SKC AIRCHEK 2000 User manual

Operating Instructions

SKC Inc.

863 Valley View Road

Eighty Four, PA 15330 USA

Form 37740 Rev 1707

Description...................................................................................................................................................1

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

Battery Operation

Installing the Battery Pack................................................................................................................... 5

Charging the Battery Pack...................................................................................................................5

Battery Charge Level Indicator............................................................................................................ 6

Replacing the Battery Pack .................................................................................................................6

Battery Eliminator ................................................................................................................................7

Introduction

Pump Display ......................................................................................................................................8

Keypad Basics.....................................................................................................................................9

Pump Activation...................................................................................................................................9

Pump Operating Modes.....................................................................................................................10

Setup

Verifying Battery Charge Level..........................................................................................................11

Entering and Navigating the User Interface.......................................................................................11

Using User Interface - Level One ......................................................................................................11

Using User Interface - Level Two ......................................................................................................12

Resetting Run Time Data ..................................................................................................................13

Setting Pump Flow Rate....................................................................................................................13

Setting Sample Time .........................................................................................................................14

Setting a Delayed Start......................................................................................................................15

Deleting a Delayed Start....................................................................................................................15

Deleting a Sample Time ....................................................................................................................16

Deleting a DataTrac 2000 Program...................................................................................................16

Operation

High Flow Applications (1000 to 3250 ml/min) ..................................................................................17

Set/Calibrate Flow Rate (Manual) ...........................................................................................17

Set/Calibrate Flow Rate (CalChek Single-point) .....................................................................18

Set Up/Sample (Constant Flow) .............................................................................................. 20

Low Flow Applications (5 to 500 ml/min)........................................................................................... 20

Set/Calibrate Flow Rate for Single Tube .................................................................................20

Set Up/Sample with Single Tube............................................................................................. 22

Set/Calibrate Flow Rate for Multiple Tubes ............................................................................. 23

Set Up/Sample with Multiple Tubes......................................................................................... 24

Maintenance

Replacing the Inlet Port Housing and Filter....................................................................................... 25

Full Calibration (CalChek Multiple-point) ........................................................................................... 25

Troubleshooting

CalChek Error Chart .......................................................................................................................... 27

Replacement Parts ....................................................................................................................................28

Accessories ...............................................................................................................................................29

Warranty.....................................................................................................................................................31

Indicates a warning or caution

Indicates a reminder or note

Table of Contents

Indicates a note or caution

Security Code 

Must be pressed within 10 seconds

of previous command

Mode Change

Press [] to toggle between Run and Hold.

AirChek 2000 Quick Guide

Operation

Star Button 

Scrolls through run time data, display options, and sampling parameters during pump setup

Up and Down Arrow Buttons 

Increase or decrease sampling parameters and toggle between display choices in setup

Button Sequence

= press buttons individually

[] = press simultaneously when bracketed

= security code, always press in sequence

Pump Activation

Press any button.

Pump Setup Options

User Interface Level One — Set Up Flow Rate

To enter flow rate setup, pump must be in Hold. Press [] to Run pump and press

within 10 seconds.

• Change and calibrate flow rate:

Flow rate and SET flash. Press or to change flow rate. Press when finished; ADJ

displays and flashes. Press or to adjust the flow until pump and calibrator agree.

When finished, press until End displays. Press [] to save new setting.

User Interface Level Two — Set Up Sampling and Display

To enter sampling and display setup, pump must be in Run. Press [] to Hold pump

and press within 10 seconds. Select from the following options:

• Clear accumulated data:

Press until CLr displays and then press []. Press until End displays and then

press [].

• Change temperature scale (F/C):

Press until temperature displays. Press or to switch units. Press until End

displays and then press [] to save new setting.

• Change atmospheric pressure scale (mm Hg/ins Hg/millibars):

Press until pressure displays. Press or to switch units. Press until End

displays and then press [] to save new setting.

• Change time scale (12 Hr/24 Hr):

Press until 12 Hr or 24 Hr displays. Press or to switch units. Press until End

displays and then press [] to save new setting.

• Change time of day:

Press until time displays. Press or to change flashing hour. Press to move to

minutes and press or to change. Press until End displays and then press []

to save new setting.

• Change sample time:

Press until SГ00 displays. Press or to change flashing digits. Press until End

displays and then press [] to save new setting.

To exit without saving changes in User Interface Level Two, scroll to Esc and press [].

The SKC AirChek®2000 Pump is an advanced programmable sample pump

that combines lightweight compact design, computer-compatible circuitry, and

a patented* isothermal flow sensor. AirChek 2000 can be used with optional

DataTrac®2000 Software and your PC to expand pump programmability and

record keeping options. The result of extensive research and development, the

AirChek 2000 Pump exemplifies SKC’s commitment to quality and innovation

in air sampling equipment.

* U.S. Patent No. 5,892,160 Inlet Port with

Protective Filter

Liquid

Crystal

Display

(LCD)

Battery

Status

Icon

Keypad

with

Operating

Buttons

Not shown:

Belt clip (back)

Battery

Charging Jack

(back)

Computer

Interface Port

(back)

AirChek 2000 Sample Pump

Battery

Pack

Flashing LED

Run Indicator

Description

Performance Profile

Flow Range: 1000 to 3250 ml/min (5 to 500 ml/min requires

low flow accessories. See Accessories.)

Flow Control: An internal isothermal flow sensor measures flow

directly and continuously. Sensor readings are used

in a flow monitoring algorithm to maintain calibrated

volumetric flow. In addition, built-in atmospheric

temperature and pressure sensors provide readings to

correct volumetric flow for these parameters when they

vary from point of calibration.

Compensation Range: 3000 ml/min at 15 inches water back pressure

2000 ml/min at 30 inches water back pressure

1000 ml/min at 30 inches water back pressure

Accuracies: Timing: 1 min/month at 25 C

Atmospheric

Pressure: ± 0.3 ins Hg

Flow Rate: ± 5% of set-point after calibration

Battery Charge

Level Indicator: Icon displays at full, mid, and low charge (see page 6)

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

Charging: 50 to 113 F (10 to 45 C)

Storage: -4 to 113 F (-20 to 45 C)

Operating Humidity: 0 to 95% non-condensing

Protect sample pump from weather when in use outdoors.

Altitude: The pump can apply correction to volumetric flow dur-

ing sampling for weather-related or altitude variations

from the atmospheric pressure established at calibra-

tion up to at least 7500 ft above and 5000 ft below sea

level.

Run Time: NiCad Battery: 10 hrs minimum at above compensa-

tion ranges; dependent on media used. See Table 1.

NiMH Battery: 12 hrs minimum at 2000 ml/min and up

to 30 inches water back pressure; dependent on media

used. See Table 2.

Battery Eliminator: Pump provides extended runs.

Compare the information in this table to pump compensation range to determine appropriate applications.

Typical Back Pressure of Sampling Media (inches water)

Flow Rate (L/min) 1.0 1.5 2.0 2.5 3.0

Filter/Pore Size (µm)

25-mm MCE, 0.8 6 9 12 15 18

25-mm MCE, 0.45 14 22 28 35 40

37-mm MCE, 0.8 2 3 4 5 6

37-mm PVC, 5.0 1 1 2 2 2.5

Performance Profile

Sample Time (SГ) AirChek 2000 sample time can be set up to 999 minutes

Setting: from the pump keypad or up to 43,200 minutes (30

days) from a PC using DataTrac 2000 Software. During

sampling, the pump LCD will display remaining run time

(will count time down from a set number of minutes)

when sample time is set from the keypad. The pump

LCD will show elapsed time in minutes when the pump

is programmed from a PC. If run time is longer than

9999 minutes (6.8 days), the sample time displayed on

the LCD will roll over to 1 after reaching 9999.

Time Display: Time of day in hours and minutes (12 or 24-hr

clock) with AM and PM indicators

Volume Display: Continually updated, based on corrected flow rate

multiplied by sampling time

Flow Fault: If the pump is unable to compensate for longer than

15 sec due to excessive back pressure, the pump enters

flow fault mode. During flow fault, the pump goes into

HOLD, the fault icon appears on the display during the

length of the fault, and the accumulated run time display is

frozen and retained. After 5 min in flow fault, auto-restart

is attempted every 5 min up to 10 times.

Power Supply: Rechargeable 4.8-V nickel metal hydride (NiMH)

battery pack, 3.5-Ah capacity or

Rechargeable 4.8-V nickel cadmium (NiCad) battery

pack, 2.0-Ah capacity

A battery eliminator is available (see Accessories);

use voids the UL Listing for intrinsic safety.

Charge Time: 6 to 8.5 hrs using PowerFlex charger

(varies with battery capacity

and level of discharge)

Size: 5.6 x 3 x 2.3 in (14.2 x 7.6 x 5.8 cm)

Weight: 22 oz (624 gm)

RFI/EMI Shielding: RFI/EMI-shielded case, CE marked

Intrinsic Safety: UL and cUL Listed

ATEX and ANZEx Models available

Tubing: Requires 1/4-in ID tubing

CE marked UL Listed for intrinsic safety

Use only SKC-approved parts to ensure reliable performance. Failure

to do so voids any warranty and the UL Listing for intrinsic safety.

Table 1. AirChek 2000 Run Time in Hours with

NiCad Battery

Following are typical run times achieved when using a fully charged nickel-

cadmium (NiCad) battery pack. Data is sorted by type of sample media. All run

times are listed in hours. Results obtained using a new pump and new fully

charged battery. Pump performance may vary.

Note

Mixed Cellulose (MCE) filter, 0.8-µm pore size

Flow Rate (L/min)

Filter Diameter

37 mm 25 mm

2.0 24.2 15.2

2.5 20.4 12.4

3.0 17.7 **

Polyvinyl Chloride (PVC) filter, 5.0-µm pore size

Flow Rate (L/min)

Filter Diameter

37 mm 25 mm

2.0 28.2 21.8

2.5 27.0 22.0

3.0 22.6 18.2

** Filter back pressure exceeded pump capability during testing.

Increases in back pressure during sampling due to buildup of

sample on the filter can decrease battery life.

Table 2. AirChek 2000 Run Time in Hours with

NiMH Battery

Following are typical run times achieved when using a fully charged nickel-

metal hydride (NiMH) battery pack. Data is sorted by type of sample media. All

run times are listed in hours. Results obtained using a new pump and new fully

charged battery. Pump performance may vary.

Note

Mixed Cellulose (MCE) filter, 0.8-µm pore size

Flow Rate (L/min)

Filter Diameter

37 mm 25 mm

2.0 37 32

2.5 33 26

3.0 30 21

Polyvinyl Chloride (PVC) filter, 5.0-µm pore size

Flow Rate (L/min)

Filter Diameter

37 mm 25 mm

2.0 44 40

2.5 36 34

3.0 31 27

Increases in back pressure during sampling due to buildup of

sample on the filter can decrease battery life.

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