PQ200 Ambient Fine Particulate Sampler
BGI Incorporated produces the PQ200 Ambient PM2.5 Federal Reference Method (FRM) and FRM "Portable Audit" Sampling Systems. The PQ200 is designed to meet exacting criteria for collecting 24-hour samples of ambient "Fine Particulate," according to the U.S. National Ambient Air Quality Standards (NAAQS), published July 18, 1997.
BGI has developed the Very Sharp Cut Cyclone (VSCC) which replaces the WINS impactor and allows 30 days between cleaning intervals. Further details may be viewed on an individual page. Existing PQ200 samplers may be converted.
PM2.5 (particles less than 2.5 micrometers in aerodynamic diameter) is collected on 47 mm PTFE membrane media at a volumetric sample rate of 16.67 Lpm after being size discriminated through two U.S. EPA designed inertial separators. Ambient temperature and barometric pressure measurements are made at actual sample conditions. A microprocessor and sophisticated volumetric flow control system are integrated to maintain precise sampling parameters while sampling data are continuously logged into the processor memory. Five minute actual ambient temperature and pressure conditions with volumetric sample flow rate, filter temperature, and pressure are recorded. Measured values and identification of flags indicating any anomalies are recovered by the operator by downloading a sample summary to a laptop or handheld computer. EPA's audit program makes exclusive use of the PQ200A version of the sampler. This item is available to all authorities and individuals who wish to sample or audit under EPA stringent guidelines.
The BGI Solar Panel accessory for the PQ200 will extend its operational time range from 24 hours to an indefinite period, depending upon the amount of ambient sunlight available in the region of use. As a practical matter the panel with the reconnected ballast battery will provide a minimum of 10-14 days of operation with only minimum ambient light. When interval sampling on three or six day cycles is contemplated operations far from a source of power are achievable.
EPA mandates two types of leak tests for all designated, PM2.5 samplers. The first test is readily accomplished with the shutoff adaptor furnished with each designated instrument. The second test, for internal bypass leakage requires an impermeable membrane to be placed in the cassette. The official version is published in the Federal Register: 40 CFR Part 50, 18 July 97 Appendix L 188.8.131.52 (a)(2).
Because the membranes are easily misplaced BGI provides a standard cassette complete with 0.005 in thick TFE Membrane, a standard filter and labeled transport tin. (Part Number CF2). Available for separate purchase are our new impermeable membranes, produced from very thin, pliable pure gum rubber; available in packets of six (Part Number RD006) or premounted in a standard FRM cassette with 5 replacement membranes (Part Number KT006).
BGI was the first FRM manufacturer to recognize the need to minimize the amount of air flowing through the filter holder compartment of an FRM sampler. To minimize deposition on the external surfaces of a cassette, we have developed an accessory dust excluder to completely protect the cassette. This accessory has been approved by the U.S. EPA. Instructions for installation appear in the PQ200 instruction manual (versions 1.6 and later).
Cassette Transport Carrier
Since the inception of the PM2.5 there has been a discerned need for a top quality cassette transport carrier. BGI has met that need with the Model F214. The body of the carrier is manufactured from nickel-plated aluminum. The cassette is centered in a recess but has a generous clearance annulus for ease of removal. The cassette is rigidly held in an all-metal container. There are no problems with material flaking, nor insecure covers. Sturdily manufactured to a high standard for a lifetime of reliable service.
Helpful Hint: One of the best and least expensive ways to transport cassette carriers to the field is in small "soft" lunch boxes.
Universal PQ/TSP Sampling Inlet The publication of an extensive multi year European aerosol study* of inlet performance confirms the utility of the US EPA louvered inlet. This is essentially the top half of the McFarland Texas A&M Federal Reference Method (FRM) inlet without the impactor and water excluder sections. The Inlet (P/N PQTSP) should be utilized with a minimum of a 12” long inlet sample tube (P/N A1719L19) to avoid bluff body effects.
* L Kenny, et al. “Aspiration and sampling efficiencies of the TSP and Louvered particulate matter inlets”, J. Environ. Monit, 2005, 7 481-487.
|Size and Weight|
|Enclosure||48 lbs (21.8 kg)|
|w/o Battery||40 lbs (18.2 kg)|
|Dimensions||16 x 19 x 18 in
(411 x 48 x 47 cm)
|Height of inlet
|6.57 ft (2 m)|
|PQVSCC||FRM Ambient Fine Particulate Sampler, PM2.5, Complete with Very Sharp Cut Cyclone,
Dual Voltage (120/240)
|PQVSCCSP||FRM Ambient Fine Particulate Sampler, PM2.5, Complete with Very Sharp Cut Cyclone,
Dual Voltage (120/240)
|PQAUDIT||EPA FRM Audit version of PQ200|
|VPW12||Spare stage complete with carrying case|
|61652100||Type A/E Glass Fiber Filters, 37 mm, 100/pkg|
|FG03700F||37 mm, Fiberglass filters, 500/pk.|
46.2mm, 2.0 µm Pore PTFE Filter, PFA Support Ring, Alpha Numeric & Data Matrix Number (both sides) (50/pkg)
|F212||Filter cassette, 46.2 mm|
|F214||Cassette Transport Carrier (nickel-plated aluminum)|
|F215||Filter cassette with F214 Transport Carrier|
|DE1||Dust excluder accessory for filter cassette|
|L30||Flow rate measurement adapter|
|RD006||Gum rubber leak test membrane, packet of six|
|KT006||Gum rubber leak test membrane mounted in standard filter cassette, with five replacements|
|SSI2.5||EPA Louvered PM10 Inlet|
|A1719||12 in. long down tube|
|PQTSP||Universal PQ/TSP Sampling Inlet|
|X008||Inlet "O" ring kit (2 sets)|
|X009||Filter Ass'y (w/ WINS Impactor) "O" ring kit
(1 set-8 "O" rings)
|X010||Extension tube "O" ring kit (2 sets of 2 "O" rings)|
|X011||WINS Cup "O" rings, pkg. of 6|
|X012||WINS "O" rings, pkg. of 6|
|SSI2.5C||Kit for converting PM10 inlet to PM2.5/10 (flat plate to louvered design)|
|WE10||Kit for converting PM2.5 sampler to PM10
|PQ104||External or internal battery, 12 volts|
|EBC1||External battery cable for Marine battery|
|SP22||Solar panel, rigid, 32 watt, with cable -- to connect to battery (external) and stand|
|7524||3 mL transfer pipets, pkg. 10|
|CF2||Filter cassette for Type 2 EPA leak check (47 mm filter cassette with filter, membrane, carry container)|
|VPW30||Dow 704 silicone oil, 30 mL|
|VPW100||Dow 704 silicone oil, 100 mL|
|X014||Pump rebuild kit: valves, diaphragms, and "O" rings|
|X015||Advanced pump rebuild kit: valves, diaphragms, "O" rings and bearing|
|X016||Total pump rebuild kit: Valves, diaphragms, "O" rings, bearing and motor|
|PQMOTOR||Motor for PQ Pump|
|PQ2 BattPCA||Battery PCB|
|PUMP||Pump Maintenance Manual (v.3 -- free download)|
|2411DC||Dual Cassette for Speciation Sampling|
|X020||Filter Ass'y (w/ VSCC) "O" ring kit (1 set-13 "O" rings)|