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SV4000 Saybolt Viscosity Bath for Automatic Viscosity Timing
Koehler Instrument
Model Overview & Specs
Overview
SV4000 Saybolt Viscosity Bath for Automatic Viscosity Timing is offered as model K21414 (115V 60Hz) and K21424 (220-240V 50/60Hz) for viscosity determinations using Saybolt viscometer tubes and orifices. Microprocessor control provides temperature regulation between ambient and 464 °F (240 °C), with dual digital displays showing setpoint and actual temperature and a selectable Celsius or Fahrenheit scale. The automatic timing option starts sample flow, senses the 60mL end point and digitally records efflux time with 0.1 seconds resolution and 0.05% accuracy; timer installation is available in any configuration from 1 to 4 positions. The bath has a four viscometer tube capacity and conforms to ASTM D88, D244, E102, AASHTO T72 and FTM 791-304. Insulated bath interior is heavy gauge stainless steel with a built-in overflow pipe and drain valve, a removable chemical resistant top plate, a cooling coil for tap water or refrigerated coolant for near-ambient operation, and a steel cabinet with leveling feet and a chemical resistant polyurethane-epoxy finish. Bath capacity is 5 gal (19 L); electrical requirements are 115V 60Hz, Single Phase, 12.3A and 220-240V 50/60Hz, Single Phase, 6.4A; dimensions listed are 29 x 25 x 33 in. (74 x 63.5 x 84 cm) and 28 x 24 x 33 in. (72 x 61 x 84 cm); net weight is 90 lbs (40.8 kg) and shipping weight is 102 lbs (46.3 kg). Included accessories: Cleaning Plunger, Oil Strainer, Tube Nut Wrench, Port Closures, Chained Corks, Withdrawal Tube, Orifice Wrench, Port Covers and Thermometer Supports. 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 referenced for lubricants, insulating oils and lighter fuel grades, and Saybolt Furol Seconds (SFS) is referenced for heavier oils and bitumens. The automatic timing option provides simplified, accurate measurement of efflux times by starting the sample flow, sensing the 60mL end point, and digitally recording the efflux time, eliminating the chain and cork assembly and the need to manually time each sample.
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