GE Analytical Instruments ©2006 DLM 14291 Rev. A
4-2
Environmental Considerations
Operate the NOA 280 in an environment comfortable for human habitation with
reasonably constant temperature and humidity. Avoid elevated temperatures;
operating at temperatures greater than 85° F (30° C) may cause problems with the
LCD display and the PMT cooler..
Tools and Additional Supplies
The following items will be needed to install and operate the NOA 280:
Tools
The following tools will be required for all applications:
• Open End Wrenches - 1/4", 5/16", 7/16", 1/2", 9/16", 13/16" and 7/8"
(Adjustable wrenches can also be used)
• Adjustable wrench or 11/8" open-end wrench is required for
connecting regulators to gas cylinders.
• Phillips-head Screw Driver
• Hexdriver or regular screwdriver
Gases
A cylinder of oxygen or 95% oxygen, 5% CO
2
equipped with a two stage regulator
is required for the ozone generator. House oxygen and a flow controller may
also be used. If oxygen is not available, air can be used, however, the NOA will
need to recalibrated for gas measurements if air is used for the ozone
generator.
Data Collection
A computer (PC or Macintosh) is required for collection of data using the RS-232
output. For PCs, a Pentium is required. For Mac’s a PowerPC is required. The
computers should have at least 32 megabytes of RAM. For computers without a
internal serial port, a USB-Serial adapter is required.
For real-time display of the analog signal, a strip chart recorder or integrator
may be used. The analog signal can also be sent to a computer using an analog-
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