Nortech N301BCATEX, N551BCATEX, N551DCATEX, N552BCATEX, N552BCXATEX Operating Manual

HAZARDOUS LOCATION

PNEUMATIC VACUUMS

ATEX Certified For Hazardous Locations

INCLUDES MODELS: N301BCATEX, N301BCXATEX, N301DCATEX, N551BCATEX, N551BCXATEX, N551DCATEX, N552BCATEX, N552BCXATEX

OPERATING MANUAL

UNITS COVERED BY THIS MANUAL

30 GALLON CAPACITY 55 GALLON CAPACITY

N301BCATEX N551BCATEX
N301BCXATEX N551BCXATEX
N301DCATEX N551DCATEX
N552BCATEX
N552BCXATEX

ATEX CERTIFICATION

Currently no US standards exist to certify non-electrically powered
equipment, such as pneumatic vacuums, for safe use in hazard­ous locations. However, Europe has such standards and they are
known as ATEX Directives. NORTECH engaged SIRA Test &
Certification, Ltd, a United Kingtom-based, nationally recognized
testing laboratory, to certify that the above NORTECH Hazardous
Location Pneumatic Vacuums meet the applicable ATEX Directives.

PARTS INCLUDED WITH UNIT

After a comprehensive evaluation, SIRA Test & Certification certified
the above models have the following rating:

II2 GD c IIC T6

This ATEX rating is equivalent to the following National Fire Protec­tion Association (NFPA) 70: National Electric Code (NEC) rating:

Class I Division 1* Groups A, B, C, D T6
Class II Division 1 Groups E, F, G T6
Class III

*

Zone 1 only

OPTIONAL EQUIPMENT

2 7

SAFETY FEATURES

COMPRESSED AIR SUPPLY

NORTECH Hazardous Location Pneumatic Vacuums are designed
to eliminate and dissipate the buildup of static charges. The fol­lowing safety features ensure the components of the vacuum unit
are electrically connected and that the entire unit can easily be
grounded.

All vacuum parts and accessories are constructed of metal (electri­cally conductive), or with plastic infused with conductive additives.
Painted parts are coated with electrically conductive paint.

The filter is surrounded with conductive steel mesh. Steel springs
hold the filter to the cover and provide electrical continuity.

Metal-to-metal contact between the cover and the container is
provided through the braided grounding strap.

Adequate compressed air supply is essential to the proper perfor­mance of your NORTECH vacuum. Compressed air requirements
are as follows:

2B-Series Models.................................................110 cfm

N552BCATEX
N552BCXATEX

B-Series Models......................................................68 cfm

N301BCATEX
N301BCXATEX
N551BCATEX
N551BCXATEX

D-Series Models.....................................................47 cfm

N301DCATEX
N551DCATEX

Recommended operating pressure for all NORTECH vacuums is
100 psi, although all models will operate at lower pressures with
a corresponding reduction in performance. Use of 3/4” ID air sup­ply hose with 3/4” Chicago style connectors is recommended to
ensure adequate air flow is delivered to the vacuum.

NOTE: Make all compressed air connections with the
compressed air source turned off. Disconnect com­pressed air connections only after the compressed air
supply has been turned off and the air supply hose
vented by opening the valve on the vacuum. NEVER
disconnect a pressurized compressed air hose.

Static conductive vacuum hose eliminates the generation of static
electricity caused by material passing through the vacuum hose.

The grounding lug on the cover provides one means to connect the
vacuum via wire or cable to electrical ground. Static conductive
air supply hose provides another means to ground the vacuum.
The steel drum dolly with steel wheels provides a third means for
grounding the unit if the floor on which the unit rests is in turn electri­cally grounded.

See GROUNDING THE VACUUM on Page 4 for more information on
proper grounding procedures.