KV5000 Constant Temperature Kinematic Viscosity Baths with Optical Timing Sensors for Automatic Viscosity Measurement


 

Test Method
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
• Optical sensor detection system accurately measures sample flow

• Automatic calculation and display of results in viscosity units or seconds

• Accommodates Ubbelohde, Cannon-Fenske, and Reverse Flow viscometers

• Dual digital displays show setpoint and actual bath temperature

• Microprocessor control of temperature with selectable scale (C or F)

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

• Conforms to ASTM D445, IP 71 and related specifications

 

 

 


 

KV5000 Kinematic Viscosity Bath
New Koehler KV5000 series kinematic viscosity baths with optical sensors provide automatic viscosity measurement of petroleum products. Each viscosity bath includes communication and power ports for each optical sensor in addition to the full operational features of the modified KV4000 series baths. Each KV5000 bath can utilize up to five optical sensors (K23780). Viscometer tubes are easily installed and removed, avoiding sample contact with the optical detection system. Rugged construction of optical sensors prevents corrosion and provides for easy cleaning.

Constant temperature bath 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 five 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 Customer Service representative for more information.

Integrated Timing Features
— KV5000 utilizes software to allow the user can enter the viscosity constant for each viscometer and then get the test result in both efflux time and viscosity units automatically.

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 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
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 Range: ambient to 110C (230F)

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

Temperature Control Accuracy and Uniformity: Exceeds ASTM requirements throughout the operating range

Software Package: RS232 communication port and software included with KV5000

Viscometer Ports: Five round 2" (51mm) ports

Bath Medium: Water or suitable heat transfer fluid

Included Accessories
Port Covers (7)
Thermometer holder


Ordering Information

 

Catalog
Number

Product Description

Electrical
Requirements

Bath
Depth

Bath
Capacity

Dimensions
Ixwxh,in.(cm)

Net
Weight

K23702-OS

KV5000 Viscosity Bath

115V, 50/60Hz
Single Phase, 12.6A

12"
(31cm)

5.8 gal
(22 L)

20x15x24
(51x39x62)

78 lbs
(35.5kg)

K23792-OS

KV5000 Viscosity Bath

230V, 50/60Hz
Single Phase, 7.2A

12"
(31cm)

5.8 gal
(22 L)

20x15x24
(51x39x62)

78 lbs
(35.5kg)

K23708-OS

KV5000 Viscosity Bath

115V, 50/60Hz
Single Phase, 12.6A

18"
(46cm)

8.9 gal
(34 L)

20x15x31
(51x39x77)

90 lbs
(41kg)

K23798-OS

KV5000 Viscosity Bath

230V, 50/60Hz
Single Phase, 7.2A

18"
(46cm)

8.9 gal
(34 L)

20x15x31
(51x39x77)

90 lbs
(41kg)

K23780

Optical Sensor*

 

 

 

 

 

 

*Please specify quantity and glassware when ordering K23780 sensors.


 

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