The following technical specifications describe the uni-cylinder rotational viscometer model VT-06. These data are measured under the manufacturer’s standard test conditions.Technical SpecificationsModel number: VT-06Measurement principle: uni-cylinder rotational viscometerRotor speed: 62.5 rpmMaximum continuous measurement time per measurement: 100 secondsDisplay value hold function: retains value at end of measurementBacklight function: switchable backlight with 60-second auto-off when powered by batteries (rotor not operating)Auto shutdown: if rotor is not turning and no controls are operated for 5 minutes (when AC adapter not used)Resume function: last selected rotor number setting is retained during power-offAmbient conditions for use: 5°C to 35°C, 10% to 90% RH (no condensation)Power requirements: alkaline batteries LR6, Ni-MH rechargeable batteries, or AC adapter VA-05J (5V to 7V; rated voltage 6V)Current consumption: approx. 250 mA (at maximum torque)Battery voltage check: 4-step battery status displayDimensions (excluding protrusions): 175 mm (H) × 77 mm (W) × 40 mm (D)Maximum dimensions (including protrusions): 175 mm (H) × 77 mm (W) × 45 mm (D)Weight: approx. 260 g (without batteries)Housing and rotor material: SUS304 stainless steelApplicable standards: CE marking, WEEE Directive, Chinese RoHSCalibration: calibrated according to JIS Z 8809:2011 standard liquidsViscosity Measurement Ranges by RotorNo. 3 rotor: 0.3 dPa·s to 13 dPa·s (resolution 0.1)No. 1 rotor: 3 dPa·s to 150 dPa·s (resolution 1)No. 2 rotor: 100 dPa·s to 4000 dPa·s (resolution 10)Sample Fluid CapacityNo. 1 and No. 2 rotors: approx. 350 mL (with JIS 300 mL beaker)No. 3 rotor: approx. 150 mL (with supplied No. 3 cup)Clearance between rotor end and cup bottom: about 15 mmMeasurement AccuracyAccuracy: ±10% ±1 digit of indicated valueReproducibility: ±5%Supplied AccessoriesNo. 1 rotor (dia. 24 mm × 53 mm × 166 mm) – SUS304No. 2 rotor (dia. 15 mm × 1 mm × 113 mm) – SUS304No. 3 rotor (dia. 45 mm × 47 mm × 160 mm) – SUS304No. 3 cup (dia. 52.6 mm × 75 mm) – SUS304Rotor extension (900 mm; 300 mm × 3 sections) – SUS304IEC LR6 (size AA) alkaline batteries (4 units)Instruction manualViscosity measurement guideInspection certificateOptional Accessories (sold separately)AC adapter VA-05JDedicated stand VA-04Key Benefits for Quality Control LaboratoriesThe features listed above translate directly into practical gains for daily viscosity testing. Each point below connects a specification to a measurable improvement in workflow.Wide viscosity range in a single instrument – The three interchangeable rotors cover low‑viscosity fluids (0.3 dPa·s) up to high‑viscosity pastes (4000 dPa·s). One handheld unit replaces multiple single‑range viscometers. A laboratory testing gear oil (high viscosity) and paint (medium viscosity) uses the same instrument.True portability for on‑site testing – The unit weighs only 260 grams without batteries and measures 175 mm × 77 mm × 40 mm. It fits in a coat pocket. Operators carry it to storage tanks, mixing vessels, or production lines. No need to bring samples back to a fixed laboratory bench.Battery‑powered operation anywhere – The viscometer runs on four AA alkaline batteries, Ni‑MH rechargeable batteries, or an AC adapter. A field technician tests viscosity at a remote tank farm without searching for a power outlet. The battery status display (4 steps) gives advance warning before power runs low.Simple one‑hand operation – Attach the rotor, submerge it in the fluid, press the start button, and read the viscosity directly in decipascal‑seconds (dPa·s). No complex setup, no external computer, no training course. The display value hold function retains the reading after the measurement ends.Automatic power management for extended use – When running on batteries, the backlight turns off after 60 seconds of rotor inactivity. If the rotor is not turning and no buttons are pressed for 5 minutes, the unit shuts down automatically. A single set of batteries lasts for many measurement sessions.Resume function saves time between tests – The instrument remembers the last selected rotor number even when powered off. The operator does not need to re‑enter the rotor setting each time. Turn on, submerge, and measure.Common Frustrations with Viscosity Measurement – and How This Instrument Solves ThemPain point: Bulky benchtop viscometers cannot be taken to the sample.Dragging a 5 kg benchtop unit to a mixing tank or outdoor storage vessel is impractical. The Master Science made by RION VT‑06 rotational viscometer (a lightweight portable unit weighing only 260 grams) fits in one hand and slips into a pocket. An operator climbs a ladder to a tank manway, dips the rotor, and reads the viscosity in seconds. No sample transport, no temperature change errors, no lost time.Pain point: Narrow viscosity range requires multiple instruments.A laboratory testing low‑viscosity solvents (1 dPa·s) and high‑viscosity adhesives (3000 dPa·s) typically needs two or three different viscometers. The same Master Science made by RION VT‑06 rotational viscometer (with three interchangeable No.1, No.2, and No.3 rotors) spans from 0.3 dPa·s to 4000 dPa·s. A single instrument covers solvents, paints, gear oils, adhesives, and food products. One purchase, one calibration, one training.Pain point: Power outlets are not available in the field.A quality control technician testing viscosity in a warehouse or outdoor receiving area cannot always find a wall socket. The Master Science made by RION VT‑06 rotational viscometer (a battery‑operated device using four AA alkaline or Ni‑MH batteries) runs anywhere. The technician carries spare batteries in a pocket. The AC adapter is optional for benchtop use, not required for field work.Pain point: Complicated operation leads to operator errors.Multi‑button programming, external software, and calibration curves confuse new operators. The Master Science made by RION VT‑06 rotational viscometer (a simple start‑and‑read device with direct digital display) has three controls: power, rotor selection, and start. The viscosity appears directly in dPa·s. A production line operator with five minutes of training performs accurate measurements.Pain point: No way to confirm measurement reproducibility.When a retest gives a different value, the operator does not know if the sample changed or the instrument drifted. The Master Science made by RION VT‑06 rotational viscometer (specified with ±10% accuracy and ±5% reproducibility) provides guaranteed performance bounds. The included inspection certificate confirms factory calibration according to JIS Z 8809:2011. Any value outside expected range is a sample issue, not an instrument issue.Which Fluids and Industries Use This ViscometerPaints and coatings – Latex paints, primers, varnishes, and lacquers fall within the No. 1 rotor range (3‑150 dPa·s). Production batches are checked at the filling line. Raw material incoming inspection uses the same unit.Adhesives and sealants – White glue, epoxy resins, and silicone sealants often measure between 100‑4000 dPa·s using the No. 2 rotor. The operator dips the rotor directly into the pail or drum.Petrochemicals and lubricants – Gear oils, hydraulic fluids, and cutting oils span the low‑to‑medium range. The No. 3 rotor (0.3‑13 dPa·s) suits light spindle oils. The No. 1 rotor (3‑150 dPa·s) handles engine oils.Food and beverage – Syrups, honey, ketchup, and sauces are measured for quality control. The No. 1 or No. 2 rotor is used depending on product thickness. The SUS304 stainless steel construction resists food contact and cleans easily.Cosmetics and personal care – Lotions, creams, shampoos, and gels are tested during formulation and production. The portable unit moves between formulation lab, pilot plant, and production floor.Inks and printing fluids – Screen printing inks, flexo inks, and gravure inks have viscosity specifications that affect print quality. The No. 1 rotor covers most ink viscosities.Physical Configuration and Daily OperationPreparation – Attach the required rotor (No. 1, No. 2, or No. 3). For the No. 3 rotor, also attach the No. 3 cup. For the No. 1 and No. 2 rotors, place a JIS 300 mL beaker containing approximately 350 mL of sample under the rotor.Positioning – Hold the instrument horizontally in one hand, or place it on the optional VA‑04 dedicated stand for hands‑free operation. For distant samples (e.g., deep drums), attach the 900 mm extension rod (three 300 mm sections) to the No. 1 or No. 2 rotor.Measurement – Turn the power on. Select the rotor number using the selector button. Lower the rotor until the immersion mark aligns with the fluid surface. Press the START button. The rotor spins at 62.5 rpm for up to 100 seconds. The display shows the viscosity in dPa·s. The display hold function retains the value after the measurement ends.Shutdown – Remove the rotor from the fluid. Clean the rotor and cup with an appropriate solvent. The instrument shuts off automatically after 5 minutes of inactivity when running on batteries.Maintenance and CareCleaning – All rotors, cups, and the extension rod are SUS304 stainless steel. Clean them with a soft cloth and a solvent compatible with the sample. Do not use abrasive pads that could scratch the surface. Ensure all parts are dry before the next use.Batteries – Use four AA alkaline (LR6) or Ni‑MH rechargeable batteries. The battery status display shows four levels of remaining charge. Replace or recharge when the indicator shows low battery. Do not mix old and new batteries or different battery types.Storage – Store the instrument in a clean, dry place between 5°C and 35°C. Remove the batteries if the unit will not be used for an extended period. Keep the rotors and cup in the supplied protective case to prevent damage.Calibration – The factory calibration is performed according to JIS Z 8809:2011 using certified standard viscosity liquids. Recalibration is recommended annually or whenever the instrument is used for critical applications. Contact Master Science made by RION or an authorised service centre for calibration services.Ordering InformationModel VT‑06 ships as a complete kit including:Main instrument body (viscometer)No. 1 rotor (SUS304)No. 2 rotor (SUS304)No. 3 rotor (SUS304)No. 3 cup (SUS304)Rotor extension rod (900 mm, three 300 mm sections)Four AA alkaline batteries (IEC LR6)Instruction manualViscosity measurement guideInspection certificateThe customer must specify any optional accessories when ordering:VA‑04 Dedicated stand (recommended for laboratory benchtop use)VA‑05J AC adapter (for continuous operation without batteries)The instrument is supplied calibrated. A calibration certificate is included. Additional calibration services or extended warranties may be available upon request. Download
