Model 755A

Instruction Manual

245364-V May 2002

TABLE OF CONTENTS

PREFACE...........................................................................................................................................

P-1

Definitions ...........................................................................................................................................

P-1

Intended Use Statement.....................................................................................................................

P-2

Safety Summary .................................................................................................................................

P-2

General Precautions For Handling And Storing High Pressure Gas Cylinders .................................

P-4

Documentation....................................................................................................................................

P-5

Compliances .......................................................................................................................................

P-5

1-0

DESCRIPTION AND SPECIFICATIONS..............................................................................

1-1

1-1

Overview................................................................................................................................

1-1

1-2

Oxygen Range on Front Panel Digital Display......................................................................

1-1

1-3

Oxygen Ranges for Recorder Readout .................................................................................

1-2

1-4

Recorder Voltage and Current Outputs.................................................................................

1-2

1-5

Automatic Pressure Compensation.......................................................................................

1-2

1-6

Options ..................................................................................................................................

1-2

 

a.

Alarm...............................................................................................................................

1-2

 

b.

Case Mounting................................................................................................................

1-2

 

c.

Electrical Power ..............................................................................................................

1-2

1-7

Specifications ........................................................................................................................

1-4

 

a.

General ...........................................................................................................................

1-4

 

b.

Sample ............................................................................................................................

1-4

 

c.

Electrical..........................................................................................................................

1-5

 

d.

Physical...........................................................................................................................

1-5

2-0

INSTALLATION ....................................................................................................................

2-1

2-1

Unpacking..............................................................................................................................

2-1

2-2

Location And Mounting..........................................................................................................

2-1

2-3

Voltage Requirements ...........................................................................................................

2-1

2-4

Electrical Connections ...........................................................................................................

2-1

 

a.

Line Power Connections .................................................................................................

2-1

 

b.

Recorder Connections ....................................................................................................

2-2

 

c.

Potentiometric Output .....................................................................................................

2-2

 

d.

Isolated Current Output (Optional)..................................................................................

2-4

 

e.

Output Connections for Dual Alarm Option ....................................................................

2-4

 

f.

Alarm Output Connections..............................................................................................

2-4

 

g.

Alarm Relay Characteristics............................................................................................

2-5

2-5

Calibration Gases ..................................................................................................................

2-7

 

a.

Zero Calibration Gas.......................................................................................................

2-7

 

b.

Downscale Standard Gas ...............................................................................................

2-7

 

c.

Upscale Standard Gas....................................................................................................

2-7

2-6

Sample Handling ...................................................................................................................

2-7

 

a.

Sample Temperature Requirements...............................................................................

2-7

 

b.

Sample Pressure Requirements: General ......................................................................

2-7

 

c.

Normal Operation at Positive Gauge Pressures.............................................................

2-9

 

d.

Operation at Negative Gauge Pressures........................................................................

2-9

 

e.

Sample Flow Rate...........................................................................................................

2-9

 

f.

Corrosive Gases .............................................................................................................

2-10

2-7

Leak Test...............................................................................................................................

2-10

2-8

Purge Kit (Optional) ...............................................................................................................

2-11

Rosemount Analytical Inc. A Division of Emerson Process Management

Contents

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