Siemens ET 77E Series Spezifikationen PDF herunterladen (Seite 2)

SD77

TABLE OF CONTENTS

SECTION AND TITLE PAGE

1.0 INTRODUCTION.................................................................................................................................................6

1.1 MODEL DESIGNATION...................................................................................................................................6

1.2 GENERAL SPECIFICATIONS..........................................................................................................................7

1.3 PRODUCT CERTIFICATIONS.........................................................................................................................8

1.3.1 ATEX Installations.......................................................................................................................................8

1.3.2 Supplemental Instructions for ATEX Certified Models...............................................................................9

1.3.3 CSA Hazardous Location Precautions........................................................................................................11

1.4 CUSTOMER/PRODUCT SUPPORT ...............................................................................................................12

2.0 INSTALLATION ................................................................................................................................................22

2.1 MOUNTING .....................................................................................................................................................22

2.2 INSTRUMENT AIR REQUIREMENTS..........................................................................................................25

2.3 PIPING..............................................................................................................................................................26

2.4 TRANSMISSION DISTANCE.........................................................................................................................26

2.5 TAPPED EXHAUST ........................................................................................................................................26

2.6 EXHAUST PORT SELECTION.......................................................................................................................26

2.7 SHIPPING AND RESTRICTION SCREWS....................................................................................................27

2.8 WIRING............................................................................................................................................................27

2.8.1 Intrinsically Safe Models............................................................................................................................28

3.0 OPERATION.......................................................................................................................................................29

4.0 CALIBRATION ..................................................................................................................................................30

4.1 TEST EQUIPMENT .........................................................................................................................................30

4.2 PROCEDURE ...................................................................................................................................................30

4.3 RANGE CHANGE............................................................................................................................................30

5.0 MAINTENANCE ................................................................................................................................................31

5.1 PREVENTIVE ..................................................................................................................................................31

5.2 CLEANING.......................................................................................................................................................31

5.2.1 Filter Screens..............................................................................................................................................31

5.2.2 Restriction Screw........................................................................................................................................31

5.2.3 Nozzle and Nozzle Seat..............................................................................................................................31

5.3 TROUBLSHOOTING.......................................................................................................................................32

5.4 COIL ASSEMBLY REPLACEMENT..............................................................................................................33

5.5 FLOAT REPLACEMENT ................................................................................................................................34

5.6 MODEL 77 TO MODEL 77-R CONVERSION...............................................................................................35

6.0 PARTS LIST........................................................................................................................................................36

7.0 HAZARDOUS LOCATION INSTALLATION DRAWINGS........................................................................39