GE PACE5000 Gebrauchs- und Pflegehandbuch

Digital Solutions

Pressure Automated Calibration Equipment

Calibration manual - K0450 Revision B

PACE5000

PACE6000

PACE1000

change without notice. GE is a registered trademark of General Electric Company. Other

company or product names mentioned in this document may be trademarks or registered

trademarks of their respective companies, which are not affiliated with GE.

PACE Series Calibration Manual

[EN] English i K0450 Revision B

Introduction

This technical manual provides calibration instructions for the PACE Pressure Controllers and

Indicators.

The features shown and described in this manual may not be available on some models.

Safety

The manufacturer has designed this equipment to be safe when operated using the

procedures detailed in this manual. Do not use this equipment for any other purpose than

that stated.

This publication contains operating and safety instructions that must be followed to ensure

safe operation and to maintain the equipment in a safe condition. The safety instructions are

either warnings or cautions issued to protect the user and the equipment from injury or

damage.

Use suitably qualified* calibration technicians and good engineering practice for all

procedures in this publication.

Pressure

Do not apply pressures greater than the maximum working pressure to the equipment. It is

the responsibility of the calibration technician to apply pressures within the published

pressure range and to only use external pressure equipment with correctly rated fittings and

components.

Toxic Materials

There are no known toxic materials used in construction of this equipment.

Maintenance

The equipment must be correctly maintained, the manufacturer’s procedures should be

carried out by authorized service agents or the manufacturer’s service departments.

Technical Advice

For technical advice contact the manufacturer.

* A qualified calibration technician must have the necessary technical knowledge,

documentation, special calibration/test equipment and tools to carry out the required work

on this equipment.

K0450 Revision B ii [EN] English

Abbreviations

The following abbreviations are used in this manual; the abbreviations are the same in the

singular and plural.

abs Absolute

a.c. Alternating current

ALT Altitude

BSP British pipe thread

CAS Calculated airspeed

CSK Countersunk

d.c. Direct current

DPI Digital Pressure Instrument

e.g. For example

etc. And so on

Fig. Figure

ft Foot

g Gauge

Hg Mercury

HTS High tensile steel

Hz Hertz

IAS Indicated airspeed

i.e. That is

IEC International Electrotechnical Commission

IEEE 488 Institute of Electrical and Electronic Engineers standard 488 data

in Inch

kg Kilogram

kts/kn knot

LCD Liquid crystal display

m Metre

mA Milliampere

max Maximum

mbar Millibar

min Minute or minimum

mm Millimetre

mV Millivolts

MWP Maximum working pressure

No. Number

NPT National Pipe Thread

PACE Pressure Automated Calibration Equipment

Para. Paragraph

PDCR Pressure transducer

PED Pressure Equipment Directive

psi Pounds per square inch

PTX Pressure transmitter

ROC Rate of Climb

RS232 Serial communications data standard

RtCAS Rate of calculated airspeed

PACE Series Calibration Manual

[EN] English iii K0450 Revision B

Associated Publications

K0447 PACE5000/6000 User Guide and Safety Instructions

K0467 PACE1000 Indicator User Guide and Safety Instructions

K0443 PACE5000/6000 Controller User Manual

K0470 PACE1000 Indicator User Manual

K0476 Pressure Control Module User Guide and Safety Instructions

K0472 SCPI Communications Manual

K0469 Heritage Communications Manual - Instrument Emulation

Symbols

RtMach Rate of Mach

SCPI Standard Commands for Programmable Instruments

UUT Unit under test

V Volts

VFC Volts-free contact

+ve Positive

-ve Negative

°C Degrees Celsius

This equipment meets the requirements of all relevant European safety directives.

The equipment carries the CE mark.

This symbol, on the equipment, indicates that the user should read the user

manual.

This symbol, on the equipment, indicates a warning and that the user should refer

to the user manual.

Ce symbole, sur l’instrument, indique que l’utilisateur doit consulter le manuel

d’utilisation. Ce symbole, dans le manuel, indique une situation dangereuse.

This symbol warns the user of the danger of electric shock.

Ce symbole alerte l’utilisateur sur le danger de choc électrique.

Do not dispose of this product as household waste. Use an approved organisation

that collects and/or recycles waste electrical and electronic equipment. For more

information, contact one of these:

- Our customer service department: www.gemeasurement.com

- Your local government office.

K0450 Revision B iv [EN] English

WARNINGS

TURN OFF THE SOURCE PRESSURE(S) AND CAREFULLY VENT THE PRESSURE LINES BEFORE

DISCONNECTING OR CONNECTING THE PRESSURE LINES. PROCEED WITH CARE.

ONLY USE EQUIPMENT WITH THE CORRECT PRESSURE RATING.

BEFORE APPLYING PRESSURE, EXAMINE ALL FITTINGS AND EQUIPMENT FOR DAMAGE.

REPLACE ALL DAMAGED FITTINGS AND EQUIPMENT. DO NOT USE ANY DAMAGED

FITTINGS AND EQUIPMENT.

DO NOT EXCEED THE MAXIMUM WORKING PRESSURE OF THE INSTRUMENT.

THIS EQUIPMENT IS NOT RATED FOR OXYGEN USE.

THE GROUND LEAD OF THE INSTRUMENT MUST BE CONNECTED TO THE AC SUPPLY

PROTECTIVE SAFETY GROUND.

ISOLATE THE POWER SUPPLY BEFORE MAKING ANY ELECTRICAL CONNECTIONS TO THE

REAR PANEL.

PACE Series Calibration Manual

[EN] English v K0450 Revision B

Pressure Units and Conversion Factors

Unit Conversion

To convert FROM pressure VALUE 1 in pressure UNITS 1 TO pressure VALUE 2 in pressure

UNITS 2, calculate as follows:

Note: The PACE instrument contains selectable pressure units and user defined units. Use the

conversion factors to calculate a user defined unit from the table above. Refer to the

data sheets for the list of selectable pressure units.

Pressure units Factor (hPa) Pressure units Factor (hPa)

mbar 1.0 cmH2O @ 20°C 0.978903642

bar 1000.0 mH2O @ 20°C 97.8903642

Pa (N/m2)0.01 kg/m20.0980665

hPa 1.0 kg/cm2980.665

kPa 10.0 torr 1.333223684

MPa 10000.0 atm 1013.25

mmHg @ 0°C 1.333223874 psi 68.94757293

cmHg @ 0°C 13.33223874 lb/ft20.4788025898

mHg @ 0°C 1333.223874 inH2O @ 4°C 2.4908891

inHg @ 0°C 33.86388640341 inH2O @ 20°C 2.486413

mmH2O @ 4°C 0.0980665 inH20 @ 60°F 2.487641558

cmH2O @ 4°C 0.980665 ftH2O @ 4°C 29.8906692

mH2O @ 4°C 98.0665 ftH2O @ 20°C 29.836983

mmH2O @ 20°C 0.097890364 ftH20 @ 60°F 29.8516987

VALUE 2 VALUE 1 FACTOR 1

FACTOR 2

----------------------

=

K0450 Revision B vi [EN] English

Table of Contents

1 Introduction......................................................................................................................................................1

2 Calibration Status..........................................................................................................................................1

3 Calibration Equipment ................................................................................................................................1

4 Preliminary Operations...............................................................................................................................1

5 Notes on Calibration ....................................................................................................................................1

5.1 PACE Controller Connection .........................................................................................................2

Gauge Reference...............................................................................................................................2

5.2 PACE Indicator Connection...........................................................................................................3

Gauge Reference...............................................................................................................................3

6 Calibration Check (All Ranges).................................................................................................................4

6.1 Procedure..............................................................................................................................................4

7 Calibration Adjustment...............................................................................................................................5

Appendix A PACE Menus and Screens..................................................................................................6

A.1 PACE Controller Menus ...................................................................................................................6

A.2 PACE Controller Screens.................................................................................................................7

A.3 PACE Indicator Menus .....................................................................................................................8

A.4 PACE Indicator Screens ..................................................................................................................9

PACE Series Calibration Manual

[EN] English 1 K0450 Revision B

1 Introduction

The PACE controller incorporates a calibration facility; for the PACE to stay accurate, a

calibration check should be carried out at chosen intervals. If the accuracy of the PACE is not

within the permissible deviation, carry out a calibration adjustment.

2 Calibration Status

Using the Measured Pressure/Instrument Status menu, the calibration status of the

calibrator can be displayed on the front panel screen. The status menu includes Calibration

History which gives a list of dates of the stored calibration corrections.

Note: The Date and Time must be set correctly using the Measured Pressure/Global Set-up/

Calibration menu.

3 Calibration Equipment

The original GE Calibration Certificate shows the measurement uncertainty of the original

calibration standard. To preserve uncertainty of the PACE calibration, checks and

adjustments must be performed using a calibrator uncertainty of less than or equal to the

original calibration standard.

4 Preliminary Operations

Review and become familiar with the whole procedure before beginning a calibration

process. Allow at least one hour for the PACE to thermally stabilize in a thermally stable

environment after switching on and before calibration.

Before starting a calibration procedure:

Carry out a leak test as detailed in PACE user manual K0443.

5 Notes on Calibration

The pressure standard output port and the reference

level must be at the correct level or use height-

corrected applied pressure.

To prevent applied calibration pressure “back feed” in

PACE controllers, fit blanking plugs to both positive and

negative supply ports on the manifold.

Set the PACE units of pressure to one of the required units for calibration.

Reference

Level

K0450 Revision B 2 [EN] English

5.1 PACE Controller Connection

WARNING

ON COMPLETION OF CALIBRATION, OPEN THE ON/OFF VALVE TO VENT TRAPPED

PRESSURE FROM THE SUPPLY + PORT TO ATMOSPHERE.

Connect the calibrator for each pressure range as follows:

Connect the output of the pressure standard to the PACE module output port.

Fit an on/off valve to the supply + input of the PACE controller. Leave the other side of the

valve open to atmosphere. Turn the valve to the closed position.

Gauge Reference

If the pressure standard has a reference connection, then connect this to the PACE reference

port on the module manifold. Otherwise the calibrator reference port should be open to

atmosphere.

Note: Module 2 reference port open to atmosphere or to reference port of the pressure

standard.

Note: Optimum performance is achieved by connecting the PACE reference port to the

pressure standard.

SUPPLY OUTLET VENT REF

Module 2

SUPPLY OUTLET VENT REF

Module 1

PACE Controller

Rear view of

instrument

Pressure Standard

On/off valve fitted to supply +

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