Operating Instructions SKC Deployable Particulate Sampler (DPS) System SKC Inc.
DPS System Quick Guide Media Preparation and Installation 1. Prepare impaction discs and filters. 2. Disassemble impactor. 3. Insert collection filter in filter cassette. 4. Press prepared impaction disc into top of filter cassette. 5. Reinsert filter cassette in impactor. 6. Reassemble impactor. Sampling Setup and Calibration 1. Set up sample pump. Set pump flow rate to 10 L/min. (See Leland Legacy Quick Guide on page 10. For advanced programming, see Leland Legacy Operating Instructions.) 2.
Table of Contents Introduction............................................................................................ 1 Performance Profile .............................................................................. 2 Principle of Operation ........................................................................... 3 Media Preparation ................................................................................. 4 Impactor Preparation ..............................................................
INTRODUCTION The SKC DPS System is a compact, portable, battery-operated, and cost-effective particulate sampling system that ensures the ability to monitor particulate matter (PM) in indoor and outdoor environments and in urban, industrial, or rural settings. The system features the fully programmable constant flow Leland Legacy® Sample Pump, the IMPACT Sampler, and other equipment needed for effective ambient PM10 or PM2.5 sampling.
PERFORMANCE PROFILE Flow Rate: 10 L/min 50% Cut-point: 10 μm or 2.5 μm Run Time: > 24 hours on one battery charge Power: Rechargeable lithium-ion (Li-Ion) battery, 7.4 V, 12-Ah capacity,† 88.
PRINCIPLE OF OPERATION A sample pump draws particle-laden air at a flow rate of 10 L/min through an inertial impactor to separate airborne particles according to aerodynamic diameter. Particles enter the impactor through eight nozzles on top of the sampler. The inlet nozzles are sized to operate at a 10 L/min flow rate causing eight airjets to impinge onto the impaction disc positioned below the inlet nozzles.
MEDIA PREPARATION Collection Filters: Equilibrate and pre-weigh filters in a clean environment according to appropriate procedures. Record the weight as the pre-sample weight. Impaction Disc: Ready-to-use pre-oiled disposable plastic impaction discs are included with the system (qty. 25). Replacement pre-oiled plastic discs are available as SKC Cat. Nos. 225-395 (qty. 25) and 225-395A (qty. 50). Using an oiled impaction disc reduces particle bounce.
Inserting a Collection Filter into the IMPACT Sampler The IMPACT Sampler will arrive already assembled. Disassemble it to insert collection filter. 1 Unscrew the inlet from the exhaust. Remove the filter cassette. Ensure the stainless steel support screen is in place in the bottom of the filter cassette. 3a. Use the filter cassette opener to open the filter cassette. 3b. Slide the filter cassette horizontally into the “U” of the opener until the two halves of the cassette loosen.
Inserting an Impaction Disc into the IMPACT Sampler For PM2.5 or PM10 sampling, insert an impaction disc only after a collection filter has been loaded into the filter cassette. For PM2.5 or PM10, ensure a collection filter has been loaded into the filter cassette (see Inserting a Collection Filter into the IMPACT Sampler). 1 Place the impaction disc in the recessed area on the filter cassette top. The rough side of the impaction disc should face up.
SAMPLE PUMP OPERATION The user may choose to operate the pump manually in the field (on/off ), program a schedule into the pump manually, or program the pump for multiple schedules from a PC with optional DataTrac® for Leland Legacy Software (see Ordering Information, Accessories). See page 10 for a Quick Guide for operating the SKC Leland Legacy Sample Pump. For advanced programming, see the complete Leland Legacy Pump Operating Instructions.
charging. After charging is complete, disconnect the battery from the charger and connect the pump to the battery (see Battery Setup). After charging the battery pack, it is good practice to run the pump for approximately 5 minutes before calibrating. This ensures the battery is in more steady-state conditions and improves the agreement in pre and postsampling calibrations.
Battery Replacement 1. Record all necessary data before unplugging the pump from the battery. 2. Remove the plug on the connecting cable from the jack on the battery adapter (on top of the external battery assembly). 3. Insert the plug on the connecting cable into the battery adapter jack on a new, fully charged external battery assembly. 4. Insert the external battery assembly into the foam compartment in the case. Ensure there is no tension on the connecting cable.
Leland Legacy Quick Guide Terms » Star button • Scrolls through run time data and Setup options Up and down arrow buttons • Toggle between display choices and increase or decrease sampling parameters in Setup Button sequence = press buttons individually [] = press simultaneously = security code, always press in sequence Security code • Prevents unauthorized changes to the pump’s sampling program Programming Sequences » • To activate pump (e.g.
CALIBRATION AND SAMPLING Calibration Calibrate pump flow rate with the IMPACT Sampler in line (loaded with representative filter and impaction disc). See pump and calibrator operating instructions. Set the pump flow rate to 10 L/min (see Leland Legacy Quick Guide on page 10). Ensure the pump has run for 5 minutes before proceeding with calibration.
Sampling 1. Replace the representative sample media used for calibration with new, preweighed media (see Media Preparation and Impactor Preparation). 2. Mount the bracket at the desired location and at breathing zone height (6 feet or 2 meters) using wire ties or other fasteners. Mount the impactor on the mounting bracket by threading the clamp knob into the bottom of the impactor. 3. Insert the screw on the rain cover into the screw hole in top of the impactor inlet and rotate the cover until tight. 3 4.
SAMPLE REMOVAL, SHIPPING, AND ANALYSIS Removing the Collection Filter and Impaction Disc 1 Unscrew the impactor inlet from the exhaust. Locate the recessed area on the filter cassette top and remove the impaction disc. If chemical analysis of larger particles is desired, place in an appropriate container for shipping to a laboratory for analysis (see Ordering Information, Accessories for glass jars). Gently lift the filter cassette from the exhaust. 4a.
ORDERING INFORMATION Description Cat. No. DPS System*†#∞ includes a Leland Legacy Sample Pump with connection case and charger (100-240 V), 2 external battery assemblies with adapters (packaged separately), IMPACT sampling head, 2 filter cassettes, calibration adapter, rain cover for sampling head, 25 disposable impaction discs,∆ filter cassette opener, tubing with quick-connect fitting, and mounting bracket, in a heavy-duty lockable carry case PM10 Kit 100-3901 PM2.
ORDERING INFORMATION Replacement Parts IMPACT Sampler Inlets PM10 PM2.5 IMPACT Sampler Inlet O-rings, pk/3 IMPACT Sampler Exhaust IMPACT Sampler Exhaust O-ring Quick-connect O-rings, pk/3 Filter Cassette Cassette Opener Rain Cover, grey Mounting Bracket Quick-connect Fitting, on 6.5-foot reinforced PVC tubing Reinforced Flexible PVC Tubing, 6.5 feet Silicone Tubing, 0.4 feet, pk/2 Calibration Adapter Calibration Tubing, 1.
LI-ION BATTERY SHIPMENT Rechargeable lithium-ion batteries for use with SKC sample pumps have been tested in accordance with the UN Manual and are proven to meet requirements of each test in the UN Manual of Test Criteria, Part II, subsection 38.3. They have a watt-hour (Wh) rating below 100.