SKC DPS Manuel utilisateur

Operating Instructions

SKC Deployable Particulate

Sampler (DPS) System

SKC Inc.

863 Valley View Road

Eighty Four, PA 15330

Form 38049 Rev 1702

Pre3

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. For

advanced programming, see Leland Legacy Operating Instructions.)

2. Screw calibration adapter onto impactor.

3. Use tubing with quick-connect to attach pump inlet to outlet of impactor. Use short tubing to

connect inlet of calibration adapter to outlet of calibrator to form a calibration train. Calibrate

pump ﬂow rate with calibrator. Record ﬂow rate. Reset accumulated data if required.

4. Disconnect calibrator and remove calibration adapter from impactor. Remove calibration

media and place new unexposed media in impactor.

5. Mount bracket at desired location.

6. Screw impactor onto mounting bracket.

7. Screw rain cover onto impactor.

Sampling

1. Turn on pump and record pertinent data. (Leland Legacy pump may be started manually or

automatically, see Quick Guide.)

2. Turn off pump after desired sample time has elapsed. Record pertinent information.

3. Remove rain cover, reinstate calibration train, and verify pump ﬂow rate.

Sample Removal

1. Use quick-connect to detach tubing from pump.

2. Disassemble impactor.

3. Remove impaction disc.

4. Remove ﬁlter cassette, disassemble, and remove collection ﬁlter.

5. Place collection ﬁlter in appropriate container for shipping.

SKC Inc., 863 Valley View Road, Eighty Four, PA 15330 • www.skcinc.com

Pre5

Table of Contents

Introduction............................................................................................ 1

Performance Proﬁle .............................................................................. 2

Principle of Operation........................................................................... 3

Media Preparation ................................................................................. 4

Impactor Preparation ............................................................................ 4

Cleaning .......................................................................................................................4

O-ring Care................................................................................................................... 4

Inserting a Collection Filter into the IMPACT Sampler ................................................. 5

Inserting an Impaction Disc into the IMPACT Sampler ................................................ 6

Sample Pump Operation....................................................................... 7

Charging the Battery .................................................................................................... 7

Reading the Charging Status LED ............................................................................... 8

Battery Setup................................................................................................................ 8

Battery Replacement.................................................................................................... 9

Leland Legacy Quick Guide ....................................................................................... 10

Calibration and Sampling ................................................................... 11

Calibration .................................................................................................................. 11

Sampling .................................................................................................................... 12

Sample Removal, Shipping, and Analysis ........................................ 13

Removing the Collection Filter and Impaction Disc.................................................... 13

Shipping Samples ...................................................................................................... 13

Analysis ...................................................................................................................... 13

Ordering Information........................................................................... 14

Li-Ion Battery Shipment...................................................................... 16

Warranty............................................................................................... 16

Indicates a reminder or note

Indicates a warning or caution

INTRODUCTION

The SKC DPS System is a compact, portable, baery-operated, and cost-eﬀective

particulate sampling system that ensures the ability to monitor particulate maer

(PM) in indoor and outdoor environments and in urban, industrial, or rural seings.

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. All components are packaged in an easily carried heavy-

duty Pelican®case from which the system operates. See Figure 1.

The heart of the DPS System is the patented* IMPACT Sampler. This inertial impactor

is designed to remove particles larger than a speciﬁc cut-point (2.5 μm or 10 μm) by

capturing them on a disposable oiled impaction disc that reduces particle bounce.

Particles smaller than the cut-point are collected on a 47-mm ﬁlter. The IMPACT

Sampler mounts easily and makes media changes fast and simple with its convenient

removable ﬁlter cassee and opener.

* U.S. Patent No. 7,334,453

The SKC DPS System includes a Leland Legacy Sample Pump with connection case

andcharger (100-240V), IMPACT sampling head, 2ﬁlter cassees, calibration adapter,

raincoverfor sampling head, 25 disposable impaction discs, ﬁlter cassee opener, tubing

with quick-connect ﬁing, and mounting bracket in a heavy-duty lockable carry case.

Two external baery assemblies with adapters are packaged separately.

Calibration tubing

Mounting

bracket

Rain cover

Additional

ﬁlter

cassette

Leland Legacy

pump with

connection case

and cable

Tubing with

quick-connect ﬁtting

Quick-connect

release

Cassette

opener

Quick-connect ﬁtting

External battery

assemblies with

battery adapters (2)

World-wide plugs

for charger

Calibration adapter

Impaction discs

(25)

IMPACT sampler

with ﬁlter cassette

Charging unit and

power supply

Figure 1. DPS System

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,†

88.8 Wh

Battery Recharge Time: 15 hrs

Impaction Discs: • Recommended impaction disc to reduce particle bounce:

37-mm disposable pre-oiled porous plastic disc (supplied with

DPS System)

• For chemical analysis of larger particles:

37-mm ﬁlter (quartz or PTFE§)

Collection Filter: 47-mm quartz or PTFE§with support ring

Analysis: Gravimetric and/or chemical

Tubing: 3/8-in ID reinforced ﬂexible PVC (supplied)

Temperature: Charging: 32 to 113 F (0 to 45 C)

Storing: -4 to 95 F (-20 to 35 C)

Operating: 32 to 104 F (0 to 40 C)

Operating Humidity: 0 to 95% non-condensing

Altitude: Do not use pump beyond 7500 ft.

RFI/EMI Shielding: CE marked

Case Dimensions: 18.5 x 14.1 x 6.9 in (47 x 36 x 18 cm)

Complete System Weight: 13 lbs (5.9 kg)

Sampling Head (Impactor)

Dimensions: 2.6 dia. X 1.8 H x 3.8 L in (7 x 5 x 10 cm)

Sampling Head (Impactor)

Weight: 0.5 lb (0.23 kg)

Note: The DPS System provides data similar to data from Federal Reference Method samplers. The

DPS System is not a U.S. EPA reference or equivalent method for compliance sampling.

† DPS Systems contain Leland Legacy pumps with Li-Ion baeries and may be subject to special

shipping regulations.

§ Back pressure on PTFE ﬁlters can vary within the same lot.

Use in non-explosive environments only. Not intrinsically safe

PRINCIPLE OF OPERATION

A sample pump draws particle-laden air at a ﬂow rate of 10 L/min through an iner-

tial impactor to separate airborne particles according to aerodynamic diameter. See

Figure 2. 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. Particles

larger than the sampler cut-point with enough inertia to cross the airstream lines

impact on the impaction disc. The airﬂow, containing smaller particles, makes a

sharp turn, passes through the openings in the top of the ﬁlter cassee, and follows

through to a 47-mm ﬁlter where the smaller particles collect.

The top of the ﬁlter cassee accommodates the impaction disc. For optimum impac-

tor performance, a 37-mm oiled porous plastic disc is recommended as disposable

collection substrate (supplied with system). If chemical analysis of larger particles

is desired, a 37-mm ﬁlter (quaror PTFE) may be used.

Inlet

PTFE O-ring

Impaction disc

BUNA-N O-ring

Exhaust

The two main components of the DPS System:

IMPACT Sampler and Leland Legacy Sample Pump

Exploded view of IMPACT Sampler

Rain cover

Airﬂow

Filter cassette top

Collection ﬁlter

Stainless steel support

Filter cassette bottom

Figure 2. IMPACT Sampler and Leland Legacy Sample Pump

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.

37-mm ﬁlters (quaror PTFE) may be used if chemical analysis of larger par-

ticles is desired.

IMPACTOR PREPARATION

Cleaning

For optimum performance, the IMPACT Sampler inlet, exhaust, and ﬁlter cas-

see should be cleaned after ﬁve runs or upon a noticeable buildup of material.

This will remove oil buildup from the top of the ﬁlter cassee and other residue

built up from frequent sampling. Disassemble the impactor and wash parts in

water with a liquid detergent or soap. Rinse and air dry all parts thoroughly in a

clean environment.

Do not place any mechanical object in the inlet nozzles.

O-ring Care

Visually inspect the condition of the BUNA-N exhaust O-ring (see illustration on

page 3 for location). Ensure the O-ring surface is smooth (i.e., without cracks, cuts,

or other damage). Ensure the O-ring is ﬁed properly in its channel. Replace the

exhaust O-ring if there is apparent damage, stretching, or thinning. It is recom-

mended that the PTFE inlet O-ring be replaced by the manufacturer only.

Inserting a Collection Filter into the IMPACT Sampler

The IMPACT Sampler will arrive already assembled. Disassemble it to insert

collection ﬁlter.

Unscrew the inlet from the exhaust. Remove the ﬁlter cassee.

3a. Use the ﬁlter cassee opener

to open the ﬁlter cassee.

3b. Slide the ﬁlter cassee horizon-

tally into the “U” of the opener

until the two halves of the cas-

see loosen. Gently pull halves

apart.

Ensure the stainless steel support

screen is in place in the boom of the

ﬁlter cassee.

Using forceps, place a preweighed

47-mm ﬁlter on the support screen.

Press the ﬁlter cassee top into the

ﬁlter cassee boom.

Reinsert the cassee into the impactor.

Technical Tidbit

• Use forceps to carefully

insert and remove the

collection filter. See

Accessories for forceps.

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 cassee.

Technical Tidbits

• Install the rain cover (included with the DPS System) on the inlet of the

IMPACT Sampler when sampling outdoors.

• SKC recommends using a new impaction disc for each sample.

For PM2.5 or PM10,

ensure a collection filter

has been loaded into the

ﬁlter cassee (see Inserting

a Collection Filter into the

IMPACT Sampler).

Place the impaction disc in the recessed area

on the ﬁlter cassee top. The rough side of the

impaction disc should face up. SKC-supplied discs

are stamped with “UP” on the appropriate side.

Place the ﬁlter cassee on the exhaust and screw

the impactor inlet and exhaust together just until

tight. Further hand-tighten by 1/4 turn only.

Do not overtighten the impactor inlet and

exhaust. Do not use the barbed ﬁing as

leverage when tightening.

Keep the sampler upright until the inlet

is securely screwed onto the exhaust to

prevent the impaction disc from being

dislodged.

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®Software for Leland Legacy (see Ordering

Information, Accessories).

See Quick Guide for operating instructions for the SKC Leland

Legacy Sample Pump. For advanced programming, see the

complete Leland Legacy Pump Operating Instructions.

Charging the Battery

Completely charge a new baery pack using the SKC-approved charger (Cat. No.

223-241) before operating the pump. It may be necessary to charge the baery a

few times before maximum baery capacity is achieved.

Cautions:

• Do not charge or operate the pump with or without a charger in hazardous

locations.

• Use only the SKC-approved charger for this pump. Use of an unapproved

charger may damage the baery and pump and voids any warranty.

• Do not open, disassemble, short circuit, crush, incinerate, or expose the

baery to ﬁre or high temperatures.

• Tampering with the baery pack voids any warranty.

• Ensure proper orientation of charging cable before plugging it into the

charging jack. Improper orientation/contact will short-circuit the baery

and voids any warranty.

• Short-circuiting the baery pack will render it immediately inoperative.

• Failure to follow warnings and cautions voids any warranty.

The baery pack may be kept on the SKC-approved charger for an

indeﬁnite time.

1. Insert the plug from the charging unit into the

charging port on the baery adapter (on top of

the external baery assembly).

2. Insert the plug from the power supply into the

jack on the charging unit.

3. Install the appropriate wall plug on the power

supply and plug the power supply into a power

outlet.

The baery will recharge in approximately 15

hours. For a complete charge, do not run the pump

connected to the external baery assembly during



External

battery

assembly

Battery

adapter

Charging

unit plug

Power

supply

Charging

unit

External

battery

assembly

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