Atec 8000 User manual

Model 8000 Automated Sampler
Operations and Maintenance Manual
Version 3.02
January 17, 2019
2019 ATEC, 9727 Cotharin Road, Malibu, CA 90265-2112

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ATEC Model 8000 Toxic Air Sampler
Limited Warranty
Atmospheric Technology (ATEC) warrants to the original purchaser of the Model
8000 Toxic Air Sampler that should it prove defective by reason of improper
workmanship and/or material:
Parts and Labor: For one year on all components from the date of original
purchase, we will repair or replace, at our option, any defective part without
charge for the part. Parts used for replacement are warranted for the
remainder of the original warranty period.
To obtain warranty service, return the unit to ATEC. Shipping expenses are your
responsibility. This WARRANTY DOES NOT COVER damage caused by:
modification, alteration, repair or service of this unit by anyone other than ATEC;
physical abuse to, or misuse of the unit; operation in a manner contrary to the
instructions which accompany the unit; freight damage; or any damage caused by
acts of God such as lightning or fluctuation in electrical power. This warranty also
excludes all costs arising from installation, adjustment of user controls, initial
technical adjustments (set-up) and user-required maintenance including filter
changing.
Any express warranty not provided herein, and any remedy which, but for this
provision, might arise by implication or operation of law, is hereby excluded and
disclaimed. The implied warranties of fitness for any particular purpose are
expressly limited to a term of one year.
Under no circumstances shall ATEC be liable to purchaser or any other person for
any incidental, special, or consequential damages, whether arising out of breach of
warranty, breach of contract, or otherwise.

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1. INTRODUCTION 1
2. SYSTEM CONFIGURATION 3
2.1 Hardware 3
2.1.1 System Specification 3
2.1.2 Sampler Components 4
3. RUNNING THE SYSTEM 9
3.1 Hardware Setup 9
3.2 Display and Function Tabs 9
3.3 Date and Time 10
3.4 Site Identification 10
3.5 Cartridge Sampling Information 10
3.6 Ozone Scrubber Temperature 11
3.7 Abort 11
3.8 Function Tabs 11
4. PROGRAMMING THE MODEL 8000 13
4.1 Time/Date 13
4.2 Setup 13
4.3 Schedule 15
4.4 Leak Check 16
4.5 Data 17
4.6 Power Failures 19
4.7 SOP 19
4.8 Manual Mode 19
4.9 Advanced 20
5. LOCAL AREA NETWORK CONNECTION 21
5.1 Initial Network Setup 21
6. MAINTENANCE 25
6.1 Vacuum Pump 25

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6.2 Cartridge Filter 26
6.3 Ozone Scrubber 26
6.4 Mass Flow Controller Calibration Procedure 27
7. MODEL 8000 PARTS LIST 31
APPENDIX A SCHMATICS 33
APPENDIX B MANUAL FOR MASS FLOW CONTROLLER 49

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1. Introduction
This manual covers the installation, operation and routine maintenance of the ATEC
Model 8000 Automated Sampler. This instrument is a microprocessor controlled
sampler that can be programmed to draw ambient air through cartridges, filters, or
sorbent tubes for specified time periods. The sampler can be configured with
various options to provide up to three independent flow channels. Channel 1 is a
multi-port channel containing 8 ports. Each port can be programmed to sample over
a specific time period. The optional Channels 2 and 3 consist of single ports that
can be activated concurrently or for different time periods than Channel 1. All
channels use separate mass flow controllers (MFC) to regulate the flowrate. The
number of ports on Channel 1 can be increased in multiples of 8 up to a total of 24
ports by adding the Model 80xx expansion modules.
The sampler has the following features:
•Channel 1 ports and Channels 2 and 3 can be programmed to sample on a
specified date (e.g. 06/01/95) for a specified duration.
•All channels are automatically leak checked prior to sampling. If a leak is
detected, a leak check error is recorded for that channel or port.
•Sampling date, start time, stop time, average flowrate, minimum flowrate,
maximum flowrate, total volume sampled, sampling time duration, and error
status are stored for all channels. These data can be displayed on the screen
or transferred to a laptop or PC.Sampling data (i.e. time, flowrate, and
volume) can be logged at a minimum of every 5 minutes. These items are
included in the data transmitted to the PC or laptop.
•The mass flow controllers are auto zeroed prior to sampling.
•A leak check option is provided to manually leak check a port or channel.
2.

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3. System Configuration
3.1 Hardware
3.1.1 System Specification
Flowrate: Nominal 1.0 lpm with Sep-Pak cartridges. Adjustable
between 0-2 lpm depending on cartridge restriction.
Optional ranges available. Accuracy: ±1% FS
No. of Channels: 8 ports on Channel 1. Two other single port channels
with independent operation are optional. One blank
position. The number of channels can be increased
up to 24 with the addition of the either the Model 8008
or Model 8016 expansion modules.
Size: 17” (width) x 19” (depth) x 7” (high)
Weight: Approximately 50 pounds
Power: 115VAC, 7 amps maximum.
Inlet: ¼” tubing connector.
Cartridge Connections: Polypropylene Luer fittings.
Construction Materials: Teflon filter and PFA Teflon internal tubing, copper
coated with KI ozone scrubber, stainless steel
solenoid valves with viton seals.

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3.1.2 Sampler Components
This section describes the general operation and major components of the ATEC
Model 8000 Automated Sampler. Shown here is a schematic diagram of the
sampler. Air enters the sampler to the inlet valve. The inlet valve is normally closed
and allows leak checking of the entire flow system. Out of the inlet valve, the air
passes through the ozone scrubber and filter, and then enters a solenoid manifold.
When a selected port is activated, the air stream passes through the inlet solenoid,
through the cartridge, and returns to the outlet solenoid valve. Two solenoids are

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used to isolate the cartridge when sampling is not occurring. The flow from the
outlet solenoid valve passes through the outlet manifold to a mass flow controller
(MFC) and is exhausted with a vacuum pump. Only one port for Channel 1,
consisting of two solenoids and the cartridge, can be activated at a given time.
However, two optional channels can be used to obtain concurrent or co-located
samples. A microcomputer with a touchscreen display provides control for the
automated sampling.
3.1.2.1 Inlet Valve
The first component after the sampler inlet fitting is the inlet valve. This valve
isolates the system from the inlet air and allows the system to be fully leak checked.
If the ozone scrubber or inlet filter is changed, the total sysem should be checked for
leaks. This valve enables this to be done. If the SOP screen is used to setup
sampling, a system leak check is performed after the ports are leak checked.
3.1.2.2 Inlet Filter
A Teflon PFA filter holder contains a 47mm Teflon filter to remove particulates from
the air stream prior to entering the flow lines. The filter should be periodically
changed; the frequency will depend on conditions at the sampling site.
3.1.2.3 Temperature Controlled Ozone Scrubber
A temperature controlled copper tube coated with KI is used to remove ozone during
carbonyl sampling with DNPH cartridges. The microcomputer maintains a constant
heater temperature inside the ozone scrubber enclosure. The heater temperature
can be set using the Setup Option on the sampler display. The heater temperature
in Celsius is shown on the display. The controller is factory set to 50°C. An alarm is
displayed if the temperature exceeds +/- 5°C.
3.1.2.4 Solenoid Valves
Two 15VDC solenoid valves are used for each port. The normally closed valves are
mounted upstream and downstream of the cartridge. During normal sampling, both
solenoid valves are opened. A leak check is performed during the first 30 seconds
of each sampling interval. During leak check, the upstream solenoid is closed and
the entire sampling line, downstream solenoid valve, cartridge, and flow controller
are evacuated by the vacuum pump. If a small leak exists, the flowmeter will detect
the flow. During automatic operation, the microcomputer will set a flag if the flow

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exceeds 0.03 lpm (other values can be selected by the operator) at the end of the
30 second leak check.
3.1.2.5 Cartridge Connections
Inlet and outlet tubes are connected using male Luer fittings that have been swaged
on the end of the PFA Teflon flow lines attached to the solenoid valves. Some types
of cartridges have a male fitting on one end that requires a female connector to
adapt the sample lines. Excess tubing has been provided to accommodate different
length cartridges. Pushing or pulling the tubing at the point where it emerges from
the front panel can change the tubing length extending from the front panel. Make
sure that the tubing and not the Luer connection is pulled; excess force may
separate the fitting from the PFA Teflon tubing.
3.1.2.6 Mass Flow Controllers
Mass flow controllers with a range of 0-2 liters/min (other ranges available) are used
to control the sampling flowrate in each channel. Operation and maintenance
instructions are provided in Appendix A. Using the Setup option on the display sets
the flowrate.
3.1.2.7 Vacuum Pump
A diaphragm pump is used to draw air through the instrument. The pump is
mounted inside the sampler. It is rated for continuous duty and can maintain a
maximum vacuum level of 24 in Hg. using two MFCs flowing at 1 lpm.
3.1.2.8 Optional 8-Port or 16-Port Expansion Module
The Model 8000 can be expanded to a total of either 16 ports or 24 ports by the
addition of an expansion module. The Model 8008 adds an additional 8-ports while
the Model 8016 adds an additional 16-ports. The expansion module is electrically
connected to the Model 8000 by a single ribbon cable attached to the “EXP 1”
connector on the rear panel. Inlet and outlet pneumatic lines are connected by
attaching the “Flow 1” and “Flow 2” lines form the Model 8000 to the “Flow 1” and
“Flow 2” on the expansion module.
The Model 8000 looks for the expansion unit when power is turned on. If the
expansion module is not connected or there is a communication problem, the
software will not display the additional ports. If the connection between the

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expansion module and the Model 8000 is correctly made, the additional ports will
display once the Model 8000 is turned off and then turned back on.

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4. Running the System
4.1 Hardware Setup
Upon arrival, check all shipping containers for damage and notify the shipper if
damage has occurred. Retain the shipping container because the sampler must be
returned in the original packaging if warranty repairs are required. Plug the main
power cord into a 115VAC outlet. Turn the main power on by using the power
switch on the rear of the sampler. When power is applied, the display will illuminate
in approximately 20 seconds.
The Model 8000 uses an WVGA LCD color touch screen display to show current
operating status and to enter information into the computer. The computer is
accessed using the tabs which are displayed on the screen and can be activated by
finger touch or stylus. A pencil eraser also works well. The touch level of the screen
can be calibrated by using the TouchScreen button in the Setup function.
A USB connector is mounted below the touchscreen. This can be used to connect a
mouse, keyboard, label printer, or jump drive for retrieving data and updating the
sampler software.
All components, tubing, and fittings have been cleaned prior to assembly. The
completed sampler has been purged with clean humidified air prior to shipment.
After unpacking the instrument and verifying operation, the Model 8000 should be
purged with humidified zero air for a minimum of 24 hours before sampling.
4.2 Display and Function Tabs
Normally the display will show the default main screen as illustrated here. This
screen displays current sampling information and provides function tabs for the
operator to enter operating parameters and retrieve data. The main screen displays
the following:

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4.3 Date and Time
The current date, time, and day of the week is displayed at the top of the screen
4.4 Site Identification
A site identification label can be displayed below the time and date to identify the
sampler. For example “East River Site” could be shown to identify this sampler from
others used in a sampling network.
4.5 Cartridge Sampling Information
The cartridge flow rate and total volume are displayed. These values are
continuously updated every 10 seconds. One of the following status indicators will
also be shown in each status box, depending upon the sampling conditions:
Sampling—Indicates a channel is sampling
Waiting—Indicates a channel has been programmed to sample
Purging—Indicates a channel is purging prior to sampling
Idle—Indicates a channel has not been programmed to sample
Monday, November 26, 2005 18:58
Flow Volume Status
Cartridge
Time/Date Setup Schedules Data Leak Check SOP
Abort
Ch. 1 Port 1 Finished
11.8
East River Site
Port 2 Finished
11.5
Port 3 1.001 Sampling 10.4
Port 4 Waiting 0.0
Model 8000 Version 2.00
Manual AdvancedMain
Port 5 Waiting
0.0
Port 6 Waiting 0.0
Port 7 Waiting 0.0
Port 8 Waiting 0.0
Channel 2 0.992 Sampling
4.3
Te m p 50.2

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Aborted—Operator terminated sampling
Finished—A successful sample has been collected without errors
Leak Err—Cartridge failed spedified leak rate tolerance on start-up
Post Leak Err—Cartridge failed auto leak check at the end of sampling
Temp Tol—Ozone scrubber temperature exceeded ±5°C
Flow Tol—Specified cartridge flow rate tolerance exceeded
Zero Tol—Cartridge MFC required more than 1% zero compensation
Errors—Multiple errors, power outage, or sample aborted
4.6 Ozone Scrubber Temperature
The temperature of the ozone scrubber is displayed in the lower right hand corner of
the screen.
4.7 Abort
The Abort button is used to terminate sampling after purging has started. Pressing
the Abort button will require the operator to enter a new sampling sequence to
resume sampling.
4.8 Function Tabs
Several function tabs are located along the top of the screen to enable the operator
to interact with the sampler to set the date and time, enter operating parameters,
input a sampling schedule, retrieve data, leak check cartridges, set-up the sampler
using the SOP (Standard Operating Procedure) option, manually operate the
hardware, and input advance system parameters. The operation of each tab is
described in the Programming Section.

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5. Programming the Model 8000
The Model 8000 uses eight function tabs to allow the operator to enter or retrieve
information from the sampler: Time/date, Set-up, Schedules, Data, Leak Check,
SOP, Manual, and Advanced. Time/date is used to enter the current time and
date. Set-up is used to configure the sampler and store sampling parameters.
Sampling schedules are entered through the Schedules tab. Data can be displayed
or downloaded to a jump drive using the Data tab. Cartridges are manually leak
checked with the Leak Check tab. The SOP tab uses a standard operating
procedure to install and leak check the cartridges and program sampling schedules.
In Manual mode, the hardware can be uniquely activated to allow checkout and
troubleshooting. The system configuration and advance parameters are entered
using the Advanced tab.
5.1 Time/Date
The time and date that is stored in the Model 8000 can be changed using the
Time/Date tab. When this tab is touched, the operating system data and time
selection screen will appear. Once the changes have been made, pressing the OK
button in the upper right corner of this window will bring back the main screen that
should show the correct day of the week, date, and time.
5.2 Setup
The Setup tab is used to input cartridge operating parameters, , enable software
updates, and calibrate the touch screen. When the Setup tab is touched, a green
screen appears which allows the operator to change the following parameters for
cartridge sampling:
Setup Parameters
Ch.1 MFC Set Point
The sampling flow rate for the Channel 1 cartridge is specified in this box.

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Ch.2 MFC Set Point
The sampling flow rate for the Channel 2 cartridge is specified in this box
Flow Leak Limit
The flow leak limit is the maximum flow rate that is allowed for a cartridge to pass
either manual or automatic leak check. This value has the same units as the flow
rate.
Flow Tolerance
The cartridge flow rate is continuously monitored during sampling. If the flow rate
specified in Ch.1 MFC or Ch.2 MFC Set Point box is outside this tolerance, an error
status for flow tolerance will be generated. This value has the same units as the
flow rate.
Cycled Schedule
The Cycled Schedule value specifies the time interval in days between schedules.
This allows the operator to schedule repeated samples at a set interval automatically
(i.e. sampling repeated every 6 days if set to 6). The value must be greater than1to
be applied.
Purge Time
Purge time specifies the purging time in minutes of the inlet line and inlet manifold
before sampling the cartridges.
Data Write Interval
The Data Write Interval specifies the time interval for recording canister pressure
and cartridge flow rate data. The minimum time interval is 5 minutes.
Site Label