TESC-2983 Thermoelectric Sample Conditioner System

ASTM D2983 automated Procedure D & ASTM D8210 - For Low Temperature Viscosity of Lubricants

The compact, economical TESC-2983 (thermoelectric sample conditioner) viscometer system provides outstanding precision for the new ASTM D2983 automated procedure D conditioning and testing process for low temperature viscosity of gear oils and ATF, as well as ASTM D8210. Allows for unattended operation. Environmentally-friendly Peltier thermoelectric cooling does not require hazardous fluids. Small footprint conserves bench space and allows installation of multiple instruments for redundancy and multiple temperature cycles. Eliminates sample disruption during preheating, room temperature stabilization, cooling and final viscosity testing. Reduces result variability due to temperature fluctuation. Provides superior precision.

Common Applications

  • Gear oils
  • Automatic transmission fluids
  • Torque and tractor fluids
  • Industrial and automotive hydraulic oils
  • Industrial lubricants
  • Other fluids where low-temperature viscosity is critical

Product Video

Superior precision in fully automated thermal conditioning and testing (−40 °C to +90 °C)

  • Provides unsurpassed results for ASTM D2983 automated procedure D sample conditioning and testing
  • Allows for unattended operation
  • Eliminates sample disruption during preheating, room temperature stabilization, cooling and final viscosity testing
  • Reduces result variability due to temperature fluctuation and operator intervention

Cost effective, ultra-compact design with low energy consumption

  • Small footprint conserves bench space and allows installation of multiple TESC systems, providing redundancy and multiple temperature cycles
  • Dedicated PC is not required for standard instrument operation*
  • Only 300 W power per unit

Environmentally-friendly Peltier thermoelectric cooling

  • Peltier cooling is environmentally-friendly and does not require the use of hazardous bath fluids or refrigerants
  • Enclosed insulated sample chamber mitigates the effects of laboratory air temperature on the test

Pre-developed test programs for common lubricants (gear oil and ATF)

  • Reduces instrument set-up time
  • Measures viscosity at multiple speeds automatically

Easy-lift system

  • Configured for use with the Brookfield® DV2T viscometer and compatible with most Brookfield® models
  • Simplifies positioning of the viscometer head

Digital recording, printing and exporting of thermal test history and final viscosity data for convenient import into Microsoft® Excel® or other programs

* A PC is required to reprogram the unit for tests other than gear oil at −40° C

Dimensions (W × D × H) 16.5 cm × 51.0 cm × 76.0 cm (6.5 in × 20.0 in × 30.0 in)
Weight 19.5 kg (43 lb) including DV2T viscometer
Shipping dimensions (W × D × H) 73.7 cm × 71.1 cm × 58.4 cm (29.0 in × 28.0 in × 23.0 in)
Shipping weight (with all items) 34 kg (75 lb)
Sample capacity 1
Temperature range & accuracy −40 °C to 90 °C (± 0.1 °C)
Sample volume 20 mL
Operating conditions 15 °C to 30 °C, 10% to 75% relative humidity (non-condensing), Installation Category II, Pollution Degree 2
Electrical specifications 100 Vac to 240 Vac 50/60 Hz, 300 watts power
Compliance CE Mark; EMC directive (2004/108/EC); Low voltage directive (2006/95/EC); ROHS
Data output USB and RS-485


Link to Downloads page for Software and Firmware 

Thermoelectric Sample Conditioner (TESC) System includes the thermoelectric sample conditioner unit, Brookfield® DV2T viscometer and support, temperature control software, #4B2 spindle, EZ-Lock spindle coupling, pre-loaded test programs on USB memory stick, USB to RS-485 cable, test cells (12 pack), 20 mL plastic syringes (5 each) and CL160 viscosity reference standard (500 mL). The unit is pre-calibrated for testing gear oil at −40 °C. Specify desired factory installed options when ordering. A computer is note required for normal operation but is required if reprogramming instrument test parameters.  Description Part #
100 Vac to 240 Vac, 50/60 Hz 9725-F81


Alternative sample/temperature calibration (other than gear oil at −40 °C) is available at the time ordering.


Spindle, 4B2 Threaded D2983


Coupling Converter EZ Lock to Thread


Test Cells 150mm x 25mm OD, Pyrex (case of 72)


Test Cells 150mm x 25mm OD, Pyrex (pkg of 12)


N27C Viscosity Standard 0.5 L 39K at -40 C


N115B Viscosity Standard 0.5 L


N120B Viscosity Std 0.5 L -40 deg C SAE 75W Gear Oil Std


N480B Viscosity Std 0.5 L -26 deg C SAE 80W Gear Oil Std


N1400B Viscosity Std 0.5 L -12 deg C SAE 85W Gear Oil Std


N14B Viscosity Standard -40 C 0.5 L SAE spec J1536


CL160 Viscosity Standard 0.5 L


CL240 Viscosity Standard 0.5 L


CL280 Viscosity Standard 0.5 L


CL340 Viscosity Standard 0.5 L


CL600 Viscosity Standard 0.5 L


Syringe 20ml Norm-Ject Luer Slip


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