Refrigerated Constant Temperature Baths
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. Communications software (RS232,
etc.) ramp-to-set, and other enhanced features are available at additional
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.
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
Four (4) plastic viscometer port covers with handles
Net Weight: 176 lbs
Shipping Weight: 300 lbs (136kg)
Dimensions: 42 Cu. ft.