ADM-860C 04/14/08i
CONTENTS
1.0 INTRODUCTION 1
1.1 GENERAL DISCUSSION 1
2.0 SPECIFICATIONS 2
3.0 EXTERNAL FEATURES 4
3.1 KEYPAD 4
3.2 FEATURES ON SIDES AND BACK OF METER 4
4.0 DISPLAY MESSAGES AND PROMPTS 7
4.1 READ PROMPTS 7
4.2 MEASUREMENT READOUTS 7
4.3 FUNCTION READOUTS 8
5.0 USING THE AIRDATA MULTIMETER 16
5.1 GENERAL USE 16
5.2 TREND READINGS 17
5.3 MEMORY/AVERAGE/TOTAL FUNCTION 17
5.3.1 MEMORY OPERATION 17
5.3.2 RECALL 18
5.3.3 REPLACE READING IN MEMORY 18
5.3.4 ERASE READING IN MEMORY 18
5.3.5 CLEAR MEMORY 19
5.4 DATA DOWNLOAD TO A PRINTER 19
5.4.1 DOWNLOAD INDIVIDUAL READINGS TO A PRINTER 19
5.4.2 DOWNLOAD READINGS IN MEMORY TO A PRINTER 19
5.5 DATA DOWNLOAD TO A COMPUTER 20
5.5.1 CONFIGURATION FILE SET-UP IN WINWEDGE 21
5.5.2 PORT AND DATA INPUT SETTINGS 22
5.5.3 FUNCTION KEY COMMANDS 22
5.5.4 SET-UP CONNECTIONS AND OPEN THE APPLICATIONS 23
5.5.5 INDIVIDUAL READINGS CONTROLLED FROM COMPUTER KEYBOARD 23
5.5.6 DOWNLOAD READINGS FROM MEMORY USING COMPUTER KEYBOARD 23
5.5.7 CONTROL BUTTONS, CURSOR CONTROL, AND FILE PATHS 23
5.5.8 AUTOMATIC REPEAT READINGS CONTROLLED BY WINWEDGE 24
5.5.9 MINIMIZING WINWEDGE 25
5.5.10 ALTERNATIVE DOWNLOAD METHOD 25
6.0 VELOCITY MEASUREMENT 26
6.1 VELOCITY CORRECTION FACTORS 26
6.2 PITOT TUBE VELOCITY MEASUREMENT 27
6.3 AIRFOIL VELOCITY MEASUREMENT 29
6.3.1 DUCT VELOCITY USING AIRFOIL PROBE 30
6.3.2 FUME HOODS AND SAFETY CABINETS - AIRFOIL PROBE 30
6.3.3 EXHAUST HOODS - AIRFOIL PROBE 30
6.3.4 LAMINAR FLOW WORKSTATIONS - AIRFOIL PROBE 31
6.4 SINGLE POINT CENTERLINE AIR VELOCITY MEASUREMENTS 31
6.5 VELGRID AIR VELOCITY 31
6.5.1 CHEMICAL EXHAUST HOODS - VELGRID 32
6.5.2 LAMINAR FLOW WORKSTATION - VELGRID 32
6.5.3 AIR FLOW CALCULATION FROM VELGRID VELOCITY 32
7.0 PRESSURE MEASUREMENT 34
7.1 DIFFERENTIAL PRESSURE 34
7.1.1 STATIC PRESSURE PROBES 34
7.1.2 PITOT TUBE "VELOCITY PRESSURES" 34
7.1.3 PITOT TUBE "STATIC PRESSURES" 35
7.1.4 PITOT TUBE "TOTAL PRESSURES" 35
7.2 ABSOLUTE PRESSURE 35
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