Fluke P3800 Series Bedienungsanleitung

PN 3952319

November 2010

All product names are trademarks of their respective companies.

P3800 Series

High Pressure Hydraulic Deadweight Tester

Users Manual

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176

TestEquipmentDepot.com

Table of Contents

Chapter Title Page

1 General Information ............................................................................ 1-1

Introduction........................................................................................................ 1-1

How to Contact Fluke ........................................................................................ 1-1

Safety Information ............................................................................................. 1-2

Symbols Used in this Manual ............................................................................ 1-2

Hydraulic Circuit Schematic.............................................................................. 1-3

2 Preparation .......................................................................................... 2-1

Location ............................................................................................................. 2-1

Fluid Filling ....................................................................................................... 2-1

3 Operation ............................................................................................. 3-1

Connections ....................................................................................................... 3-1

Procedure for Removing Trapped Air from System.......................................... 3-2

Procedure for Priming the Pressure Intensifier.................................................. 3-4

Procedure for Generating System Pressure........................................................ 3-5

Generating Calibration Pressure ........................................................................ 3-6

4 Maintenance......................................................................................... 4-1

Introduction........................................................................................................ 4-1

PCU Removal .................................................................................................... 4-1

Cleaning............................................................................................................. 4-2

Replacement....................................................................................................... 4-3

5 Recalibration........................................................................................ 5-1

Introduction........................................................................................................ 5-1

Do's and Don'ts .................................................................................................. 5-1

Don'ts............................................................................................................. 5-1

Do's................................................................................................................ 5-1

6 Pressure Corrections.......................................................................... 6-1

Introduction........................................................................................................ 6-1

P3800 Series

Users Manual

Temperature and Gravity Corrections ............................................................... 6-2

iii

List of Tables

Table Title Page

1-1. Symbols.................................................................................................................. 1-2

P3800 Series

Users Manual

List of Figures

Figure Title Page

1-1. Hydraulic Circuit Schematic .................................................................................. 1-3

3-1. Pressure Connection - Method 1 ............................................................................ 3-1

3-2. Pressure Connection - Method 2 ............................................................................ 3-2

3-3. Remove Trapped Air.............................................................................................. 3-2

3-4. Turn Capstan Fully Clockwise............................................................................... 3-3

3-5. Prime the Pressure Intensifier ................................................................................ 3-4

3-6. Generate System Pressure ...................................................................................... 3-5

3-7. Close Reserve Valve .............................................................................................. 3-6

3-8. 5 Correct Float Position ......................................................................................... 3-7

4-1. Piston/Cylinder Removal ....................................................................................... 4-2

6-1. Pressure Corrections............................................................................................... 6-2

6-2. Nomogram for Finding the Value of...................................................................... 6-3

P3800 Series

Users Manual

1-1

Chapter 1

General Information

Introduction

This manual contains operation and routine and preventive maintenance instructions for

the Model P3830, P3840, and P3860 High Pressure Hydraulic Deadweight Tester (DWT)

manufactured by Fluke. This section of the manual provides general information about

the DWT.

The P3800 Series of Deadweight Testers (DWT) provides a convenient means of testing

high pressure instruments for calibration accuracy.

The design incorporates the “Piston Gauge” principle, in which an applied pressure

within the system, balances a known mass applied to a piston of known effective area. i.e.

pistonofareaEffective

pistontoappliedmassTotal

PRESSURE =

The unit comprises a base plate onto which is mounted a high pressure manifold, a

piston/cylinder unit (PCU), a test station (to mount the equipment under test), a fluid

reservoir, a ram screw pressure generating system, a pressure intensifier (which increases

the pressure generated by a factor of 7:1), and a safety relief valve (which protects both

the low and high pressure systems from accidental overpressure). The whole assembly is

contained within a strong GRP housing.

The unit is equipped with four adjustable feet to enable correct leveling. This ensures that

the PCU is in the vertical plane, which is essential for both accurate and reliable

performance.

The hydraulic fluid supplied with the unit has been specially formulated to remain fluid at

high pressures and to ensure no corrosion of internal parts. In addition the fluid will not

oxidize in contact with air or emulsify or mix with water.

P3800 Series

Users Manual

1-2

Safety Information

WWarning

Pressurized vessels and associated equipment are potentially

dangerous. The apparatus described in this manual should be

operated by personnel trained in procedures that will assure

safety to themselves, to others, and to the equipment.

WWarning

Please read these instructions carefully prior to installing and

using the Tester. The pressure built up internally during use

can be extremely high. Ensure that all connections are made

correctly.

DO NOT CONNECT DWT TO EXTERNAL PRESSURE SOURCE

Symbols Used in this Manual

In this manual, a Warning identifies conditions and actions that pose a hazard to the

user. A Caution identifies conditions and actions that may damage the Deadweight

Tester (DWT).

Symbols used on the Deadweight Tester (DWT) and in this manual are explained in

Table 1-1.

Table 1-1. Symbols

Symbol Description

JEarth Ground

WImportant Information: refer to manual

~Do not dispose of this product as unsorted

municipal waste. Go to Fluke’s website for

recycling information.

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