Atec 8000, Operation And Maintenance Manual, Page: 7 / 80

Atmospheric Technology 1
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.