WIKA Operating Instructions Pressure Balance Version 1.1
1. General .................................................................................................................................................... 5
1.1 General Instructions ............................................................................................................................... 5
1.2 Safety Instructions.................................................................................................................................. 6
2. Product Description ............................................................................................................................... 7
2.1 General Product Information ................................................................................................................. 7
2.2 Basic principle of the Pressure Balance ................................................................................................ 8
2.3 Environmental factors ............................................................................................................................ 9
2.3.1 Local fluctuations in gravity-value ...................................................................................................... 9
2.3.2 Temperature (Piston/Cylinder) ......................................................................................................... 10
2.3.3 Ambient conditions ........................................................................................................................... 10
2.3.4 How the cross-sectional area responds to pressure ........................................................................ 11
2.4 Arrangement of control elements ........................................................................................................ 11
2.4.1 Standard hydraulic base................................................................................................................... 12
2.4.2 High-pressure hydraulic base .......................................................................................................... 13
3. Commissioning and Operation ....................................................................................................... 14
3.1 Preparation .......................................................................................................................................... 14
3.1.1 Setting up the Device ....................................................................................................................... 14
3.1.2 Hydraulic pressure media used ........................................................................................................ 14
3.1.3 Installing the piston-cylinder system ................................................................................................ 15
3.1.3.1 Connection for piston-cylinder system with G3/4 B (male) thread ................................................ 16
3.1.3.2 Connection for piston-cylinder system with ConTect quick connector ......................................... 17
3.1.3 Connecting the device under test ..................................................................................................... 18
3.1.4 Venting the System .......................................................................................................................... 18
3.2 Operation ............................................................................................................................................. 19
3.2.1 Procedure for single-range piston-cylinder system 1,600 psi or 120 bar ......................................... 19
3.2.1.1 Mass loading ................................................................................................................................. 19
3.2.1.2 Approaching the pressure value ................................................................................................... 19
3.2.1.3 Pressure stable ............................................................................................................................. 19
3.2.2 Procedure for single-range piston-cylinder system 4,000 psi or 300 bar ......................................... 20
3.2.2.1 Mass load ...................................................................................................................................... 20
3.2.2.2 Approaching the pressure value ................................................................................................... 20
3.2.2.3 Pressure stable ............................................................................................................................. 20
3.2.3 Procedure for all dual-range piston-cylinder systems ...................................................................... 21
3.2.3.1 Mass load ...................................................................................................................................... 21
3.2.3.2 Approaching the pressure value ................................................................................................... 21
3.2.3.3 Pressure stable ............................................................................................................................. 21
3.2.4 Next pressure level ........................................................................................................................... 22
3.2.5 Releasing pressure .......................................................................................................................... 22
3.3 Disassembly ......................................................................................................................................... 23
4. Troubleshooting measures ................................................................................................................ 24
5. Maintenance and Care ........................................................................................................................ 25
5.1 Cleaning ............................................................................................................................................... 25
5.1.1 Piston-cylinder system ..................................................................................................................... 25
5.1.1.1 Procedure for single-range piston-cylinder system 1,600 psi or 120 bar ..................................... 26
5.1.1.2 Procedure for single-range piston-cylinder system 4,000 psi or 300 bar ..................................... 27
5.1.1.3 Procedure for all dual-range piston-cylinder systems ................................................................... 28
5.1.2 Mass set ............................................................................................................................................ 29