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GD-265C ASTM D445 Digital Kinematic Viscosity Tester

​The test involves timing the flow of a set volume of liquid under the influence of gravity through the capillary tube of a precisely calibrated viscometer. This process occurs within a controlled environment that ensures a consistent driving head and a temperature that is both closely monitored and known. The calculated kinematic viscosity is derived by multiplying the observed flow time by the viscometer's calibration factor. To achieve a precise kinematic viscosity value, the process must be repeated twice, and the final result is the mean of the two acceptable measurements.
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  • GD-265C

  • GOLD

ASTM D445 Digital Kinematic Viscosity Tester


Key Technical Features and Specifications:

  1. Electrical Requirements: AC 220V with a tolerance of ±10%, and a frequency of 50Hz with a tolerance of ±5%;

  2. Heating Elements: Equipped with two levels of heating power, 1000 W and 600 W;

  3. Mixer Motor: (1) Power Output: 6 W; (2) Operating Speed: 1200 revolutions per minute (RPM);

  4. Temperature Measurement Scope: From ambient temperature up to 100℃;

  5. Temperature Regulation Precision: ±0.1℃;

  6. Insulated Bath: (1) Capacity: 20 liters; (2) Construction: Comprised of two glass cylinders;

  7. Operational Conditions: (1) Surrounding Temperature: Between -10℃ and +35℃; (2) Relative Humidity: Less than 85%;

  8. Temperature Sensor: Made of platinum resistance material, specifically Pt100;

  9. Maximum Power Consumption: Does not exceed 1800 W;

  10. Capillary Viscometers: A set of 7 with diameters of 0.6, 0.8, 1.0, 1.2, 1.5, 2.0, and 2.5 mm.

GD-265 Series Kinematic Viscosity Testers

Model Options and Features:

  • GD-265B, GD-265C, GD-265D-1, GD-265H, GD-265H-1

  • All models offer a temperature range from ambient to 100ºC.

  • Temperature control accuracy varies from ±0.1ºC to ±0.01ºC depending on the model.

  • All models feature a continuous operation style.

  • The GD-265B and GD-265H-1 are single-layer, while the others are double-layer.

  • Sample capacity ranges from 2 to 4.

  • Timing and automatic calculation with printing are available in certain models (GD-265D-1, GD-265H, GD-265H-1).

Instrument Design:

   1.Dual-Layer Bath Design

The instrument's temperature-controlled bath is of a dual-layer construction. It consists of an inner hardened glass cylinder with dimensions φ300×300mm and an outer synthetic glass cylinder measuring φ360×285mm.

   2.Viewing System

An internal lamp is installed for clear visibility of the capillary viscometer's readings.

   3.Temperature Control System

(1) Sensor: Platinum resistance; Pt100;
(2) Controller: A digital and intelligent device capable of displaying four-digit readings on dual LEDs. It offers rapid temperature control with quick response and minimal overshoot, with an accuracy of ±0.1℃.
(3) Heating: Utilizes 1000 W and 600 W heaters for rapid temperature increase and adjustable power for stable temperature maintenance.

   4.Stirring Mechanism

Product pictures:

Laboratory Kinematic ViscometerTesting Equipment

Digital Kinematic Viscosity Bath

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