Differential Pressure DWT, (1～60) MPa, 0.01%RD, Sebacate, Tungsten Carbide PCU, 304SS mass set, Metric connector with adapters
MODEL BL508 DIFFERENTIAL PRESSURE DEADWEIGHT TESTSER
The main challenge of defining ΔP at high line pressures comes from the very high ratio of the line pressure to the differential pressure, and the fact that relative small instabilities in the magnitude of line pressure are very large in comparison to the small magnitude of the differential pressure.
The BL508 differential pressure deadweight tester uses the principle of high line differential measurement with two oil lubricated / gas operated pistons allows setting and maintaining the line pressure with an uncertainty much lower than the overall measurement uncertainty on either piston. The master and slave pistons are cross-floated at the line pressure prior to making differential measurement to minimize the contribution of line pressure errors to differential pressure. High line differential mode relies upon the very high sensitivity of piston cylinder unit to set and stabilize low differential pressure relative to high line pressures. (The 60MPa use oil lubricated / oil operated piston)
FEATURES
Measure the differential pressure under the high static pressure 60MPa
Each piston and cylinder unit can be used separately to measure gauge pressure
Two oil lubricated / gas operated pistons
Over-pressure protection is integrated
Built-in oil/gas separator
APPLICATION
Primary pressurestandards in laboratories
Precision pressure measurement
PRESSURE RANGE SELECTABLE SHEET
Part Number
Gauge P. / Differential P.
Kn Value
Area
Master Mass
Slave Mass
GCY7
(0.1~7) MPa
0.5MPa/kg
0.2cm2
14kg
14kg
GCY20
(0.1~20) MPa
1 MPa/kg
0.1cm2
20kg
20kg
GCY60
(0.1~60) MPa
2 MPa/kg
0.05cm2
30kg
30kg
SPECIFICATION
Accuracy:0.01%rd for gauge pressure by using single piston, or it is (2Pa + 5x10-7P + 1x10-4△P) for differential pressure buy using dual pistons together
Piston material: Tungsten carbide
Cylinder material: Tungsten carbide
Mass material: 304 stainless steel
Hydraulic base material: Aluminum alloy
Seal material:Buna-N, FTM, PTFE, Copper Alloy
Medium: Pure Nitrogen (≤20MPa), Sebacate (60MPa)
Gravity:Standard 9.80665 m/s², or customize local gravity.
Pressure units available: MPa, bar, psi (optional)
Pressure connector: Metric (NPT and BSP is optional)
Base dimension: 540 mm (H) x 625 mm (L) x 480 mm (D)
