ADM-880C 07/20/09ii
5.10.2 INSTALLING DATAFLOW SOFTWARE 28
5.10.3 USING DATAFLOW SOFTWARE 28
5.10.4 IMPORTING SAVED DATA INTO A SPREADSHEET 29
5.11 BATTERY DISPLAY AND BATTERY LIFE 29
5.12 RESET SWITCH 29
6.0 VELOCITY MEASUREMENT 31
6.1 VELOCITY CORRECTION FACTORS 31
6.2 PITOT TUBE VELOCITY MEASUREMENT 32
6.3 AIRFOIL PROBE VELOCITY MEASUREMENT 33
6.3.1 DUCT VELOCITY USING AIRFOIL PROBE 34
6.3.2 FUME HOODS AND SAFETY CABINETS 34
6.3.3 EXHAUST HOODS - AIRFOIL PROBE 34
6.3.4 LAMINAR FLOW WORKSTATIONS - AIRFOIL PROBE 35
6.4 SINGLE POINT CENTERLINE AIR VELOCITY MEASUREMENTS 35
6.5 VELGRID AIR VELOCITY 35
6.5.1 CHEMICAL EXHAUST HOODS - VELGRID 36
6.5.2 LAMINAR FLOW WORKSTATION - VELGRID 36
6.5.3 AIR FLOW CALCULATION FROM VELGRID VELOCITY 36
6.6 VELOCITY: LOCAL DENSITY VERSUS STANDARD DENSITY 36
7.0 PRESSURE MEASUREMENT 38
7.1 DIFFERENTIAL PRESSURE 38
7.1.1 STATIC PRESSURE PROBES 38
7.1.2 PITOT TUBE "VELOCITY PRESSURES" 38
7.1.3 PITOT TUBE "STATIC PRESSURES" 38
7.1.4 PITOT TUBE "TOTAL PRESSURES" 39
7.2 ABSOLUTE PRESSURE 39
8.0 TEMPERATURE MEASUREMENT 40
8.1 TEMPROBE 40
8.2 AIRDATA MULTITEMP 40
9.0 AIR FLOW MEASUREMENT 42
9.1 FLOWHOOD FUNCTION 42
9.2 BACKPRESSURE COMPENSATION 42
10.0 FLOWHOOD ASSEMBLY 43
10.1 UNPACKING 43
10.2 FRAME ASSEMBLIES 43
10.3 FABRIC TOPS 43
10.4 TOP SUPPORT ASSEMBLY 43
10.5 HANDLE 44
11.0 FLOWHOOD OPERATING PROCEDURE 49
11.1 AIR FLOW - NONBACKPRESSURE COMPENSATED READINGS 49
11.2 AIR FLOW - BACKPRESSURE COMPENSATED READINGS 49
11.2.1 MEMORY DISPLAY IN FLOWHOOD MODE 50
11.2.2 RATIO ERR DISPLAY 50
12.0 SPECIAL BALANCING PROCEDURES 51
12.1 PROPORTIONAL BALANCING 51
12.2 LARGE RETURN AIR GRILLES 51
12.3 KITCHEN EXHAUST HOODS 51
12.3.1 RANGE EXHAUST FILTERS AND GREASE EXTRACTORS 51
12.4 CONSTANT VOLUME CONTROLLERS 51
12.5 LINEAR SLOT DIFFUSERS 52
12.6 SIDEWALL REGISTERS 52
12.7 14"x14"x14" SHORT TOP SET 52
12.8 SYSTEM PROBLEMS 52
13.0 CORRECTION FACTORS 53
13.1 BAROMETRIC PRESSURE DENSITY CORRECTION 53
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