PDF《Operating Instructions》

Operating Instructions 操作说明书 Pressure Balance GB 压力天平 CN CPB

5000 Pressure Balance CPB

5000 CPB

5000 压力天平 Pressure Balance CPB

5000 GB GB Operating Instructions Pressure Balance Page

4 -

39 CN 压力天平操作说明书 第40 -

77 页Information This symbol provides you with information, notes and tips.

Warning! This symbol warns you against actions that can cause injury to people or damage to the instrument. WIKA Operating Instructions Pressure Balance Version 3.1

2 Pressure Balance CPB

5000 GB C Co on nt te en nt ts s 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 Factors at work

8 2.3.1 Local fluctuations in the gravity-value.8 2.3.2 Temperature (Piston/Cylinder)9 2.3.3 Ambient conditions

9 2.3.4 How the cross-sectional surface responds to pressure

10 2.4 Arrangement of control elements

10 2.4.1 Pneumatic low-pressure base

11 2.4.2 Pneumatic high-pressure / vacuum base

12 2.4.3 Hydraulic base

13 3. Commissioning and Operation

14 3.1 Preparation

14 3.1.1 Setting up the Device

14 3.1.1.1 Instructions for pneumatic high-pressure / vacuum version

14 3.1.1.2 Instructions for pneumatic version with integrated gas to oil separator

14 3.1.1.3 Instructions for hydraulic version

15 3.1.2 Installing the ConTect System

16 3.1.2.1 Connection for piston/cylinder system with M30 x

2 female thread

16 3.1.2.2 Connection for piston/cylinder system with ConTect quick connector

17 3.1.2.3 Vacuum piston/cylinder system

18 3.1.2.4 Connection for piston/cylinder system with integrated separator, M30 x

2 female thread ......

19 3.1.3 Connecting the test specimen

20 3.1.4 Venting the System (Hydraulic Design only)20 3.2 Operation

21 3.2.1 Weight Pieces

21 3.2.2.1 Approaching the pressure value C hydraulic base

22 3.2.2.2 Approaching the pressure value C pneumatic low-pressure base

22 3.2.2.3 Approaching the pressure value C pneumatic high-pressure / vacuum base

23 3.2.2.4 Approaching the pressure value C pneumatic version with separator

23 3.2.3 Pressure stable

23 3.2.4 Next pressure level

24 3.2.5 Vacuum operation

24 3.2.5.1 Weight pieces for vacuum

24 3.2.5.2 Approaching the vacuum values

25 3.2.5.3 Vacuum stable

25 3.2.5.4 Next vacuum level

25 3.2.6 Releasing pressure C hydraulic, pneumatic and vacuum

25 WIKA Operating Instructions Pressure Balance Version 3.1

3 Pressure Balance CPB

5000 GB 3.3 Disassembly

26 4. Troubleshooting measures

27 5. Maintenance and Care

28 5.1 Cleaning

28 5.1.1 Piston/Cylinder system

28 5.1.1.1 Hydraulic piston/cylinder system

28 5.1.1.2 Pneumatic piston/cylinder system

30 5.1.2 Weight Set

31 5.2 Wear Parts

31 5.3 Changing the Hydraulic Oil (Hydraulic Design only)32 5.3.1 Removing Hydraulic Oil

32 5.3.2 Filling in of Hydraulic Oil

32 5.3.3 Venting of the System (after Complete Filling only)32 5.4 Recalibration

33 6. Specifications

34 7. Tables of masses.37 7.1 Hydraulic models

37 7.2 Pneumatic models

38 8. Accessories.39 WIKA Operating Instructions Pressure Balance Version 3.1

4 Pressure Balance CPB

5000 GB 1. General 1.1 General Instructions In the following chapters detailed information on the CPB

5000 pressure balance and its proper use can be found. Should you require further information, or should there be problems which are not dealt within detail in the operating instructions, please contact the address below: WIKA Alexander Wiegand SE &

Co. KG Alexander Wiegand Strasse D-63911 Klingenberg Tel: +49-(0)9372/132-473 Fax: +49-(0)9372/132-8767 E-Mail: calibration@wika.de If nothing to the contrary is agreed, the pressure balance is calibrated in compliance with the currently valid body of international regulations and can be referred directly to a national standard. The warranty period for the pressure balance is

24 months according to the general terms of supply of ZVEI. The guarantee is void if the appliance is put to improper use or if the operating instructions are not observed or if an attempt is made to open the appliance or to release attachment parts or the tubing. We also point out that the content of these operating instructions neither forms part of an earlier or existing agreement, assurance or legal relationship nor is meant to change these. All obligations of WIKA Alexander Wiegand SE &

Co. KG result from the respective sales contract and the general business terms of WIKA Alexander Wiegand SE &

Co. KG. WIKA is a registered trade mark of WIKA Alexander Wiegand SE &

Co. KG. Names of companies or products mentioned in this handbook are registered trade marks of the manufacturer. The devices described in this manual represent the latest state of the art in terms of their design, dimension and materials. We reserve the right to make changes to or replace materials without any obligation to give immediate notification. Duplication of this manual in whole or in part is prohibited. ?

2010 Copyright WIKA Alexander Wiegand SE &

Co. KG. All rights reserved. WIKA Operating Instructions Pressure Balance Version 3.1

5 Pressure Balance CPB

5000 GB 1.2 Safety Instructions Read these operating instructions carefully prior to operating the pressure balance CPB 5000. Its trouble-free operation and reliability cannot be guaranteed unless the safety advise given in this manual is followed when using the device. 1. The system must only be operated by trained and authorised personnel who know the manual and can work according to them. 2. Trouble-free operation and reliability of the device can only be guaranteed so long as the conditions stated under Setting up the device are taken into consideration. 3. The CPB

5000 always has to be handled with the care required for an precision instrument (protect from humidity, impacts and extreme temperatures). The device, the piston-cylinder-system and the mass-set must be handled with care (don'

t throw, hit, etc.) and protect them from contamination. By no means apply any force to the operating elements of the CPB 5000. 4. If the device is moved from a cold to a warm environment, you should therefore ensure the device temperature has adjusted to the ambient temperature before trying to put it into operation. 5. If the equipment is damaged and might no longer operate safely, then it should be taken out of use and securely marked in such a way so that isn'

t used again. Operator safety may be at risk if: There is visible damage to the device The device is not working as specified The device has been stored under unsuitable conditions for an extended period of time. If there is any doubt, please return the device to the manufacturer for repair or maintenance. 6. Customers must not attempt to alter or repair the device themselves. If the instrument is opened or attachment parts or the tubing are released, its trouble-free operation and reliability is impaired and endangers the operator. Please return the device to the manufacturer for any repair or maintenance. 7. There must be used only the original sealings in the device. 8. Any operation not included in the following instructions or outside the specifications must not be attempted. WIKA Operating Instructions Pressure Balance Version 3.1

6 Pressure Balance CPB

5000 GB 2. Product Description 2.1 General Product Information Application Pressure balances are the most accurate instruments for the calibration of electronic or mechanical pressure measuring instruments. The direct measurement of pressure, according to its definition as a quotient of force and area, and the use of high-quality materials result in small uncertainties of measurement and an excellent long-term stability of five years. For these reasons pressure balances have already been used in calibration laboratories of industry, national institutes and research labs for many years. Due to the integrated pressure generation and the purely mechanical measuring principle the CPB

5000 is also ideally suited for on-site use as well as service and maintenance purposes. Piston/cylinder measuring system Pressure is defined as a quotient of force and area. Correspondingly, the core of the CPB

5000 is a very precisely manufactured piston/cylinder system. Both the piston and cylinder are manufactured from Tungsten Carbide and are very well protected in a solid stainless steel housing against touching, impacts or contamination from outside. As a standard the connection of the piston/cylinder system is a M30 x

2 male thread. The patented ConTect quick connector is available as an option. It allows a quick and safe change of the measuring range without the need for tools. Thus it is possible to set up a compact complete system at a favourable price, consisting of an universal instrument base and up to

3 ConTect piston/cylinder systems with different measuring ranges with only one weight set. The pneumatic piston/cylinder systems are available for vacuum and pressure ranges from

2 bar up to

100 bar resp.

30 psi up to

1500 psi and the hydraulic systems are available for pressure ranges from

60 bar up to

1000 bar resp.

1000 psi up to

14500 psi. The accuracy is 0.015 % (optional also 0.008 %) of reading. The entire construction design of the piston/cylinder unit and the very precise manufacturing of the piston and the cylinder stand for excellent operating characteristics with a long free rotation time and low fall rates and for a very high long term stability. Therefore the recommended re-calibration interval is

5 years. Functioning Depending on the measuring range of the device under test you can fit the instrument basement with the corresponding system. In order to generate the individual test points, the piston cylinder system is weighted with mass-loads. The weight applied is proportional to the desired pressure and provided by using optimally graduated weights. These weights are manufactured to standard gravity (9.80665 m/s?) although for fixed location usage they can be adjusted to a customer specified local gravity. Depending on the instrument version the pressure is set either via an integrated pump or via external pressure supply by the use of control valves. For fine adjustment an adjustable volume with precision spindle is available. As soon as the measuring system reaches equilibrium, there is a balance of forces between pressure and wheel weights. Due to the high-grade quality of the system this pressure remains stable over several minutes, so that for instance adjustments of your device under test can b........