Introduction: The dilatometer is composed of a domestic high-precision intelligent temperature controller or a Japanese 0.2-level programmable "expert" PID intelligent regulator, and is equipped with a vacuum-formed full-fiber inlaid resistance wire horizontal or vertical double-body high-temperature furnace. The instrument uses a microcomputer program temperature controller to automatically control the temperature of the furnace according to the temperature program specified in the experiment, and a differential dilatometer made of high-purity transparent fused silica tube with a high-precision digital displacement meter to record the elongation of the sample. This instrument is used to measure the average linear expansion coefficient (or linear expansion rate) of rigid materials between room temperature and 900°C. The instrument has the advantages of high temperature measurement and control accuracy, reliable work, convenient operation, high work efficiency (two samples at a time), etc. It is a supporting instrument for carbon analysis in accordance with ISO14420 and GB3074.4-1982 standards. Technical indicators: 1. Accuracy: soil 0.3% FS ± 1 word 2. Display mode: 4-digit double-row display 3. Input: Intelligent input, free choice of 11 types of thermocouples 4. Program setting: Programmable 9 segments, each segment is 9999 minutes, the program can be used for 99 large cycles 5. Control principle: 6 groups of conductive non-overshoot expert PID new algorithms are used to match the adjustment parameters, power and anti-overshoot and undershoot in different temperature zones. 6. Output: solid state relay time proportional output, the period is 0.5-120 seconds 7. Energy-saving servo start and power-on slow output can be set (1-120 seconds) 8. Ensure platform, power failure protection and digital lock function 9. Displacement measurement: ①. Measuring range: 2mm ②. Resolution: 1μ; Shielding gas flow rate: 0～10L/min; Sample: Φ20×50mm 10.Power source: 220V 11. Power rate: 2KW (horizontal) 1.5KW × 2 (vertical) 12.α measuring range: >1.0×10-6 ℃-1 13. Temperature range: room temperature～900℃
Introduction: The dilatometer is composed of a domestic high-precision intelligent temperature controller or a Japanese 0.2-level programmable "expert" PID intelligent regulator, and is equipped with a vacuum-formed full-fiber inlaid resistance wire horizontal or vertical double-body high-temperature furnace. The instrument uses a microcomputer program temperature controller to automatically control the temperature of the furnace according to the temperature program specified in the experiment, and a differential dilatometer made of high-purity transparent fused silica tube with a high-precision digital displacement meter to record the elongation of the sample. This instrument is used to measure the average linear expansion coefficient (or linear expansion rate) of rigid materials between room temperature and 900°C. The instrument has the advantages of high temperature measurement and control accuracy, reliable work, convenient operation, high work efficiency (two samples at a time), etc. It is a supporting instrument for carbon analysis in accordance with ISO14420 and GB3074.4-1982 standards.
