8
•
Tripod mounted. The unit can be attached to any standard tripod using the
threaded opening on the bottom base (see accessory attachment fitting on Fig. 4).
3.4 Air Sampling Guidelines
Although the
personal
DataRAM is designed primarily for intramural use, i.e. for
indoor air quality, in-plant, or mining environment monitoring, its active sampling
version (model
p
DR-1200) also makes it compatible with extramural use (i.e.
ambient monitoring). General ambient monitoring applications, however, are
performed preferentially using an appropriate inlet configuration, in order to ensure
representative particle sampling under conditions of variable wind speed and
direction. Consult with Thermo Fisher Scientific for such outdoor applications.
For typical area monitoring applications, the
personal
DataRAM should be placed
and operated centrally within the area to be monitored, away from localized air
currents due to fans, blowers, ventilation intakes/exhausts, etc. This is to ensure
representative sampling within the area to be assessed.
3.5
Environmental Constraints and Certifications
The
personal
DataRAM is designed to be reasonably dust and splash resistant,
however, it is not weatherproof. To operate the unit outdoors provisions should be
made to protect it from environmental extremes outside its specified range, and from
any exposure to precipitation.
The
personal
DataRAM has received intrinsic safety approval (No. 2G-4126-0) from
the U.S. Mine Safety and Health Administration (MSHA) for use in coal-mining
environments containing methane gas. The MSHA approval (type 2G) closely
resembles the standard intrinsic safety rating as defined by Class 1, Div. 1, Group D.
This approval makes the MIE
personal
DataRAM the only commercially produced
direct reading dust monitor so certified by MSHA and, therefore, the only instrument
of this type permitted to be used routinely in U.S. coal mines and similar
environments.
The
personal
DataRAM is certified for compliance with the electromagnetic
radiation limits for a Class A digital device, pursuant to part 15 of the FCC Rules.
The unit also complies and is marked with the CE (European Community) approval
for both immunity to electromagnetic radiation and absence of excessive emission
interference.
4.0 ACCESSORIES
4.1 Standard
Accessories
The
personal
DataRAM is provided to the user with the following standard
accessories:
