powerful software system for PC platforms operating in Windows 98 SE, 2000, NT, ME, and XP environments
~ Microprocessor temperature control between ambient and 150°C (302°F), and down to -20°C (-4°F) with an external chiller
~ Integrated digital timing for convenient measurement of sample efflux times
~ 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 over-temperature and low liquid level cut-off circuitry
~ Conforms to ASTM D445, D2170 and related specifications for kinematic viscosity testing
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.
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 0.1 second resolution and are accurate within 0.01%.
Bath chamber is a clear Pyrex vessel enclosed in a polyester-epoxy finished steel housing. Top working surface has seven 2 in. (51mm) viscometer ports and is constructed of stainless steel for easy cleaning. 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, a redundant adjustable 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. Bath rests on adjustable leveling feet. All electronics are mounted on a sliding tray for easy access. Includes thermometer holder and seven plastic port covers with handles.
Specifications:
Temperature Range: ambient to 150°C (302°F); -20°C to 150°C (-4°F to 302°F) with an external chiller
Temperature Display: 0.1°C/0.1°F resolution, calibrate to 0.01°C/0.01°F
Temperature Control Accuracy and Uniformity: Exceeds ASTM requirements throughout the operating range
Integrated Timing: Seven start/stop buttons with integrated LCD display, retention of viscometer constant, automatic calculation and display in viscosity units or seconds to 0.1 seconds accurate to within 0.01%.
Communication: RS232 port included with KV4000 (optional for KV3000)
Viscometer Ports: Seven round 2 in. (51mm) ports
Bath Medium: Water or suitable heat transfer fluid
The following link provides additional information from the manufacturer's brochure. Click to open the PDF in a new window or right-click to download it:
Koehler K23702 / K23792 (KV4000) Viscosity Bath or copy the following into your browser address window: labequip.com/stock/pictures/n879.pdf
Made in USA.
ACCESSORIES:
COMES COMPLETE WITH:
Port Covers, Delrin (7)
Thermometer holder
OPTIONAL ACCESSORIES AT ADDITIONAL COST:
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
K23377-01000 Cooling Coil Assembly
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
K23462 Digital Stopwatch
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
