LKV3000/LKV4000 Refrigerated Constant Temperature Baths
New 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 push-button 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). 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 -30ºC (-22ºF). Extended range LKV4000 model operates at temperatures as low as -70ºC (-94ºF). 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 over-temperature condition or disconnection of the primary probe. A redundant adjustable controller and sensor probe provide added over-temperature protection, and an integrated low liquid level sensor removes power to the heaters if the bath liquid is not filled to the proper level or falls below during operation. Both over-temperature 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.
Optical sensors and viscometer tubes to be ordered separately
Conforms to the specifications of: ASTM D445, D2532, D6074, D6158; IP 71; ISO 3104; DIN 51550; FTM 791-305
Testing Capacity: Four (4) glass capillary viscometers
Viscometer Ports: Four (4) round 2" (51 mm) ports
Bath Dimensions: 9.5" dia x 12" deep (24x30cm)
Bath Capacity: 3.7 gal (14 L)
Display: 0.1ºC/ºF resolution, calaibrate to 0.01ºC/0.01ºF
Control accuracy and uniformity: Exceeds ASTM requirements throughout the operating range
Four (4) Delrin® viscometer port covers with handles
Net Weight: 176 lbs (80 kg)
Shipping Weight: 300 lbs (136kg)
Dimensions: 42 Cu. ft.