TR Tester

This device measures the retraction rate of elongation when a specimen is subjected to a certain elongation, frozen, and then gradually warmed up. The encoder is used to measure the retraction, and a PC is used to set test conditions, display data (TR value, retraction rate), draw graphs (temperature, retraction rate), and save the results to a file.

• Equipped with a dual-stage refrigeration system, ethanol can be cooled down to -73°C. The chiller can be operated on a timer, so testing can be started immediately after the time is set in advance.
• The data measured by the testing machine are linked to the PC, the test data can be automatically aggregated, and the results can be displayed.

Standard JIS K 6261-4,  ISO2921,  ASTM D 1329

Number of Samples: 6

Sample Size: Length of parallel part: 50 mm or 100 mm

Temp. Range: -70°C to 20°C

Test Stroke: 200 mm max. (for the 50-mm samples) *Initial elongation setting is manual.

Displacement :  Rotary Encoder (2000 P/R)

Measurement: 0.065 mm / P

Cooling Method: Dual Timer -Stage (99 h Refrigerator 59 min) （3 Three-phase AC200V 1.1KW＋1.1KW）

Heat Transfer Medium: Ethanol (approx. 18L)

Heating Method: Heater, 3KW thyristor control

Temperature Control:  PID-controlled digital temperature controller, Sensor PT100Ω

Safety Device: Leakage breaker, overheat protector, float switch

PC Specifications:

・ OS : Windows 10

・ Slot : Three PCI slots required

・ Monitor resolution : 1280×1024 or higher

Data Processing and control

・ Equipment operation

・ Test condition setup

・ Data display (TR values, retraction rate)

・ Graphic display (temperature - retraction)

・ Filing (Data, Test Conditions, PID Settings)

Weight 210 Kg(without heat transfer medium)

Power Supply : Three-phase AC200V or 380V, 50/60Hz

Outer Dimensions: 520(W)×780(D)×1790(H)mm