SI Analytics®
ViscoClock plus

The ViscoCIock plus is an electronic timing unit for glass capillary viscometers used to determine kinematic and relative viscosity. Succeeding the well-proven ViscoCIock, this instrument features data storage and simpler handling. The ViscoClock plus is especially designed for Ubbelohde type viscometers which are well-known for highest precision. The ViscoClock plus automatically measures the flow time of temperature-stabilised liquids in capillary viscometers by means of infrared light barriers: the manual measurement with a stopwatch becomes obsolete. The viscometer including a sample is inserted into the ViscoClock plus and immersed into a thermostatic bath for temperature stabilisation. After thermostating, the sample is pumped into the measuring bulb and the flow time is detected automatically. The large display enables easy read-off of fl ow times and additional information: date, time, sample ID and viscometer ID.
  • Automatic and precise flow time measurement for a low price.
  • Suitable for SI Analytics® Ubbelohde, Micro Ubbelohde and Micro Ostwald viscometers.
  • Data storage incl. time, date, viscometer and sample ID.
  • Stand is made of high performance engineering plastic PPA and enables measuring temperatures up to 150 °C.
  • Electromagnetic venting valve for convenient handling of Ubbelohde viscometer.
  • Compatible with all SI Analytics® thermostatic bath types.
Technical Data:
Measuring range time:up to 999.99 s; resolution 0.01 s
Accuracy of time measurement:± 0.01 s / ± 1 digit; however no more precise than 0.1 %;
indicated as measuring uncertainty with a confidence level of 95 %
Measuring range - viscosity:0.35 to10,000 mm² / s (cSt)
the absolute, kinematic viscosity is dependent on the numerical value of the viscometer constant and on the measuring conditions, in particular the measuring temperature
Display LCD grafic display (FSTN):128 x 64 pixel, 51 x 31 mm (w x h)
seconds indication with 2 decimal digits after the decimal point, resolution 0.01 s
Voltage supply:DC + 9 V
power supply socket for low voltage connection: coaxial power connector, inner Ø 2.1 mm, plus pole at inner contact for connection of universal power supply TZ 1858
Plug connections:USB host to connect USB flash drive or printer (TZ 3863), USB OTG to connect (PC), printer (TZ 3863) or USB flash drive. Type A USB connector,
Type B mini USB connector
Dimensions (H x W x D):515 x 90 x 30 mm
Weight:450 g (without viscometer)
Ambient temperature:+ 10 to 40 °C for storage and transport
SI Analytics®  ViscoClock plus
TypeDescriptionPUOrder No.in StockPrice/Unit/NOK 
ViscoClock plustiming unit for capillary viscometer, incl. power supply 100 to 230 V and hand pump15445771-15,478.00Order
ViscoClock plus M1ViscoClock plus and acrylic glass thermostatic bath CT72/P (230 V) for temperatures + 10 to + 60 °C15445770-51,507.00Order
ViscoClock plus M2ViscoClock plus and glass panelled thermostatic bath CT72/2 (230 V) for temperatures - 40 to + 150 °C15445769-78,889.00Order
Bracket type 053 92st. steel for every kind of Ubbelohde viscometers15421451-1,692.00Order