Table of C ontents
Airmetrics
iii
Integrated Gas S ampling Pro cedure . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Gas Sample Retrieval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
6
HARDWARE DESCRIPTION
47
Pneumatic System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Pneum atic System Flow S chema tic
. . . . . . . . . . . . . . . . . . . . . . . 47
Filter Ho lder Ass embly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Flowmeter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Flow Control System
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Miniature Brushless D.C. Double Acting Diaphragm Pump . . . . . . . 47
Electronics System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Motherbo ard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Programmable Timer
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Flow C ontroller C ircuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Elapsed Time Totalizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Interconnect Bo ard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Moth erboard E lectronics S chema tic . . . . . . . . . . . . . . . . . . . . . . . 50
Battery P ack Ch arger Ele ctronics S chema tic
. . . . . . . . . . . . . . . . . 50
Valve D river Boa rd Electro nics Sch ematic
. . . . . . . . . . . . . . . . . . 50
7
MAINTENANCE
51
Presepa rator/Filter H older As sembly . . . . . . . . . . . . . . . . . . . . . . . . . 51
Impactor Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Flow Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Programmable Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Battery Pack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Cleaning/Inspecting Pump Valves and Diaphragms . . . . . . . . . . . . . . . . 53
Cleaning/Inspecting Pump Head Valves . . . . . . . . . . . . . . . . . . . . 54
8
TROUBLESHOOTING
55
Airmetrics MiniVol Users Guide
iv
Airmetrics
Appendices
A
SAMPLER FLOW RATE CALIBRATION
59
B
GRAVIMETRIC ANALYSIS PROCEDURE
67
C
QUICK REFERENCE
79
D
WARRANTY POLICY
83
E
REPLACING DAMAG ED/DEFECTIVE COMPONENTS
85
F
PARTS LIST
87
G
FORMS and SCHEMATICS
105
List of Figures
Figure 2.1.
Attaching Battery Pack
7
Figure 2.2.
Programmable Timer
8
Figure 3.1.
Samp ler Contro ls and A djustme nts
14
Figure 4.1.
Mounted Sampler
23
Figure 4.2.
Tubing Configuration for PM Sampling Mode
24
Figure 4.3.
PM
10
Presepa rator and F ilter Holde r Assem bly
26
Figure 4.4.
PM
2.5
Presepa rator and F ilter Holde r Assem bly
27
Figure 5.1.
Tubing Configuration for Integrated Gas Sampling Mode
36
Figure 5.2.
Installing Tedlar® Bag
42
Figure 5.3.
Attaching Bag Canisters and Tubing
43
Figure 6.1.
Pneum atic System Flow S chema tic
48
Figure 7.1.
Regreasing PM
2.5
Impactor
52
Figure A.1.
Portable Sampler Calibration Output
61
Figure B.1.
Relative Hum idity Effects on Qu artz Filters
72
Figure F.1.
Main Circuit Board Parts Identification.
88
Figure F.2.
Valve Driver Board Parts Identification
90
Figure F.4.
Preseparator and Filter Parts Identification
94
Figure F.5.
Battery Pack Parts Identification
97
Figure F.6.
Integrated Gas Sampling Bag Parts Identification
99
Figure F.7.
Mounting Hardware Parts Identification
101