Fluke RUSKA 2470 User Manual

PN 3974971 December 2010 © 2010 Fluke Corporation. All rights reserved. Printed in USA. Specifications are subject to change without notice. All prod

RUSKA 2470 Users Manual 1-2 Lubricants and Seals DO NOT use hydrocarbon lubricants in this device, use only approved lubricants. Always use replacem

Introduction Specifications 1 1-3 Specifications Low Range Piston Pressure Range (Model 2465) 1.4 to 172 kPa (0.2 to 25 psi) psi gauge Pressur

RUSKA 2470 Users Manual 1-4 Temperature Range Operating 18 ºC to 28 ºC Storage -40 ºC to 70 ºC when thermometer and low range piston & Cylind

2-1 Chapter 2 General Piston Pressure Gauge Considerations Types of Piston Pressure Gauges The piston pressure gauge is sometimes regarded as an absol

RUSKA 2470 Users Manual 2-2 SECONDARYPRESSUREPRESSURE IN glg45.eps Figure 2-3. Controlled Clearance Cylinder When the simple cylinder of 2-1 is subjec

General Piston Pressure Gauge Considerations Calculations 2 2-3 Measurement of pressure with the piston pressure gauge is subject to uncertaintie

RUSKA 2470 Users Manual 2-4 Elastic Distortion of the Cylinder As the pressure is increased within a piston pressure gauge, the resulting stress produ

General Piston Pressure Gauge Considerations Measurement of Pressure with the Piston Pressure Gauge 2 2-5 Although the trend is swinging toward t

RUSKA 2470 Users Manual 2-6 It is common practice to associate this position directly with the piston as the datum to which all measurements made with

General Piston Pressure Gauge Considerations Measurement of Pressure with the Piston Pressure Gauge 2 2-7 glg03.bmp Figure 2-5. Head Correction

LIMITED WARRANTY AND LIMITATION OF LIABILITY Each Fluke product is warranted to be free from defects in material and workmanship under normal use a

RUSKA 2470 Users Manual 2-8 For good work, a piston pressure gauge should be provided with an index mark for associating the reference of the piston w

General Piston Pressure Gauge Considerations Measurement of Pressure with the Piston Pressure Gauge 2 2-9 6. Johnson, D. P., and D. H. Newhall,

RUSKA 2470 Users Manual 2-10

3-1 Chapter 3 Description General Information The RUSKA Gas Lubricated Piston Pressure Gauge, model 2470 is a pneumatic pressure standard designed for

RUSKA 2470 Users Manual 3-2 Description of the Mass Set All masses of the Mass Set as supplied with this gauge are made of non-magnetic, austenitic (s

Description Description of the Gauge Base 3 3-3 gmq05.bmp Figure 3-2. Base with 2468 P/C Installed

RUSKA 2470 Users Manual 3-4

4-1 Chapter 4 Installation Introduction The gauge should be installed in a room where the temperature is maintained between 18 ºC to 28 ºC. The actua

RUSKA 2470 Users Manual 4-2 4. Mount the FPIs (Float Position Sensors) to the blocks, orient the FPI sensors such that their cables are trail away fr

Installation Introduction 4 4-3 gmq07.eps Figure 4-2. Plumbing and Recommended Ancillary Equipment

i Table of Contents Chapter Title Page 1 Introduction ... 1

RUSKA 2470 Users Manual 4-4

5-1 Chapter 5 Operation Precautions 1. Do not over pressure the piston 2. Do not increase or decrease the pressure in the gauge rapidly. Always use

RUSKA 2470 Users Manual 5-2 General The cross-section drawings of the Gauge found in Figures 5-1, 5-8 and 5-12 will aid in identifying and assembling

Operation Low Range Piston Assembly 5 5-3 gmq09.bmp Figure 5-1. Section View, Low Range Piston/Cylinder

RUSKA 2470 Users Manual 5-4 Filter24-580Lower ThrustBearing2460-4-25Cylinder Upper ThrustBearing2460-5-6FilterRetainer2460-4-27O-ring54-703-119PistonU

Operation Low Range Piston Assembly 5 5-5 gmq12.bmp Figure 5-4. Removing Low Range Piston and Cylinder from Container - Step 2 gmq13.bmp Figure

RUSKA 2470 Users Manual 5-6 gmq14.bmp Figure 5-6. Low Range Piston and Cylinder Showing O-Ring Groove 5. When screwing the Retaining Cap (2460-4-7)

Operation Mid Range Piston Assembly 5 5-7 8. Install the weight adapter (P/N 2465-2470-736) to the top of the low range piston cylinder. Take ca

RUSKA 2470 Users Manual 5-8 gmq16.bmp Figure 5-8. Section View, Mid Range Piston/Cylinder

Operation Mid Range Piston Assembly 5 5-9 FilterLowerThrustBearingFilterRetainer2460-4-27O-Rings54-703-119LowerCylinderSpacer2460-70-3Piston/Cyli

RUSKA 2470 Users Manual ii Precautions... 5-1 G

RUSKA 2470 Users Manual 5-10 Upper ThrustBearing 2460-21PistonCylinderRetaining Nut(Thrust Block) gmq19.eps Figure 5-11. Retaining Nut and Bearing Hig

Operation High Range Piston Assembly 5 5-11 When working at high pressures (over 100 psi), or after reducing a high pressure to a lower pressure,

RUSKA 2470 Users Manual 5-12 gmq21.bmp Figure 5-13. Parts Required for High Range Piston Operation gmq22.bmp Figure 5-14. Always Use Two Hands to Ca

Operation Establishing Pressure 5 5-13 gmq23.bmp Figure 5-15. Order of Installation Establishing Pressure Gauge Pressures Pressure should be adm

RUSKA 2470 Users Manual 5-14 gmq08.bmp Figure 5-16. Float Position When the piston is floating and rotating slowly (suspended on a gas cushion betwee

Operation Maintenance of the Gauge 5 5-15 • WinPrompt® provides simplicity and efficiency combined with accuracy and consistency in pressure gen

RUSKA 2470 Users Manual 5-16

6-1 Chapter 6 Piston / Cylinder Cleaning Instructions General Information and Preparation When it is necessary to clean the Piston/Cylinder Assembly,

RUSKA 2470 Users Manual 6-2 Being forewarned of the hazards, the technician should wipe the bench and all instrument surfaces in the vicinity of the P

Piston / Cylinder Cleaning Instructions Cleaning the Low Range Piston/Cylinder Assembly 6 6-3 5. Prepare additional wipers as necessary for dryi

iii List of Tables Table Title Page 1-1. Symbols...

RUSKA 2470 Users Manual 6-4 gmq25.bmp Figure 6-2. Preparations for Cleaning the Low Range Cylinder gmq26.bmp Figure 6-3. Preparing the Kim-Wipes - S

Piston / Cylinder Cleaning Instructions Cleaning the Low Range Piston/Cylinder Assembly 6 6-5 gmq27.bmp Figure 6-4. Preparing the Kim-Wipes - St

RUSKA 2470 Users Manual 6-6 gmq29.bmp Figure 6-6. Preparing the Low Range Cleaning Tool - Step 2 Mid Range Piston/Cylinder Cleaning supplies (see Fig

Piston / Cylinder Cleaning Instructions Mid Range Piston/Cylinder 6 6-7 gmq31.bmp Figure 6-8. Preparing the Mid Range Cleaning Tool 1. Prepare

RUSKA 2470 Users Manual 6-8 16. If lint becomes a problem a clean dry gas source can be used to blow the lint off of the parts prior to assembly. 17.

Piston / Cylinder Cleaning Instructions Cleaning the High Range Piston/Cylinder Assembly 6 6-9 5. Pre-clean the piston and cylinder using solven

RUSKA 2470 Users Manual 6-10 gmq33.bmp Figure 6-10. Preparing the Kim Wipe for Cleaning the High Range Cylinder - Step 1 gmq34.bmp Figure 6-11. Prep

Piston / Cylinder Cleaning Instructions Cleaning the High Range Piston/Cylinder Assembly 6 6-11 gmq35.bmp Figure 6-12. Preparing the Kim Wipe fo

RUSKA 2470 Users Manual 6-12 gmq37.bmp Figure 6-14. Drying the High Range Cylinder

A-1 Appendix A Explanation of "Pressure Calculation Worksheet" Introduction See Tables at the end of this appendix. These tables may be used

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RUSKA 2470 Users Manual A-2 All of the calculations will be performed to this expected temperature ( t ). A final trim would be calculated to adjust t

Explanation of "Pressure Calculation Worksheet" Introduction A A-3 For SI Units: ()[]bagKρρ/1/112−= where: 1g = acceleration du

RUSKA 2470 Users Manual A-4 I. Column 5 is the pressure required at the reference plane of the piston pressure gauge to produce the desired pressure

Explanation of "Pressure Calculation Worksheet" Introduction A A-5 O. Column 11, the remainder from Column 10, is the mass that must b

RUSKA 2470 Users Manual A-6

A-7 PISTON PRESSURE GAUGE PRESSURE CALCULATION WORKSHEET (ENGLISH UNITS) Date Expe

RUSKA 2470 Users Manual A-8

A-9 PISTON PRESSURE GAUGE PRESSURE CALCULATION WORKSHEET (SI UNITS) Date Expected Temperature, (t) oC Refe

RUSKA 2470 Users Manual A-10

B-1 Appendix B Equation A-4 — Air Density Equation A-4 — Air Density Air Density (AIRP ) in units of g/cm3, is calculated as follows; ()()()()()texUxP

v List of Figures Figure Title Page 2-1. Simple Cylinder ...

RUSKA 2470 Users Manual B-2 Nitrogen Density — SI Units (0 to 6.9 MPa) To calculate the density of Nitrogen at pressures from 0.01 MPa gauge to 6.9 MP

Equation A-4 — Air Density Conversion Factors B B-3 Conversion Factors Table B-1. Conversion Factors To Convert From To Multiply By Pa N/m2 1 N

RUSKA 2470 Users Manual B-4

C-1 Appendix C Glossary Glossary Ao Effective area of the piston/cylinder at zero pressure and at the reference temperature. Absolute Pressure meas

RUSKA 2470 Users Manual C-2 Density, Air Density of the air used to computer the buoyant effect of air on the masses. May be entered directly or com

Glossary Glossary C C-3 Head Height Vertical distance between reference planes. A positive value indicates the Device Under Test is higher than

RUSKA 2470 Users Manual C-4 Pressure Factor Correction for the effect of pressure on the area of the piston. Pressure Units: MPa Megapascals kPa

Glossary Glossary C C-5 SI Units: Pressure MPa Ao m2 b1 m2/m2/MPa b2 m2/m2/MPa2 c m2/m2/oC Mass kg Head Height cm Elevation m Lengt

RUSKA 2470 Users Manual C-6

RUSKA 2470 Users Manual vi 6-11. Preparing the Kim Wipe for Cleaning the High Range Cylinder - Step 2 ... 6-11 6-12. Preparing the Kim W

1-1 Chapter 1 IntroductionHow to Contact Fluke To order accessories, receive operating assistance, or get the location of the nearest Fluke distributo