石膏收縮膨脹儀是檢測儀器，用來(lái)測定石膏、砂漿、水泥的收縮和膨脹變形量，以確定其收縮系數和膨脹參數。使用前務(wù)必仔細閱讀說(shuō)明書(shū)。并由**實(shí)驗人員操作，以避免操作不當引起的傷害。如需了解更多資料請與我公司客服人員聯(lián)系。石膏收縮膨脹儀由上海榮計達儀器科技有限公司提供，設備質(zhì)保期一年，一年內產(chǎn)品如有質(zhì)量問(wèn)題，供方負責免費維修。如果因操作不當或者人為損壞，我公司亦應提供維修、更換服務(wù)，由此產(chǎn)生的費用我公司會(huì )酌情收取。
Gypsum shrinkage and expansion meter is a testing instrument used to determine the shrinkage and expansion deformation of gypsum, mortar, and cement to determine its shrinkage coefficient and expansion parameters. Be sure to read the instructions carefully before use. It is operated by ** experimental personnel to avoid injury caused by improper operation. For more information, please contact our customer service staff. Gypsum contraction dilatometer is provided by Shanghai Rongjida Instrument Technology Co., Ltd. The equipment warranty period is one year. If the product has quality problems within one year, the supplier is responsible for free maintenance. If due to improper operation or man-made damage, our company should also provide repair and replacement services, and the costs incurred by our company will be charged at our discretion.
石膏收縮膨脹儀技術(shù)參數:
★標準棒長(cháng)度 175mm
★標準棒膨脹系數 15×10-6/℃
★位移計精度 0.01mm
★位移計量程 ±5mm
★百分表A小刻度值：0.01mm
★百分表A大量程：10mm
★測量范圍：170～180mm
★測頭球面孔半徑：R=3mm
★標準桿基長(cháng)：175mm
★外形尺寸 220×220×510mm
Technical parameters of gypsum contraction dilatometer:
Standard rod length: 175mm
★ Standard bar expansion coefficient 15 × 10-6 / ℃
★ Displacement meter accuracy 0.01mm
★ Displacement measurement range ± 5mm
★ Small scale value of dial indicator A: 0.01mm
★ Large range indicator A: 10mm
★ Measuring range: 170 ～ 180mm
★ Probe ball face radius: R = 3mm
★ Base length: 175mm
★ Dimensions 220 × 220 × 510mm
石膏收縮膨脹儀使用方法：
★先將標準棒置于工作臺上，擰動(dòng)調整螺絲使之近似垂直。
★將測量框架置于標準棒的頂頭，調整螺桿和螺母，使百分表對準零位（或記下百分表之刻度）。
★將制作養護好的試件兩端擦拭凈，然后放置在工作臺上，然后把測量框架套在試件上，并左右移動(dòng)表框，使試件與測量框架的測量頭準確地接觸，此時(shí)即可開(kāi)始讀數，并記錄下表盤(pán)上的刻度值。
★如果實(shí)驗不是連續進(jìn)行或實(shí)驗歷時(shí)較久后，則在測試前須先在標準棒上校準測量框架。
How to use gypsum contraction dilatometer
★ Put the standard rod on the workbench first, and turn the adjustment screw to make it almost vertical.
★ Place the measuring frame on the top of the standard rod, adjust the screw and nut to make the dial indicator align with the zero position (or write down the dial indicator scale).
★ Wipe the two ends of the prepared and cured test piece, then place it on the workbench, then put the measuring frame on the test piece, and move the table frame left and right, so that the test piece and the measuring head of the measuring frame accurately contact. You can start reading and record the scale value on the dial.
★ If the experiment is not continuous or the experiment lasts a long time, the measurement frame must be calibrated on the standard bar before the test.
SP-175石膏收縮膨脹儀使用注意事項:
★使用時(shí)，忌用手直接與標準棒接觸，應持外外套部分，以防止標準棒受人體手溫的影響。
★儀器用畢后，應將測量框架的測量頭和百分表探拭凈，并涂以鐘表油；測試過(guò)程中，應使百分表的測頭緩慢而平穩地與試件接觸，不允許沖擊和碰撞，嚴禁將百分表測桿頂過(guò)A大量程范圍，以免影響表的靈敏度和使用壽命。
SP-175 plaster contraction dilatometer precautions:
★ When in use, do not touch the standard rod directly with your hand, and you should hold the outer jacket to prevent the standard rod from being affected by human hａnd temperature.
★ After the instrument is used, the measuring head and dial indicator of the measuring frame should be cleaned and coated with clock oil; during the test, the dial indicator should be brought into contact with the test piece slowly and smoothly. For impact and collision, it is strictly forbidden to push the dial gauge rod over a large range of A to avoid affecting the sensitivity and service life of the meter.
