SKC DCS Manuale utente

Operating Instructions

SKC Deployable Cartridge

Sampler (DCS) System

SKC Inc.

863 Valley View Road

Eighty Four, PA 15330

Form 38048 Rev 1812

Pre3

DCS System Quick Guide

Sampling Head and Cartridge Installation

1. Disassemble sampling head: Unscrew inlet from cartridge holder section. Unscrew

cartridge holder section from exhaust section. Clean parts and allow to dry.

2. Thread cartridge holder section onto exhaust section.

3. Insert media cartridge into cartridge holder (arrow pointing toward exhaust).

4. Reinstall inlet section onto cartridge holder section.

Setup and Calibration

1. Set up sample pump. (See Leland Legacy®Quick Guide. For advanced programming,

see Leland Legacy Operating Instructions.)

2. Ensure media cartridge is installed in sampling head.

3. Thread calibration adapter into sampling head inlet.

4. Use tubing with quick-connect ﬁtting to connect pump inlet to outlet of sampling head.

5. Use short tubing to connect inlet of calibration adapter to outlet of calibrator.

6. Calibrate pump ﬂow rate to 10 L/min and record the pre-sample ﬂow rate.

7. Disconnect calibrator and remove calibration adapter from sampling head.

8. Mount bracket at desired location.

9. Install sampling head on mounting bracket.

10. Install rain cover on sampling head.

Sampling

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

manually or automatically, see Leland Legacy Quick Guide.)

2. After desired sampling period, record sample stop time. Remove rain cover. Reinstate

calibration train to verify pump ﬂow rate. Record post-sample ﬂow rate.

3. Turn off pump. Record pertinent information.

4. Remove sampling head: Use quick-connect release to detach tubing from pump inlet.

Remove tubing from sampling head. Remove sampling head from bracket. Move

sampling head to a clean area.

Sample Removal

1. Disassemble sampling head: Unscrew inlet from cartridge holder section.

2. Lift media cartridge from cartridge holder section, wrap in aluminum foil, and place in

supplied aluminum can. Transport to lab.

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

Sampling Head Preparation ..................................................................4

Cleaning the Sampling Head.....................................................................................4

O-ring Care for the Sampling Head...........................................................................4

Inserting a Media Cartridge into the Sampling Head.................................................5

Sample Pump Operation .......................................................................6

Charging the Battery .................................................................................................6

Reading the Charging Status LED ............................................................................7

Battery Setup.............................................................................................................7

Battery Replacement.................................................................................................7

Leland Legacy Quick Guide ......................................................................................8

Calibration and Sampling ......................................................................9

Calibration .................................................................................................................9

Sampling .................................................................................................................10

Sample Removal and Shipping ...........................................................11

Removing the Media Cartridge from the Sampling Head........................................11

Storing and Transporting Samples..........................................................................11

Ordering Information............................................................................12

Li-Ion Battery Shipment.......................................................................13

Warranty..............................................................................................13

Indicates a reminder or note

Indicates a warning or caution

INTRODUCTION

The SKC Deployable Cartridge Sampler (DCS) System (Figure 1) is a compact,

portable, and baery-operated sampling system that ensures the ability to sample

gaseous polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls

(PCBs), pesticides, and associated particulates. The system features the fully

programmable constant ﬂow Leland Legacy Sample Pump and an easy-to-use

sampling head that houses a stainless steel media cartridge. See Figure 2. The

media cartridges are provided preloaded with either PUF and 47-mm quarﬁlter

or 47-mm quarﬁlter/PUF/XAD-2 sorbent/PUF. The easily deployed system is

packaged in a portable heavy-duty Pelican®case from which the system operates.

The SKC DCS System includes a Leland Legacy Sample Pump with connection case and cable,

two external baery assemblies with adapters (packaged separately), charger (100-240 V), sampling

head, calibration adapter, rain cover for sampling head, sample tubing with quick-connect ﬁing,

calibration tubing, and mounting bracket in a heavy-duty lockable carry case. Media cartridges

are available separately.

Calibration tubing

Mounting

bracket

Rain cover

Leland Legacy

pump with

connection

cable

Tubing with

quick-connect ﬁtting

Quick-connect

release

Quick-connect ﬁtting

(not shown)

External battery

assemblies

with battery

adapters (2)

Charging unit and

power supply

Calibration adapter

Sampling head

Worldwide plugs

for charger

Figure 1. DCS System

PERFORMANCE PROFILE

Flow Rate: 10 L/min

Run Time: 24 hrs 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

Pre-ﬁlter: 47-mm quartz, QM-A, 450-μm thickness

(Not supplied with system)

Sorbent: PUF (polyether type), 40-mm diameter, cleaned or

(Not supplied with system) PUF/XAD-2 sorbent/PUF

Analysis: Gas chromatography/mass spectrometry (GC/MS) or

high resolution gas chromatography/high resolution mass

spectrometry (HRGC/HRMS) dependent on method used

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

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

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

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

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: 12.20 lbs (5.5 kg)

Sampling Head

Dimensions: 2.6 dia. x 3.6 H x 3.8 L in (7 x 9 x 10 cm)

Sampling Head Weight: 0.60 lb (0.27 kg)

(without cartridge)

Cartridge Weight: 0.75 lb (0.34 kg)

† DCS Systems contain Li-Ion baeries and is subject to special shipping regulations.

PRINCIPLE OF OPERATION

A sample pump draws air at a ﬂow rate of 10 L/min through nozzles on top of the

sampling head and into the media cartridge inside the cartridge holder section.

The media cartridge contains a cleaned 47-mm quarﬁlter that collects particles

and a cleaned PUF or PUF/XAD-2/PUF sorbent that adsorbs gases and vapors.

See Figure 2. The aluminum foil-wrapped cartridge is supplied in an aluminum

can with lid so that the sample is protected from light and contamination during

transport. The ﬁlter and sorbent media are combined for extraction followed by

GC/MS or HRGC/HRMS depending on the method used.

Inlet section

PTFE O-ring

BUNA-N O-ring

Exhaust section

The two main components of the DCS System:

DCS Sampling Head and

Leland Legacy Sample Pump

Cartridge holder

section

Exploded view of the

DCS Sampling Head

Figure 2. DCS Sampling Head and Leland Legacy Pump

SAMPLING HEAD PREPARATION

Cleaning the Sampling Head

All cleaning, loading, and unloading should be conducted in a controlled

environment to minimize any chance of potential contamination. When new

or when using the sampler at a diﬀerent location, all sample contact areas need

to be cleaned. Rinse with appropriate organic solvent. Allow the solvent to

evaporate before loading a cartridge.

For deployed applications where method-speciﬁed solvents are

unavailable, use isopropyl (rubbing) alcohol or a clean tissue wipe.

Do not place any mechanical object in the inlet nozzles.

O-ring Care for the Sampling Head

Visually inspect the condition of the BUNA-N exhaust O-ring. See Figure 2.

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 recommended that the

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

Inserting a Media Cartridge into the Sampling Head

Wear disposable, clean, lint-free nylon or powder-free surgical gloves

to handle the media cartridge.

1. Disassemble sampling head. See Figure 2

for placement of parts.

a. Unscrew inlet section from cartridge

holder section.

b. Unscrew cartridge holder section

from exhaust section.

Clean and allow to dry. See Cleaning the

Sampling Head.

2. Thread cartridge holder section onto

exhaust section.

3. Remove media cartridge from

aluminum foil and insert into cartridge

holder section. Ensure airﬂow arrow on

media cartridge points to exhaust section.

The ﬁlter should be on the inlet side of the

media cartridge.

4. Thread inlet section onto cartridge

holder section until just tight. Further

hand-tighten by 1/4 turn only.

Thread cartridge holder section

onto exhaust section.

Insert media cartridge into cartridge

holder section.

Thread inlet section onto cartridge

holder section.

Disassemble sampling head.

Inlet

section

Cartridge

holder

section

Exhaust

section

SAMPLE PUMP OPERATION

The user may choose to:

• Operate the pump manually in the ﬁeld (on/oﬀ)

• Program a schedule into the pump manually

• Program the pump for multiple schedules from a PC

with optional DataTrac®for Leland Legacy Software (see

Ordering Information, Accessories).

See the Leland Legacy Quick Guide to operate 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 pump with or without 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 temperatures in excess of 212 F (100 C).

• 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 plug from power supply into the jack on the

charging unit.

3. Install the appropriate wall plug on the power

supply and plug power supply into a wall 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

charging. After charging is complete, disconnect

baery from charger and connect pump to baery.

See Baery Setup.



External

battery

assembly

Battery

adapter

Charging

unit plug

Power

supply

Charging

unit

External

battery

assembly

After charging the baery pack, it is good practice to run the pump for

approximately 5 minutes before calibrating. This ensures the baery is

in more steady-state conditions and improves the agreement in pre and

post-sampling calibrations.

Reading the Charging Status LED

The Li-Ion Charging Unit indicates baery charge

status via an LED on the unit that blinks in speciﬁc

paerns. Observe the LED steadily for > 5 seconds

to read charge status.

LED Action Charge Status



steady

Charge in progress



2 sec

OFF

{

.25 sec



2 sec

(Repeats) Approximately

80% charged

OFF

{

2 sec



.25 sec

OFF

{

2 sec

(Repeats) Charge completed

Battery Setup

1. Insert the plug on connecting cable from pump

into the jack on the baery adapter (on top of

the external baery assembly).

2. Insert external baery assembly into a foam

compartment in the case. Ensure there is no

tension on the connecting cable.

Battery Replacement

1. Record all necessary data before unplugging pump from baery.

2. Remove plug on connecting cable from jack on baery adapter (on top of

the external baery assembly).

3. Insert plug on connecting cable into baery adapter jack on new, fully

charged external baery assembly.

4. Insert external baery assembly into foam compartment in case. Ensure

there is no tension on the connecting cable.

Power supply jack

Charge status LED

For more information on SKC Lithium-ion pump batteries, go to

http://www.skcinc.com/instructions/1918.pdf.

Connecting cable

External battery

assembly

Indice

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