Purge Protection

Purge Protection

Purge Protection for Harsh Environment HMI.

These monitors and computers are purge protected and can be configured to allow safe hazardous area HMI operations in Division 1 or Division 2 areas. 

What is purge protection?

VarTech offers purge protection in our ToughStation and workstation product lines. Purged protected units allow for general-purpose equipment (single board computers and other electronic components) to be used in a hazardous area as long as these parts are placed inside of the purged enclosure.

What types of purge protected systems does VarTech use?

VarTech uses (2) main types of purge systems, Type X and Type Z. Type X systems are used in Class I or II, Division 1 to non-hazardous areas. Type Z systems are used in Class I, Division 2 to non-hazardous areas. The type of system that will be used is dictated by the specific environment the unit will be located in.

Type X purge

Type X Purge

This purge system reduces the hazard of Division 1/Zone 1 to unclassified within the protected enclosure, enabling use of general purpose, non-hazardous area equipment in a Class I and Class II, Division 1 (or Zone 1) location.

Type Z purge

Type Z Purge

This purge system reduces the hazard of Division 2/Zone 2 to unclassified within the protected enclosure, enabling use of general purpose, non-hazardous area equipment in a Class I, Division 2 (Zone 2) location.

What are some applications where purge protection would be used?

There are several different applications in which a purged system would be required, one of the most dangerous would be chemical plants along with oil/gas refineries. Purged systems are also needed in mills where there are large amounts of fine, flammable fibers in the air that could ignite. Facilities that produce cosmetics (lipstick, eye shadow, blush, etc…) are also areas where these systems would be required due to the environment that is created during the production of these types of products.

Purge Protected Computer Workstations:

Watch the product video for Vartech’s new 32″ purge protected computer workstation. View this demo video on Youtube


CID2 Fully Sealed Monitors and
Computers

ToughStation Hazardous Area Specifications
  • Class I Division 2 certified against gas and vapor in abnormal conditions
  • Fully sealed NEMA 4X (IP66) protection
  • Corrosion-resistant 316 stainless steel enclosures
  • Shock-mounted motherboard (computer version)
  • Sealed captive I/O cables
  • Non-incendive: incapable of causing a spark or ignition under normal conditions
  • VESA mounting pattern 100mm x 100mm

CID2 Panel Mount Monitors and
Computers

C1D2 Panel Mount Monitors and Panel PCs
  • Class I Division 2 certified against gas and vapor in abnormal conditions
  • NEMA 4X (IP66) protection at the front bezel
  • Corrosion-resistant 316 stainless steel bezel
  • Modular design for easy integration into an existing systems’ sealed enclosure
  • Rugged black powder-coat rear aluminum enclosure

Purge Protected Kiosk Monitors
and Computers

Div 1 Purge Workstations
  • Type X purge – suitable for Class I and Class II, Div 1/Zone 1 or Type Z purge – suitable for Class I, Div 2/Zone 2
  • Explosion protection by isolating energized internal display or computer components from flammable gasses or elements in the atmosphere
  • 3 fully sealed NEMA 4X (IP66) protected mechanical designs, 316 stainless steel enclosures