Pressure calibrator BL504

for pressure gaugesdigitallaboratory

The BL504 liquid column pressure standardis a piston pressure vacuum gauge with a balanced liquid column. The workingprinciple is based on that the pressure generated by the liquid column in thereservoir and pipeline is balanced with the initial pressure of the piston.Therefore, when measuring pressure, it can measure the pressure from zero. TheBL504 is ideal for vacuum and low pressure calibration in primary metrologylabs. FEATURES • Ranges from -0.1MPa to 0.7MPa • ±0.005%rd + 1Pa accuracy • Motor drives the weight rotating. • Front window shows piston position • Built-in 0.01℃ reading thermometer APPLICATION • Primary pressure standard in national orregional metrology lab • High precision low pressure measurement incalibration lab