BL507 LOW PRESSURE DEADWEIGHT TESTER SPECIFICATION ■ Piston material: Ceramic ■ Cylinder material: Tungsten carbide ■ Mass material: 304 stainless steel ■ Base material: Aluminium alloy ■ Seal material: Buna-N ■ Medium: Dry clean air, purity class 1-2-1 (ISO 8573-1) ■ Gravity: 9.80665 m/s2 or customize local gravity. ■ Pressure units: kPa, mbar, inch water (optional) ■ Connector: Metric, (NPT and BSP is optional) ■ Base weight: Appro. 20kg ■ BL507 Low pressure deadweight tester base ■ Piston cylinder unit (0.1 kg) ■ 304 stainless steel mass set (8kg) ■ Accuracy is better than 0.01% of reading ■ The piston is ceramic, which temperature coefficient is only 3.2x10-6m/°C ■ 20cm2 Big piston areas can meet high precision float requirement ■ Modular piston and cylinder design is easy to maintenance and re-calibration. ■ Gas lubrication makes high sensitivity. ■ Built-in air purifier on a molecule filter ■ High quality needle valves provide optimum control and sealing OPTIONAL ACCESSORIES AND SERVICES ■ Piston cylinder unit based on Kn=10kPa/kg ORDERING MODEL NUMBER ■ Primary pressure standard in lab ■ Reference pressure measure on workshop Add: 1322, F/3, Bldg 1, 33 Zique Rd, Haidian, Beijingl00095, China