KV6 Viscometer Bath – 84200-3

The KV-6 Viscometer Bath is a temperature-controlled bath that maintains the temperature of viscometer tubes, which are used to measure the viscosity of liquid petroleum products.

The instrument consists of an oil-filled temperature-controlled bath. The bath holds up to six standard viscometer tubes, which can be viewed through the glass panel at the front of the instrument. Each aperture has a cover to minimize heat loss when not in use. LEDs illuminate the bath so that you can view the viscometer tubes more easily.


Methods: ASTM D445, ASTM D446, ASTM, D2170, ASTM D2270, IP 71, IP 226, IP 319, BS 188, BS 2000-71-2 & ISO 3105, BS EN 12595 & BS 2000-319, DIN 51 366, DIN 51 562, DIN EN ISO 3104, ISO 3104


  • Accommodates up to 6 viscometer tubes
  • Temperature range ambient to 150 °C
  • Temperature stability ±0.01 °C up to and including 100 °C, ±0.03 °C above 100 °C
  • Digital temperature control with Thermostir Plus
  • Oil, silicone fluid or water-filled depending on the temperature of use
  • Double-wall glass front panel ensures optimum insulation and reduce heat loss
  • Integral safety features
  • A clear and precise reading of viscometer tubes

An uninterrupted view of viscometer tubes is provided by an oversized double glazed front panel with the outer panel made from toughened safety glass to BS 3463. The outer panel is removable for easy cleaning.

A removable and recessed 6 place top plate has 62 mm apertures and covers with provision for two thermometer holders. The recessed design allows viscometer tubes to sit low in the bath and provides you with a much-improved vision of the upper timing marks on the viscometer tubes.

The instrument can hold seven viscometer tubes when used with the optional viscometer tube plate 84202-0 and 51 mm viscometer tube holders. A digitally controlled thermostir unit heats and stirs the bath, maintaining the temperature between 37 and 150 °C. A baffle helps ensure that the temperature is uniform throughout the bath.

When performing tests in higher ambient temperatures, you can connect an external cooling supply to the instrument’s internal cooling coil. The coolant circulates through the internal cooling coil, providing a temperature differential and allowing the thermostir to control the bath temperature more efficiently. The 99300-4 Mini Low-Temperature Bath/Circulator can supply chilled water to the KV-6 Viscometer Bath for use at high ambient temperatures.

The large 50-liter capacity ensures minimum temperature recovery time after loading of the bath, improving sample throughput.

Supplied with: Mains lead and instruction manual.

TEMPERATURE STABILITY ±0.01 °C up to and including 100 °C , ±0.03 °C above 100 °C
BATH FLUID Oil, Silicone fluid or water
VOLTAGE 220/240 V, 50/60 Hz
POWER 2.2 kW
SIZE (HXWXD) Bath outside dimensions 560 x 345 x 435 mm
Tank inside dimensions 526 x 273 x 400 mm
WEIGHT 33 kg
CCCN CODE Tariff 90278091