FEATURES
- Designed to Meet Class 1
Division 1
- Purged pressure switch
- NEMA 4X (IP66) sealed enclosure
- Water proof and dust proof
- Stainless steel construction
- Easy latch access
- Hard-anodized aluminum
heat sink
- Closed loop thermal cooling
for high heat environments
- Flexible mounting options
- Optional Non-Incendive
Keyboard/Mouse

CONTACT

HEADQUARTERS
11529 Sun Belt Ct.
Baton Rouge, Louisiana  70809

Phone
800.223.8050
International 001.225.298.0300
Fax
225.297.2440

E-mail
sales@vartechsystems.com

Website
www.vartechsystems.com

 

 

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Material Specifications

Regulator Body
Zinc w/ Enamel Finish

Regulator Handle
Polycarbonate

Enclosure Pressure Gauge
Alum. w/ Enamel Finish

Tube Fittings
316 SS Forged Body

Tubing
316 SS 1/4" .035 Welded

System Nameplates
Silk screened Lexan® & SS

Fastener Hardware
SS Screws & Bolts

Mounting Plate
316 14 Ga #3 Brush SS

EPCU Enclosed Body
Bead Blast Cast Alum.

Enclosure Warning

Nameplate
Silkscreened SS

Lexan® is a registered trademark of the
General Electric Company.

The VT750ESC is a NEMA 4X HMI system designed to meet Class 1, Div 1 protection. The purge system uses an automatic pressure switch to automatically trigger alarms in case of pressure loss.
Durable
The VT750ESC can easily handle the punishment of harsh computing environments. They are proven tough in real world applications such as industrial production areas, outdoor kiosks and public terminals.
The VT750ESC chassis has no external vents, so nothing can get under its skin, including dust, dirt, moisture, oil, chemicals or other harsh contaminants.
A hard-anodized aluminum heat exchanger and internal heat management system keep it cool in environments where ambient temperatures approach 60°C -- without using outside air.
Easy Access
VT750ESC is designed with easy maintenance and up-grades in mind. A latched panel provides simple access to this NEMA 4X HMI system. With its moderate weight and dimensions, VT750ESC enables flexible mounting options.

Display
17", 1280 x 1024 SXGA

Processor
T4500 2.30 GHz 800MHz FSB Intel Dual Core

BIOS
Phoenix-Award 16Mbit (SPI) with RPL/PXE
LAN Boot ROM, SmartView and customer
CMOS backup

O/S
Windows XP Professional
(optional Windows Embedded Standard or Windows 7)

System Memory
2 DDR2 533/667 SDRAM sockets, 2 GB
standard, 4 GB optional (~3.25
recognizable)

Graphics
Intel® GME965 GMCH Gen 4 Integrated
graphics engine

LAN
Integrated Intel Gigabit PCI Express LAN Chip

Hard Drive
500 GB Fast Access SATA drive

Power Input
12 VDC Optional:12/24 VDC AC by available
brick, 6 to 32V DC

Power Connector
Standard Power Inlet (IEC320 C14)

Power Consumption
40W max

Dimensions
20" W x 18" D x 11" H

PCI Expansion Slots
Optional PCI Express, Optional 1 or 2 32 bit

DVD Drive (E-IDE / ATAPI)
DVD Drive (E-IDE / ATAPI)
DVD-R, DVD+R, DVD-RW, DVD+RW, DVD-R
DL, DVD+R9, CD-R, CD-RW

I/O Ports
Back - 3 RS-232 COM port (Optional RS-422\485 port), 2 LAN ports, 4 USB 2.0, 2 Audio jacks
Front - 2 USB 2.0
Firewire Ports
2 x IEEE 1394a

Enclosure
Lockable door
NEMA 4X (IP66), 316 stainless steel
Anodized aluminum heat sink

Keyboard/Mouse (Optional)
Industrial silicone rubber keyboard
with integrated pointing device

Environmental/Thermal
NEMA 4X (IP66)
waterproof and dust proof

Temperature
Operational: 41°F to 140°F/5°C to 60°C,
Storage: -40°F to 149°F/-40°C to 65°C

Humidity
Operational: 10 ~ 80% (relative; non condensing)

Enclosure
Easy-open, lockable door
NEMA 4X (IP66), 316 stainless steel
Anodized aluminum heat sink

Construction
316 stainless steel
Anodized aluminum heat sink
10" handles
IP66 - NEMA 4X (IP66), waterproof and dustproof

Dimensions
Enclosure Only:
18" H x 20" W x 11" D
66 lb
Purge Kit Only:
20” (H) x 11” (W) x 10.5” (D), 38 lb

Purge System Mounting to Side (L/R), Top or Bottom

Windows Embedded Standard or Windows 7

Optional PCI Express, Optional 1 or 2 32 bit PCI Slots

Optional RS-422\485 port

Keyboard/Mouse

_____________________________________________________________

Purge System w/ Pressure Switch (Class 1, Div 1 Protection)

This Rapid Exchange® purging system operates on a supply of
compressed instrument air or inert gas. It regulates and monitors pressure
within sealed (protected) enclosure(s), in order to prevent combustible
dust accumulation or remove and prevent flammable gas or vapor
accumulations. The system accomplishes four air exchanges and maintains
a “safe” (0.25”) pressure. The system includes an Electrical Power Control
Unit (EPCU) that monitors system operation and controls enclosure power.
All start-up requirements must be satisfied before the EPCU will energize
power to the enclosure(s). These processes reduce the hazardous
(classified) area rating within the enclosure(s), in accordance with the NEC
- NFPA 70, Article 500, NFPA 496 and ISA 12.4.

Weight
38lb

Temperature Range
-20F to 120F

Supply Pressure Range
5 - 120 psi

Supply reguirements
Clean air or inert gas

Safe Pressure Setpoint
.25” / 1.0”

Safe Pressure Flow Rate
0.1 - 3.5 SCFH - Enclosure integrity determines actual flow rate

Safe Pressure Flow Rate
4 SCFM / 240 SCFH - With regulator
set to 60 psi min. during exchange

Exchange Time
As required - Time required to exchange 4 volumes within the enclosure(s), based on actual measured safe pressure flow rate or 5 minutes,
whichever is greater

System Supply Port
1/4" tube fitting

Enclosure Supply Fitting
1/4" tube fitting

Enclosure Reference Fitting
1/4" tube fitting

EPCU Conduit Port Size
1/2" FPT

EPCU Power Requirements
120 VAC 60Hz 10

EPCU Power Consumption
500mA

Dimensions
20" (H) x 11" (W) x 10.5" (D)
Height & Width dimensions reflect
mounting plate measurements. Depth
dimensions reflects overall easurement of
system, including components.

Mounting
Side (L/R), Top or Bottom

OPERATION

In accordance with system instructions, start-up requires air supply to be engaged
and EPCU power to be energized. The system must perform an exchange cycle
(determined by the safe pressure flow rate — 5 minutes minimum) before power
can be energized. Loss of safe pressure causes the EPCU to de-energize power to the protected enclosure(s). The purge system includes an explosion proof
differential pressure switch with form “C” contacts for audible of visual alarm
systems.