BL511 HYDRAULIC DEADWEIGHT TESTER PRESSURE SELECTABLE SHEET The model BL511 hydraulic deadweight testers are applicable in a very wide variety of pressure calibration and measurement tasks. The piston cylinder assembly is the heart of the dead weight tester and responsible for its high accuracy. We manufacture piston cylinders with accuracies from 0.05% up to 0.005% of reading. To give an idea of the manufacturing skills, the space between the piston and the cylinder is in the um range and can only be measured in a climate room. ■ Built -in filter in 400ml oil reservoir ■ Shows pressure regulator rod position ■ 3.5-inch LED shows piston position, ambient temperature and humidity ■ Piston moving position indicator can be easily calibrated ■ The piston and cylinder are made of the high intensity, extreme hardness and lowest thermal expansion tungsten carbide, which density is 15 g/cm3, thermal coefficient of expansion is 16.5 ppm /°C ■ Five-year warranty for piston stability ■ Piston material: Tungsten carbide ■ Cylinder material: Tungsten carbide ■ Mass material: 304 non-magnetic stainless steel ■ Hydraulic base material: Aluminium alloy ■ Transforming and lubrication medium: Mineral Oil (<25MPa); Sebacate (>25MPa) ■ Connector: Metric (NPT or BSP is option) ■ BL511 Hydraulic deadweight tester base ■ Piston cylinder unit ■ 304 non-magnetic stainless steel mass set PTIONAL ACCESSORIES AND SERVICES ■ Pressure calibration labs ■ Pressure measurement in field Balun Technology Co., Ltd T: +86-10-6240 6768 E: [email protected] Add: 1322, F/3, Bldg 1, 33 Zique Rd, Haidian, Beijing100095, China F: +86-10-8978 0678 W: