Cosmo LS-1866 - Default Chapter; Table of Contents

TABLE OF CONTENTS 1
TABLE OF CONTENTS
1
1
INTRODUCTION ........................................................................................................................... 5
1.1 Introduction ............................................................................................................................................... 5
1.2 Safety Hints .............................................................................................................................................. 5
1.3 Notes ........................................................................................................................................................ 6
2
2
GENERAL INFORMATION AND SPECIFICATIONS .................................................................... 7
2.1 General Information .................................................................................................................................. 7
2.2 Features ................................................................................................................................................... 7
2.3 Specifications ........................................................................................................................................... 9
2.3.1 General Specifications ...................................................................................................................... 9
2.3.2 Test Pressure Gauge ........................................................................................................................ 9
2.3.3 Timer Setting ................................................................................................................................... 10
2.3.4 Leak Rate Limit ............................................................................................................................... 10
2.3.5 Model Classifications ...................................................................................................................... 10
3
3
LEAK TESTING OVERVIEW ...................................................................................................... 11
3.1 Theory of Leak Test ................................................................................................................................ 11
3.1.1 Stage Summary .............................................................................................................................. 11
3.1.2 Internal pressure changes of the tested part and master ............................................................... 12
3.2 Leak Rate Theory and Equations ........................................................................................................... 12
3.3 Estimating the Test Timer....................................................................................................................... 14
4
4
FEATURE SUMMARIES ............................................................................................................. 15
4.1 Master-Preset ......................................................................................................................................... 15
4.1.1 Theory of Master-Preset ................................................................................................................. 15
4.1.2 Master-Preset operation ................................................................................................................. 15
4.1.3 When to execute a Master-Preset process .................................................................................... 16
4.2 Leak Calibration (Patented) .................................................................................................................... 16
4.3 Two-Level Limit Setting and Noise Reduction (NR) Mode ..................................................................... 17
4.4 Air-Operated Valve Performance and DPS Sensitivity Checks ............................................................. 17
4.5 Sensor Protection ................................................................................................................................... 18
4.5.1 Cleaning pneumatic circuit by Exhaust air blow (DL3) ................................................................... 18
4.5.2 External exhaust valve-ready ......................................................................................................... 18
4.6 CAL ports ................................................................................................................................................ 18
4.7 Clamp Output ......................................................................................................................................... 19
4.8 Exhaust Interference Prevention ............................................................................................................ 19
5
5
INSTALLATION .......................................................................................................................... 21
5.1 Installing the Unit .................................................................................................................................. 21
5.1.1 Using Quick Mounting Brackets (standard) .................................................................................... 21
5.2 Electrical Connection .............................................................................................................................. 23
5.3 Pneumatic Connection ........................................................................................................................... 24
5.3.1 Connection ports ............................................................................................................................. 24
5.3.2 Pressure sources ............................................................................................................................ 24
5.3.3 Notes on source air ......................................................................................................................... 25
5.4 Connecting Master and Tested part ....................................................................................................... 25
5.4.1 Notes on designing a sealing fixture ............................................................................................... 25
5.4.2 Master installation ........................................................................................................................... 27
5.4.3 Choosing proper connection to the tested part and the master ..................................................... 28
5.5 Leak Tester Installation Environment ..................................................................................................... 29
5.6 Procedure for installation and adjustment .............................................................................................. 30
6
6
PARTS IDENTIFICATION AND FUNCTIONS ............................................................................. 33
6.1 External Appearance .............................................................................................................................. 33
6.1.1 Indicators ........................................................................................................................................ 34
6.1.2 Keyboard ......................................................................................................................................... 35
6.1.3 Characters Appearing on the Digital Indicator .............................................................................. 36
6.1.4 Leak Test Stages ............................................................................................................................ 37
6.2 Settings and LED Indications ................................................................................................................. 38
7
7
BASIC OPERATIONS ................................................................................................................. 39
7.1 Turning on Power ................................................................................................................................... 39
7.2 Setting a Test Pressure .......................................................................................................................... 39
7.3 Test Pressure Gauge Upper and Lower Limit Setting ............................................................................ 39