Rotational viscometers
EnviSense rotational viscometers measure the viscosity of liquids — paints, adhesives, oils, cosmetics, food and pharmaceutical products — by rotating a spindle immersed in the sample. The range includes benchtop laboratory models with a wide measuring range and digital control, and portable, battery-powered viscometers for control on the production line. We match the measuring range, spindles and version to the liquid type and the point of measurement.
Rotational viscometers — available models
DV+PRO rotational viscometers
Programmable DV+PRO rotational viscometers with digital viscosity readout, an RS232 interface and DV Gather software. Four models (DV-1/2/3 +PRO and DV-E) span viscosities from a few mPa·s to over 100 million mPa·s.
- Programmable measurement sequences and stored methods for repeatable results
- RS232 interface and DV Gather software — live view and export to a spreadsheet
- Temperature probe included — viscosity measured with sample-temperature control
- Very wide viscosity range via the LDV/RDV/HADV/HBDV spindle sets
NDJ-ST rotational viscometers
NDJ-ST laboratory rotational viscometers for measuring liquid viscosity — a range from 1 to 2,000,000 mPa·s (NDJ-8ST), ±1% accuracy and 0.5% repeatability. Four spindles as standard, an optional 0# spindle for low viscosities.
- Wide measuring range — up to 2,000,000 mPa·s (NDJ-8ST)
- ±1% accuracy across the range, 0.5% repeatability
- Four spindles (1#–4#), optional 0# for low viscosities
- Up to 8 rotational speeds (0.3–60 rpm on the NDJ-8ST)
NTV-S rotational viscometers
Advanced NTV-S rotational viscometers with a 5-inch touchscreen and data-acquisition software — a range up to 104 million mPa·s, ±1% accuracy and 0.5% repeatability. Storage, password protection and generation of charts and reports.
- 5" touchscreen showing all parameters
- Very wide range — up to 104 million mPa·s (NTV-S3)
- Data-acquisition software for charts and printouts
- ±1% accuracy, 0.5% repeatability
PDV portable rotational viscometers
PDV portable, battery-powered rotational viscometers for viscosity measurements in the field and on the production line — a range up to 1,200,000 mPa·s (HPDV-1), ±2% accuracy and 8 hours of battery life. Four spindles and a lithium battery as standard.
- Battery power — up to 8 hours of fieldwork
- Three models — range up to 1,200,000 mPa·s (HPDV-1)
- ±2% accuracy across the range, ±1% repeatability
- Four spindles (B1–B4), 4 speeds (60–200 rpm)
SNB rotational viscometers
Digital SNB rotational viscometers with continuously adjustable rotation speed and automatic calibration on spindle change. Four models (SNB-1/2/3 and SNB-Al) cover viscosities from a few to tens of millions of mPa·s.
- Continuously adjustable spindle rotation speed
- Automatic viscosity calibration when the spindle is changed
- Result and measurement settings on a clear LCD screen
- Membrane-keypad operation — suited to laboratory conditions