Text version of the page

Deadweight Testerfor Differential Pressure Calibration

Deadweight Tester for Differential Pressure LR-Cal CPB5000-DP - 14053 CPB5000-DP

Working principle: Operation: First step is to apply the pressure. ATTENTION - the line pressure can be a lot higher than the differential pressure(for example 2 bar differential at 50 bar line pressure). Therefore a smooth and even pressure increasement is veryimportant. Otherwise the device under test can be destroyed. Via the Bypass-valve, a shortcut between the two pressure-systems can be generated. So both ports change with the same pressure-rate. The use of each system is comparable to the common basic version CPB5000. Therefore also see that manual forfurther descriptions about handling.• Open Bypass-Valve. • Load the differential piston with the required masses (for static line pressure).• Load the static piston with the required masses (for static line pressure).• Pneumatic systems: use the valves to set the pressure; hydraulic systems: use the spindle pump to set the pressure. • For fine adjustment use the spindle pump.• Now, both systems should be in floating position.If both systems float and spin, the device under test is applied to a zero pressure (Note, but each port has an additional line pressure!).The sink rate of the two systems should be comparable. Otherwise add some trim-masses atthe static piston.After setting of line pressure, the differential pressure can be added to the system. Now the two pressure systems are separated; therefore: • Close Bypass-Valve• Load masses for differential pressure on diff.-piston (included the line pressure).• Use the valves resp. spindle pump to set new pressure. • Verify free spinning of static piston and if necessary, adapt with spindle pump.As soon as both systems are floating, the pressure value at the device under test is stable and can be veified.After the calibration, check the zero-pressure (differential): • Open Bypass-Valve• Both pressure ports are in balance again.• Vent the system with the outlet-valve. Because of the shortcut between the two systems (via bypass-valve) both ports change with same pressure rate now. ATTENTION - If the pressure decreasement is unequal, the test specimen could be destroyed. Available Pressure Ranges: ExecutionRange [bar]Range [psi]ExecutionRange [bar]Range [psi]hydraulic0.2 ... 60pneumatic0.435 ... 30hydraulic0.2 ... 1002.9 ... 1000 pneumatic0.03 ... 22.9 ... 150hydraulic1 ... 25014.5 ... 5000 pneumatic0.2 .. 105.8 ... 500hydraulic1 ... 40029 ... 10000 pneumatic0.4 ... 505.8 ... 1000hydraulic2 ... 60029 ... 10000 pneumatic0.4 ... 1005.8 ... 1500hydraulic2 ... 100029 ... 15000 DRUCK & TEMPERATUR Leitenberger GmbH Bahnhofstr. 33 D-72138 Kirchentellinsfurt GermanyTel.: +49 - 71 21 - 9 09 20 - 0 Fax: +49 - 71 21 - 9 09 20 - 99E-Mail: DT-Export@Leitenberger.de http://www.druck-temperatur.de
Technische Änderungen vorbehalten. Freibleibend (Rel. 090107) All technical modifications reserved. Without engagement